njRat PE Executable malware analysis – dc671f4db3cd

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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

EXEdc671f4db3cd24bba4c045474b0ae6dcnjRat

Structure

BINResources

BIN.Net Resources

Config. Field	Value
packet_size [b]	5huhuhuhu
BD [BD]	Fhuhuhuhu
directory [DR]	Thuhuhuhu
executable_name [EXE]	Dllhuhuhuhu
icn	#huhuhuhu
is_dir_defined [Idr]	Fhuhuhuhu
is_startup_folder [IsF]	Fhuhuhuhu
RegistrySt	Fhuhuhuhu
cnc_port [P]	6huhuhuhu
xDlol1	Javhuhuhuhu
Sleep	Fhuhuhuhu
Sleep1	1huhuhuhu
reg_key [RG]	Windhuhuhuhuhuhuhu
task [Task]	Fhuhuhuhu
reg_path [sf]	Softwahuhuhuhuhuhuhuhuhuhuhu
Hide	Fhuhuhuhu
HP	Thuhuhuhu
SPR	fhuhuhuhu
victim_name [VN]	Hahuhuhuhu
version [VR]	Njrat huhuhuhuhuhuhuhuhuhuhu
splitter [Y]	\|Hhuhuhuhu

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

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Name	Value
Module Name	Stub.exe
Full Name	Stub.exe
EntryPoint	System.Void Stub.OK.j.A::main()
Scope Name	Stub.exe
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v2.0.50727
Tables Header Version	512
WinMD Version	<null>
Assembly Name	Stub
Assembly Version	1.0.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	436
Main Method	System.Void Stub.OK.j.A::main()
Main IL Instruction Count	20
Main IL	ldc.i4.1 <null> stsfld System.Boolean Stub.OK.j.A::runx ldnull <null> ldftn System.Void Stub.OK.j.A::timx_run() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stsfld System.Threading.Thread Stub.OK.j.A::thx ldsfld System.Threading.Thread Stub.OK.j.A::thx callvirt System.Void System.Threading.Thread::Start() ldc.i4.1 <null> stsfld System.Boolean Stub.OK.j.A::runy ldnull <null> ldftn System.Void Stub.OK.j.A::timy_run() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stsfld System.Threading.Thread Stub.OK.j.A::thy ldsfld System.Threading.Thread Stub.OK.j.A::thy callvirt System.Void System.Threading.Thread::Start() call System.Void Stub.OK.j.OK::ko() ret <null>
Module Name	Stub.exe
Full Name	Stub.exe
EntryPoint	System.Void Stub.OK.j.A::main()
Scope Name	Stub.exe
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v2.0.50727
Tables Header Version	512
WinMD Version	<null>
Assembly Name	Stub
Assembly Version	1.0.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	436
Main Method	System.Void Stub.OK.j.A::main()
Main IL Instruction Count	20
Main IL	ldc.i4.1 <null> stsfld System.Boolean Stub.OK.j.A::runx ldnull <null> ldftn System.Void Stub.OK.j.A::timx_run() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stsfld System.Threading.Thread Stub.OK.j.A::thx ldsfld System.Threading.Thread Stub.OK.j.A::thx callvirt System.Void System.Threading.Thread::Start() ldc.i4.1 <null> stsfld System.Boolean Stub.OK.j.A::runy ldnull <null> ldftn System.Void Stub.OK.j.A::timy_run() newobj System.Void System.Threading.ThreadStart::.ctor(System.Object,System.IntPtr) newobj System.Void System.Threading.Thread::.ctor(System.Threading.ThreadStart) stsfld System.Threading.Thread Stub.OK.j.A::thy ldsfld System.Threading.Thread Stub.OK.j.A::thy callvirt System.Void System.Threading.Thread::Start() call System.Void Stub.OK.j.OK::ko() ret <null>

Port PORTmalicious

6huhuhuhu

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