QuasarRat PE Executable malware analysis – 71f7f5ef57f7

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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 · 5 files

EXE71f7f5ef57f73a3c96213926ccc70d96QuasarRat

Structure

BINResources

BIN.Net Resources

Config. Field	Value
Conf. AES-Salt	BF-EB-huhuhuhuhuhuhuhuhuhuhu
Conf. AES-Key	3100A4huhuhuhuhuhuhuhuhuhuhu
Version	1huhuhuhu
Port	4huhuhuhu
Host	178.huhuhuhuhuhuhu
ReconnectDelay	3huhuhuhu
SubDirectory	Suhuhuhuhu
InstallName	Clihuhuhuhu
Install	0huhuhuhu
Startup	0huhuhuhu
Mutex	0f02d0huhuhuhuhuhuhuhuhuhuhu
StartupKey	Quasahuhuhuhuhuhuhu
HideFile	0huhuhuhu
EnableLogger	1huhuhuhu
Tag	Scrhuhuhuhu
LogDirectory	Lhuhuhuhu
ServerSignature	NcgTkfhuhuhuhuhuhuhuhuhuhuhu
ServerCertificate	MIIE9Dhuhuhuhuhuhuhuhuhuhuhu
HideLogDirectory	1huhuhuhu
HideLogSubdirectory	0huhuhuhu
UnattendedMod	1huhuhuhu

We extracted this malware's full configuration (C2, credentials, campaign IDs…).

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Name	Value
Module Name	Client
Full Name	Client
EntryPoint	System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::Main(System.String[])
Scope Name	Client
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v4.0.30319
Tables Header Version	512
WinMD Version	<null>
Assembly Name	Client
Assembly Version	1.4.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	.NETFramework,Version=v4.5.2
Total Strings	1552
Main Method	System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::Main(System.String[])
Main IL Instruction Count	19
Main IL	ldc.i4 3072 call System.Void System.Net.ServicePointManager::set_SecurityProtocol(System.Net.SecurityProtocolType) ldc.i4.2 <null> call System.Void System.Windows.Forms.Application::SetUnhandledExceptionMode(System.Windows.Forms.UnhandledExceptionMode) ldnull <null> ldftn System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::䛹뭺ੈᦓ猦⩃銄鱗泞퍫䠱瞰ꔒ�⚤ᕄ愠ꩾ⌟(System.Object,System.Threading.ThreadExceptionEventArgs) newobj System.Void System.Threading.ThreadExceptionEventHandler::.ctor(System.Object,System.IntPtr) call System.Void System.Windows.Forms.Application::add_ThreadException(System.Threading.ThreadExceptionEventHandler) call System.AppDomain System.AppDomain::get_CurrentDomain() ldnull <null> ldftn System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::膄ȋ侮纻변挼臢˦嫶갠∊�뜁躞穴쟃ﰽ(System.Object,System.UnhandledExceptionEventArgs) newobj System.Void System.UnhandledExceptionEventHandler::.ctor(System.Object,System.IntPtr) callvirt System.Void System.AppDomain::add_UnhandledException(System.UnhandledExceptionEventHandler) call System.Void System.Windows.Forms.Application::EnableVisualStyles() ldc.i4.0 <null> call System.Void System.Windows.Forms.Application::SetCompatibleTextRenderingDefault(System.Boolean) newobj System.Void 꾹筢䟬᷉Ⰸ勄퐼㽈䭣坠摨剕귁땤貯폦厙媣::.ctor() call System.Void System.Windows.Forms.Application::Run(System.Windows.Forms.Form) ret <null>
Module Name	Client
Full Name	Client
EntryPoint	System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::Main(System.String[])
Scope Name	Client
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v4.0.30319
Tables Header Version	512
WinMD Version	<null>
Assembly Name	Client
Assembly Version	1.4.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	.NETFramework,Version=v4.5.2
Total Strings	1552
Main Method	System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::Main(System.String[])
Main IL Instruction Count	19
Main IL	ldc.i4 3072 call System.Void System.Net.ServicePointManager::set_SecurityProtocol(System.Net.SecurityProtocolType) ldc.i4.2 <null> call System.Void System.Windows.Forms.Application::SetUnhandledExceptionMode(System.Windows.Forms.UnhandledExceptionMode) ldnull <null> ldftn System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::䛹뭺ੈᦓ猦⩃銄鱗泞퍫䠱瞰ꔒ�⚤ᕄ愠ꩾ⌟(System.Object,System.Threading.ThreadExceptionEventArgs) newobj System.Void System.Threading.ThreadExceptionEventHandler::.ctor(System.Object,System.IntPtr) call System.Void System.Windows.Forms.Application::add_ThreadException(System.Threading.ThreadExceptionEventHandler) call System.AppDomain System.AppDomain::get_CurrentDomain() ldnull <null> ldftn System.Void ⥩�ꈨꝉ엠᪭懅蓰凸㣡噳䇨ꌇ岺ꈃ�矵ℨ::膄ȋ侮纻변挼臢˦嫶갠∊�뜁躞穴쟃ﰽ(System.Object,System.UnhandledExceptionEventArgs) newobj System.Void System.UnhandledExceptionEventHandler::.ctor(System.Object,System.IntPtr) callvirt System.Void System.AppDomain::add_UnhandledException(System.UnhandledExceptionEventHandler) call System.Void System.Windows.Forms.Application::EnableVisualStyles() ldc.i4.0 <null> call System.Void System.Windows.Forms.Application::SetCompatibleTextRenderingDefault(System.Boolean) newobj System.Void 꾹筢䟬᷉Ⰸ勄퐼㽈䭣坠摨剕귁땤貯폦厙媣::.ctor() call System.Void System.Windows.Forms.Application::Run(System.Windows.Forms.Form) ret <null>

CnC CNCmalicious

178.huhuhuhuhuhuhu

Port PORTmalicious

4huhuhuhu

Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.

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