MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

njrat

Vendor detections: 20

Intelligence 20 IOCs YARA 9 File information Comments

SHA256 hash:	8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d
SHA3-384 hash:	3bbcc31dc7ac5a5f73c40c1783a0c64e38452c8383167f2ee2322596db701c64393f9f7cc6a3b1271f495bea05d7a1a1
SHA1 hash:	bd75c33463a13b0cd6a7f30cea982780028bc684
MD5 hash:	08ca7124c1476f37f8f3b233cd5ac053
humanhash:	uranus-uniform-one-pasta
File name:	1728030485fea430d89f9ebcbd1dcb9e91ade709eafcac45161d4c1f33a45cf4b8672063c5421.dat-decoded
Download:	download sample
Signature	njrat Create hunting rule
File size:	32'768 bytes
First seen:	2024-10-04 08:28:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'859 x AgentTesla, 19'789 x Formbook, 12'305 x SnakeKeylogger)
ssdeep	384:10bUe5XB4e0XLO3KiaXLilpknD+WTetTUFQqz9bObbS:WT9BuypaXWlZJbS
Threatray	954 similar samples on MalwareBazaar
TLSH	T130E2F84677B58219C6BC5AFC8CB313110772E3438432EBAF5CDC98CA5B676D04245EEA
TrID	51.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 22.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 7.4% (.EXE) Win64 Executable (generic) (10523/12/4) 4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
Reporter	abuse_ch
Tags:	base64-decoded exe NjRAT

abuse_ch

Malware dropped as base64 encoded payload

Intelligence

File Origin

# of uploads :

# of downloads :

416

Origin country :

Vendor Threat Intelligence

Malware family:

njrat

ID:

File name:

1728030485fea430d89f9ebcbd1dcb9e91ade709eafcac45161d4c1f33a45cf4b8672063c5421.dat-decoded

Verdict:

Malicious activity

Analysis date:

2024-10-04 08:29:41 UTC

Tags:

njrat

Link:

https://app.any.run/tasks/e3505de1-9534-4fff-8c02-32ec1e029bb6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

Win.Packed.njRAT-7445143-0

Win.Dropper.Detected-9941784-0

Win.Dropper.Nanocore-10030076-0

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66ffa750780a9b632d22cb55

Tags:

Bladabindi Dropper Micro Msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Creating a window

Searching for synchronization primitives

DNS request

Connection attempt

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

backdoor cmd keylogger lolbin njrat rat vbnet

Link:

https://www.filescan.io/uploads/66ffa7547cc22997e797fc80/reports/532c4874-f555-4672-a614-a21149a095ba/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

njRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b4ba1fa0-0bba-4317-863a-1b97dbe837fe

Result

Threat name:

Njrat

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1525488

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Uses dynamic DNS services

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d/

Threat name:

ByteCode-MSIL.Backdoor.njRAT

Status:

Malicious

First seen:

2024-10-04 02:44:57 UTC

File Type:

PE (.Net Exe)

AV detection:

36 of 38 (94.74%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rxugacykrdryo63h6iehhltbxvvthgff7a363y2z4wfqnmy4pzgq._file

Verdict:

malicious

Label(s):

njrat

3f24a0243264894973daaddd665b311850024f99a47f935ca6ecba0d95f5f283

njrat

4e5ded274678eb23a00ebdd9c03de6d04467a6452275ce76f0224a067f241917

njrat

8e9629451b8a090834f96bd6688184ad7a18aacd33784193f273c7796e3c01b3

njrat

91b1b82d19155a4028599299e72779af33147ef437bbe72055550fe8315ce8db

njrat

928fa2abb515bdef1c998054997b1d16b4030dfeee4640b3bd2508e43bea06a5

njrat

cabefcbafeb635832ee95c34da10993a8e47231de1bae661d3448e5ddd7aa2f3

njrat

error

njrat

+ 944 additional samples on MalwareBazaar

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:nyan cat discovery

Link:

https://tria.ge/reports/241004-kdj9rsyang/

Behaviour

Suspicious use of AdjustPrivilegeToken

System Location Discovery: System Language Discovery

Malware Config

C2 Extraction:

02oct.duckdns.org:9001

Verdict:

Malicious

Tags:

njrat njrat

YARA:

n/a

Link:

https://app.threat.zone/submission/c8ef8ae4-5996-4d05-bc85-e46d4acc5600

Unpacked files

SH256 hash:

8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d

MD5 hash:

08ca7124c1476f37f8f3b233cd5ac053

SHA1 hash:

bd75c33463a13b0cd6a7f30cea982780028bc684

Detections:

win_njrat

Link:

https://www.unpac.me/results/c0544910-2ca3-4227-866a-b10a07e4ff78/

Malware family:

njRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8de8600b0a88/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	ByteCode_MSIL_Backdoor_NjRAT Create hunting rule
Author:	ReversingLabs
Description:	Yara rule that detects NjRAT backdoor.

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	njrat_v1 Create hunting rule
Author:	RandomMalware

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	win_njrat_bytecodes_V2_oct_2023 Create hunting rule
Author:	Matthew @ Embee_Research

Rule name:	yarahub_win_njrat_bytecodes_V2_oct_2023 Create hunting rule
Author:	Matthew @ Embee_Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

fea430d89f9ebcbd1dcb9e91ade709eafcac45161d4c1f33a45cf4b8672063c5

njrat

exe 8de8600b0a88e3877b67f20873ae61bd6b3398a5f837ede359e58b06b31c7e4d

(this sample)

Dropped by

SHA256 fea430d89f9ebcbd1dcb9e91ade709eafcac45161d4c1f33a45cf4b8672063c5

Dropped by

MD5 b00e900c861654e39d4d08643dc4d7f9

URLhaus

https://urlhaus.abuse.ch/url/3209574/

Delivery method

Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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