Malicious
Malicious

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PE Executable
MD5: 997352f25957b1c049ba69156c1e3cdc
Size: 65.54 KB
application/x-dosexec
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Symbol Obfuscation Score Low
MD5 997352f25957b1c049ba69156c1e3cdc
Sha1 30a8e072e7f687a1f6eacee82cb16f5cac879a9a
Sha256 20ecb87866b8002d5bdc52a3db1f13d3d12825eebe86864ede4fdef9140e8d98
Sha384 e8d2d581011b7795229291d8e93034a054195796f5f5684bb3efbfb7fddac361cab5fb25d4a6a31c2706198b4174bf20
Sha512 3b396c03b3ea34413a6c841f249c9b2ab0763e4fcd55408c881c4a353ee81ab46bbe9340167763c4408b8dd000190b47c35840b638cbc2e9a3028cca2267576a
SSDeep 1536:AXb9cBDZ+uJDiLnyVfbbnwS8GmEIVclN:AXuDZlJ4n2fbbn/SY
TLSH 6C535A003788C966E2EE4AF4BDF2560006B5D5732102DB5E7CC414DBAB9EFC64A166FE
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
997352f25957b1c049ba69156c1e3cdc
Malicious
Structure
DosHeader
PE Header
Optional Header (x86)
Section Headers
.text
.rsrc
.reloc
Resources
RT_GROUP_CURSOR4
ID:0001
ID:0
RT_VERSION
ID:0001
ID:0
RT_MANIFEST
ID:0001
ID:0
Config. Field Value
Key (AES_256) Q1kzT3huhuhuhuhuhuhuhuhuhuhu
Pastebin -huhuhuhu
Certificate MIICMDhuhuhuhuhuhuhuhuhuhuhu
ServerSignature YMhHkJhuhuhuhuhuhuhuhuhuhuhu
Install thuhuhuhu
BDOS fhuhuhuhu
Anti-VM fhuhuhuhu
Install File sextohuhuhuhuhuhuhu
Install-Folder %Aphuhuhuhu
Ports 443,13huhuhuhuhuhuhuhuhuhuhu
Mutex SCD_Sohuhuhuhuhuhuhuhuhuhuhu
Version 1huhuhuhu
Delay 1huhuhuhu
Group Sthuhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
Unlock with Essential
Name Value
Info
PE Detect: PeReader OK (file layout)
Module Name
sextop1.page.exe
Full Name
sextop1.page.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
sextop1.page.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
sextop1.page
Assembly Version
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
157
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.AntiProcess::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.Methods::IsAdmin()
brfalse IL_00B1: leave IL_00BC
call System.Void Client.Helper.ProcessCritical::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.Methods::PreventSleep()
pop <null>
leave IL_00DC: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00F0: leave IL_00FB
call System.Void Client.Helper.Methods::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
sextop1.page.exe
Full Name
sextop1.page.exe
EntryPoint
System.Void Client.Program::Main()
Scope Name
sextop1.page.exe
Scope Type
ModuleDef
Kind
Windows
Runtime Version
v4.0.30319
Tables Header Version
512
WinMD Version
<null>
Assembly Name
sextop1.page
Assembly Version
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
157
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.AntiProcess::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.Methods::IsAdmin()
brfalse IL_00B1: leave IL_00BC
call System.Void Client.Helper.ProcessCritical::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.Methods::PreventSleep()
pop <null>
leave IL_00DC: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00F0: leave IL_00FB
call System.Void Client.Helper.Methods::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
Q1kzT3huhuhuhuhuhuhuhuhuhuhu
Ports PORTmalicious
4huhuhuhu
Ports PORTmalicious
1huhuhuhu
Ports PORTmalicious
1huhuhuhu
Ports PORTmalicious
4huhuhuhu
Ports PORTmalicious
8huhuhuhu
Ports PORTmalicious
8huhuhuhu
Mutex MUTEXmalicious
SCD_Sohuhuhuhuhuhuhuhuhuhuhu
Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.
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