njRat PE Executable malware analysis – 31c37ff61aa3

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File

Size

37.89 KB · 37,888 B

First seen

2026-06-29 18:46 · 4 months ago

Last seen

2026-06-29 18:46 · 4 months ago

Last analysis

2026-06-30 19:00 · 3 months ago

Hashes

MD5 744e1221f6467d0b7e73a10f52e6cd6c Sha1 33e85ae9412fa870e5d6de31502e7d48c64ce224 Sha256 31c37ff61aa322192236c9672f09e3d97b6e6e09c5019077df7d0567d4c0b48b Sha384 149b363a9157d2218222ecb1c12b587ea214fb99252ab1905767a59a7fc8e344b42d4b595d212d617875f443ad4f31c1 Sha512 704389db8c842344a21c4563f1154b57bf208466083b1fded330c4f53b7931fdb216e1e8dada0733729f8ac7aebf1047e77d7c96d2b6950b7bc69872b93a90de SSDeep 384:6yTMUiDHblmJEpRGyEfBffXuKCYyEAnrAF+rMRTyN/0L+EcoinblneHQM3epzXGd:fTqHpR9EfBfWKClEOrM+rMRa8NuoXt TLSH 0F03294D7FE18168C5FD057B05B2D41207BBE04B6E23D90E8EF564AA37636C18B94AF2

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 · 2 files

EXE744e1221f6467d0b7e73a10f52e6cd6cnjRat

Structure

BINResources

Config. Field	Value
packet_size [b]	5huhuhuhu
BD [BD]	Thuhuhuhu
directory [DR]	Aphuhuhuhu
executable_name [EXE]	saahuhuhuhu
cnc_host [HH]	5.tcphuhuhuhuhuhuhu
is_dir_defined [Idr]	Thuhuhuhu
is_startup_folder [IsF]	Thuhuhuhu
is_user_reg [Isu]	Thuhuhuhu
NH [NH]	0huhuhuhu
cnc_port [P]	1huhuhuhu
reg_key [RG]	d8c514huhuhuhuhuhuhuhuhuhuhu
reg_path [sf]	Softwahuhuhuhuhuhuhuhuhuhuhu
sizk	2huhuhuhu
victim_name [VN]	Hahuhuhuhu
version [VR]	ihuhuhuhu
splitter [Y]	\|huhuhuhu
HD	Thuhuhuhu
anti [anti]	Exsahuhuhuhu
anti2 [anti2]	Fhuhuhuhu
usb [usb]	Thuhuhuhu
usbx [usbx]	svchuhuhuhu
task [task]	Thuhuhuhu

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

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Name	Value
Module Name	w.exe
Full Name	w.exe
EntryPoint	System.Void w.A::main()
Scope Name	w.exe
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v2.0.50727
Tables Header Version	512
WinMD Version	<null>
Assembly Name	w
Assembly Version	0.0.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	338
Main Method	System.Void w.A::main()
Main IL Instruction Count	5
Main IL	`nop <null> call System.Void w.OK::ko() nop <null> nop <null> ret <null>`
Module Name	w.exe
Full Name	w.exe
EntryPoint	System.Void w.A::main()
Scope Name	w.exe
Scope Type	ModuleDef
Kind	Windows
Runtime Version	v2.0.50727
Tables Header Version	512
WinMD Version	<null>
Assembly Name	w
Assembly Version	0.0.0.0
Assembly Culture	<null>
Has PublicKey	False
PublicKey Token	<null>
Target Framework	<null>
Total Strings	338
Main Method	System.Void w.A::main()
Main IL Instruction Count	5
Main IL	`nop <null> call System.Void w.OK::ko() nop <null> nop <null> ret <null>`

Port PORTmalicious

1huhuhuhu

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