Malicious
Malicious

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PE Executable
MD5:
Size: 0 B
application/x-dosexec
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Symbol Obfuscation Score Low
PeID
.NET executableMicrosoft Visual C# / Basic .NETMicrosoft Visual C# / Basic.NET / MS Visual Basic 2005 - ASL Microsoft Visual C# v7.0 / Basic .NETMicrosoft Visual Studio .NET
1cbe8700731637b0e19485e6195401b1
Malicious
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
Config. Field Value
Key (AES_256) RjNHd2huhuhuhuhuhuhuhuhuhuhu
Ports 5huhuhuhu
Hosts 147.huhuhuhuhuhuhu
Version
Install fhuhuhuhu
Install-Folder %Aphuhuhuhu
Install File huhuhuhu
Mutex py比huhuhuhu
Certificate MIICKThuhuhuhuhuhuhuhuhuhuhu
ServerSignature HNsqEDhuhuhuhuhuhuhuhuhuhuhu
Anti-VM nhuhuhuhu
PasteBin fhuhuhuhu
BDOS 1huhuhuhu
Delay Dehuhuhuhu
Group fhuhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
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Name Value
Module Name
FS.exe
Full Name
FS.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
FS.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
FS
Assembly Version
3.6.0.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
163
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
77
Main IL 
ldc.i4.0 <null>
stloc.0 <null>
br IL_0015: ldloc.0
ldc.i4 1000
call System.Void System.Threading.Thread::Sleep(System.Int32)
ldloc.0 <null>
ldc.i4.1 <null>
add <null>
stloc.0 <null>
ldloc.0 <null>
ldsfld System.String Client.Settings::De_lay
call System.Int32 System.Convert::ToInt32(System.String)
blt.s IL_0007: ldc.i4 1000
call System.Boolean Client.Settings::InitializeSettings()
brtrue IL_0032: nop
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
nop <null>
ldsfld System.String Client.Settings::An_ti
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0047: leave IL_0052
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
leave IL_0052: call System.Void Client.Helper.A::B()
pop <null>
leave IL_0052: call System.Void Client.Helper.A::B()
call System.Void Client.Helper.A::B()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0067: leave IL_0072
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
leave IL_0072: nop
pop <null>
leave IL_0072: nop
nop <null>
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0087: leave IL_0092
call System.Void Client.Helper.Bjifos::StartBlock()
leave IL_0092: nop
pop <null>
leave IL_0092: nop
nop <null>
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00B1: leave IL_00BC
call System.Boolean Client.Helper.Mesth4ods::IsAdmin()
brfalse IL_00B1: leave IL_00BC
call System.Void Client.Helper.ProdfceassC1sritical::Set()
leave IL_00BC: nop
pop <null>
leave IL_00BC: nop
nop <null>
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00D1: leave IL_00DC
call System.Void Client.Install.NormalStartup::Install()
leave IL_00DC: call System.Void Client.Helper.Mesth4ods::PreventSleep()
pop <null>
leave IL_00DC: call System.Void Client.Helper.Mesth4ods::PreventSleep()
call System.Void Client.Helper.Mesth4ods::PreventSleep()
call System.Boolean Client.Helper.Mesth4ods::IsAdmin()
brfalse IL_00F0: leave IL_00FB
call System.Void Client.Helper.Mesth4ods::ClearSetting()
leave IL_00FB: nop
pop <null>
leave IL_00FB: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_0110: leave IL_011B
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_011B: ldc.i4 5000
pop <null>
leave IL_011B: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00FB: nop
Module Name
FS.exe
Full Name
FS.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
FS.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
FS
Assembly Version
3.6.0.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
163
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
77
Main IL 
ldc.i4.0 <null>
stloc.0 <null>
br IL_0015: ldloc.0
ldc.i4 1000
call System.Void System.Threading.Thread::Sleep(System.Int32)
ldloc.0 <null>
ldc.i4.1 <null>
add <null>
stloc.0 <null>
ldloc.0 <null>
ldsfld System.String Client.Settings::De_lay
call System.Int32 System.Convert::ToInt32(System.String)
blt.s IL_0007: ldc.i4 1000
call System.Boolean Client.Settings::InitializeSettings()
brtrue IL_0032: nop
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
nop <null>
ldsfld System.String Client.Settings::An_ti
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0047: leave IL_0052
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
leave IL_0052: call System.Void Client.Helper.A::B()
pop <null>
leave IL_0052: call System.Void Client.Helper.A::B()
call System.Void Client.Helper.A::B()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0067: leave IL_0072
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
leave IL_0072: nop
pop <null>
leave IL_0072: nop
nop <null>
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0087: leave IL_0092
call System.Void Client.Helper.Bjifos::StartBlock()
leave IL_0092: nop
pop <null>
leave IL_0092: nop
nop <null>
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00B1: leave IL_00BC
call System.Boolean Client.Helper.Mesth4ods::IsAdmin()
brfalse IL_00B1: leave IL_00BC
call System.Void Client.Helper.ProdfceassC1sritical::Set()
leave IL_00BC: nop
pop <null>
leave IL_00BC: nop
nop <null>
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_00D1: leave IL_00DC
call System.Void Client.Install.NormalStartup::Install()
leave IL_00DC: call System.Void Client.Helper.Mesth4ods::PreventSleep()
pop <null>
leave IL_00DC: call System.Void Client.Helper.Mesth4ods::PreventSleep()
call System.Void Client.Helper.Mesth4ods::PreventSleep()
call System.Boolean Client.Helper.Mesth4ods::IsAdmin()
brfalse IL_00F0: leave IL_00FB
call System.Void Client.Helper.Mesth4ods::ClearSetting()
leave IL_00FB: nop
pop <null>
leave IL_00FB: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_0110: leave IL_011B
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_011B: ldc.i4 5000
pop <null>
leave IL_011B: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00FB: nop
Key (AES_256) MUTEXmalicious
RjNHd2huhuhuhuhuhuhuhuhuhuhu
Ports PORTmalicious
5huhuhuhu
CnC CNCmalicious
147.huhuhuhuhuhuhu
Mutex MUTEXmalicious
py比huhuhuhu
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