njRat PE Executable malware analysis – 5628f16de5cd

Ctrl + scroll to zoom · drag to pan

Get an AI-generated breakdown of this malware's behaviour, IOCs and recommendations.

AI analysis is available with Essential.

Unlock with Essential

File

Type

Portable Executable 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

Very low

3 malicious · 10 files

EXE5628f16de5cd1e8a9a4401eac7b1e3b0njRat

Structure

BINResources

BIN.Net Resources

BINfiles.resourcesXWorm

IMGjZqlPomNkc

EXEupVxZzHoPVnjRat

Structure

BINResources

Config. Field	Value
Mutex	kQzLahuhuhuhuhuhuhu
Hosts	45.1huhuhuhuhuhuhu
Port	4huhuhuhu
KEY	<6huhuhuhu
USBNM	<XWhuhuhuhu
LoggerPath	%Phuhuhuhu
family	xhuhuhuhu

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

Unlock with Essential

Name	Value
Module Name	img.Scr
Full Name	img.Scr
EntryPoint	System.Void Bound.Open::Main()
Scope Name	img.Scr
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v2.0.50727
Tables Header Version	512
WinMD Version	<null>
Assembly Name	img
Assembly Version	0.0.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	7
Main Method	System.Void Bound.Open::Main()
Main IL Instruction Count	43
Main IL	ldstr files call System.Reflection.Assembly System.Reflection.Assembly::GetExecutingAssembly() newobj System.Void System.Resources.ResourceManager::.ctor(System.String,System.Reflection.Assembly) stloc.0 <null> ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr YzcuazCpPa.exe call System.String System.String::Concat(System.String,System.String) ldloc.0 <null> ldstr upVxZzHoPV callvirt System.Object System.Resources.ResourceManager::GetObject(System.String) castclass System.Byte[] call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr YzcuazCpPa.exe call System.String System.String::Concat(System.String,System.String) call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr TAWGP_zYGl.png call System.String System.String::Concat(System.String,System.String) ldloc.0 <null> ldstr jZqlPomNkc callvirt System.Object System.Resources.ResourceManager::GetObject(System.String) castclass System.Byte[] call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr TAWGP_zYGl.png call System.String System.String::Concat(System.String,System.String) call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> leave.s IL_00A0: ret stloc.1 <null> ldloc.1 <null> callvirt System.String System.Exception::get_Message() call System.Void System.Console::WriteLine(System.String) call System.Int32 System.Console::Read() pop <null> leave.s IL_00A0: ret ret <null>
Module Name	img.Scr
Full Name	img.Scr
EntryPoint	System.Void Bound.Open::Main()
Scope Name	img.Scr
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v2.0.50727
Tables Header Version	512
WinMD Version	<null>
Assembly Name	img
Assembly Version	0.0.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	7
Main Method	System.Void Bound.Open::Main()
Main IL Instruction Count	43
Main IL	ldstr files call System.Reflection.Assembly System.Reflection.Assembly::GetExecutingAssembly() newobj System.Void System.Resources.ResourceManager::.ctor(System.String,System.Reflection.Assembly) stloc.0 <null> ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr YzcuazCpPa.exe call System.String System.String::Concat(System.String,System.String) ldloc.0 <null> ldstr upVxZzHoPV callvirt System.Object System.Resources.ResourceManager::GetObject(System.String) castclass System.Byte[] call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr YzcuazCpPa.exe call System.String System.String::Concat(System.String,System.String) call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr TAWGP_zYGl.png call System.String System.String::Concat(System.String,System.String) ldloc.0 <null> ldstr jZqlPomNkc callvirt System.Object System.Resources.ResourceManager::GetObject(System.String) castclass System.Byte[] call System.Void System.IO.File::WriteAllBytes(System.String,System.Byte[]) ldc.i4.s 28 call System.String System.Environment::GetFolderPath(System.Environment/SpecialFolder) ldstr TAWGP_zYGl.png call System.String System.String::Concat(System.String,System.String) call System.Diagnostics.Process System.Diagnostics.Process::Start(System.String) pop <null> leave.s IL_00A0: ret stloc.1 <null> ldloc.1 <null> callvirt System.String System.Exception::get_Message() call System.Void System.Console::WriteLine(System.String) call System.Int32 System.Console::Read() pop <null> leave.s IL_00A0: ret ret <null>

Mutex MUTEXmalicious

kQzLahuhuhuhuhuhuhu

CnC CNCmalicious

45.1huhuhuhuhuhuhu

Port PORTmalicious

4huhuhuhu

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

Unlock with Essential