Malicious
Malicious

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PE Executable
MD5:
Size: 0 B
application/x-dosexec
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File
Detection
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
Symbol obfuscation
Low
1 malicious · 3 files
EXEb9c3b3a6718b335d778af3b91ce16003DcRat
Structure
Config. Field Value
Key (AES_256) dDI1V2huhuhuhuhuhuhuhuhuhuhu
Pastebin -huhuhuhu
Certificate MIICMDhuhuhuhuhuhuhuhuhuhuhu
ServerSignature iMYpq9huhuhuhuhuhuhuhuhuhuhu
Install fhuhuhuhu
BDOS fhuhuhuhu
Anti-VM fhuhuhuhu
Install File Chrhuhuhuhu
Install-Folder %Aphuhuhuhu
Hosts u888cohuhuhuhuhuhuhuhuhuhuhu
Ports 4huhuhuhu
Mutex DcRatMhuhuhuhuhuhuhu
Version 1huhuhuhu
Delay 1huhuhuhu
Group Dehuhuhuhu
We extracted this malware's full configuration (C2, credentials, campaign IDs…).
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Name Value
Module Name
Client.exe
Full Name
Client.exe
EntryPoint
System.Void Client.Program::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
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
150
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
59
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: call System.Boolean Client.Helper.MutexControl::CreateMutex()
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0057: ldsfld System.String Client.Settings::Anti_Process
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_006B: ldsfld System.String Client.Settings::BS_OD
call System.Void Client.Helper.AntiProcess::StartBlock()
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Void Client.Helper.ProcessCritical::Set()
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_009D: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Install.NormalStartup::Install()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00B1: call System.Void Client.Connection.Amsi::Bypass()
call System.Void Client.Helper.Methods::ClearSetting()
call System.Void Client.Connection.Amsi::Bypass()
leave IL_00C1: nop
pop <null>
leave IL_00C1: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_00D6: leave IL_00E1
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_00E1: ldc.i4 5000
pop <null>
leave IL_00E1: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00C1: nop
Module Name
Client.exe
Full Name
Client.exe
EntryPoint
System.Void Client.Program::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
1.0.7.0
Assembly Culture
<null>
Has PublicKey
False
PublicKey Token
<null>
Target Framework
.NETFramework,Version=v4.0
Total Strings
150
Main Method
System.Void Client.Program::Main()
Main IL Instruction Count
59
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: call System.Boolean Client.Helper.MutexControl::CreateMutex()
call System.Void Client.Helper.Anti_Analysis::RunAntiAnalysis()
call System.Boolean Client.Helper.MutexControl::CreateMutex()
brtrue IL_0057: ldsfld System.String Client.Settings::Anti_Process
ldc.i4.0 <null>
call System.Void System.Environment::Exit(System.Int32)
ldsfld System.String Client.Settings::Anti_Process
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_006B: ldsfld System.String Client.Settings::BS_OD
call System.Void Client.Helper.AntiProcess::StartBlock()
ldsfld System.String Client.Settings::BS_OD
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_0089: ldsfld System.String Client.Settings::In_stall
call System.Void Client.Helper.ProcessCritical::Set()
ldsfld System.String Client.Settings::In_stall
call System.Boolean System.Convert::ToBoolean(System.String)
brfalse IL_009D: call System.Void Client.Helper.Methods::PreventSleep()
call System.Void Client.Install.NormalStartup::Install()
call System.Void Client.Helper.Methods::PreventSleep()
call System.Boolean Client.Helper.Methods::IsAdmin()
brfalse IL_00B1: call System.Void Client.Connection.Amsi::Bypass()
call System.Void Client.Helper.Methods::ClearSetting()
call System.Void Client.Connection.Amsi::Bypass()
leave IL_00C1: nop
pop <null>
leave IL_00C1: nop
nop <null>
call System.Boolean Client.Connection.ClientSocket::get_IsConnected()
brtrue IL_00D6: leave IL_00E1
call System.Void Client.Connection.ClientSocket::Reconnect()
call System.Void Client.Connection.ClientSocket::InitializeClient()
leave IL_00E1: ldc.i4 5000
pop <null>
leave IL_00E1: ldc.i4 5000
ldc.i4 5000
call System.Void System.Threading.Thread::Sleep(System.Int32)
br.s IL_00C1: nop
Key (AES_256) MUTEXmalicious
dDI1V2huhuhuhuhuhuhuhuhuhuhu
CnC CNCmalicious
u88huhuhuhu
CnC CNCmalicious
u88huhuhuhu
CnC CNCmalicious
u88huhuhuhu
CnC CNCmalicious
u88thuhuhuhu
Ports PORTmalicious
4huhuhuhu
Mutex MUTEXmalicious
DcRatMhuhuhuhuhuhuhu
Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.
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