MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e. 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: 17


Intelligence 17 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e
SHA3-384 hash: d017e2d6d411db0196c4694384298b0bac3046386ac4171feb612285ae4da7eb06ab6b18ad6f26d98f4f90cc53958022
SHA1 hash: 965291a6f60d6141b76288f5de8ac8af2857b3fb
MD5 hash: 63166f4636e5156006b25b214f8708ca
humanhash: aspen-music-virginia-pasta
File name:ExeFile (38).exe
Download: download sample
Signature njrat
Create hunting rule
File size:27'136 bytes
First seen:2024-08-20 14:13:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'861 x AgentTesla, 19'793 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 768:XjjptCnpgZ6R//jf4nqvyj5J7BoIDbj8I:XjdtCnpgwZzDvypoIDEI
Threatray 5 similar samples on MalwareBazaar
TLSH T14CC24C997BA5A537C1FE4E741A76D32042B1F2039A15EB5E1CC910EF9B23AC05AC1DF2
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter byMattii1234
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
151
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
ExeFile (38).exe
Verdict:
Malicious activity
Analysis date:
2024-08-20 16:50:11 UTC
Tags:
rat njrat bladabindi pastebin
Link:
https://app.any.run/tasks/47a6a397-6104-4b8c-aa43-c21cfffa2738

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.njRAT-10015886-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c4a4e0e7ff3f5a063ba0ff
Tags:
Network Static Stealth Njrat
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi njrat rat razy revetrat vbnet
Link:
https://www.filescan.io/uploads/66c4a4bca2e3279d6c82bad9/reports/ae7d37bb-e34f-4c80-ab8d-a7bf021be3cb/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ba228ec6-c4b7-456c-8656-812cf44a4f34
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1495885
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Connects to a pastebin service (likely for C&C)
Disables zone checking for all users
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2020-11-04 01:45:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6r4xehdvhfpp2gb5re4kp6cjcsjgldc4oqvxh67sfeyfbiw6cr7a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
04f8a1b4eb1d14869a2651fd147e3a2bd4b38feabd08cb2922731194e9b46abf
njrat
5faf2c82224567323cd58b2ce04554de259289b5f13a06534dc8678652561f22
njrat
a12471ce87a68c1eff6571727db21d9abf701e4b9788c6ebbc2d668a15998036
njrat
d823be7dcf0a0a9b5dfe71e5450e0dcae985aa2e5db17d54688afe1a9b6b7fc0
njrat
e6edabb3c879a7ad14ea080f665f753cfbb2ca7f9f477440fbd9ad2f1e5811d8
njrat
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://tria.ge/reports/240820-rjthyszfjp/
Behaviour
Suspicious use of AdjustPrivilegeToken
Legitimate hosting services abused for malware hosting/C2
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6ba85c73-13ba-4572-b576-cb1ae5a57f11
Unpacked files
SH256 hash:
f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e
MD5 hash:
63166f4636e5156006b25b214f8708ca
SHA1 hash:
965291a6f60d6141b76288f5de8ac8af2857b3fb
Detections:
Njrat
Create hunting rule
CN_disclosed_20180208_c
Create hunting rule
Unknown_Malware_Sample_Jul17_2
Create hunting rule
Link:
https://www.unpac.me/results/8fa66921-3d31-4aa7-8b9c-5ad30f85e014/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f479721c7539/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e

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:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:INDICATOR_SUSPICIOUS_EXE_RawPaste_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables (downlaoders) containing URLs to raw contents of a paste
Rule name:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:NET
Create hunting rule
Author:malware-lu
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Unknown_Malware_Sample_Jul17_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects unknown malware sample with pastebin RAW URL
Reference:https://goo.gl/iqH8CK
Rule name:Unknown_Malware_Sample_Jul17_2_RID326D
Create hunting rule
Author:Florian Roth
Description:Detects unknown malware sample with pastebin RAW URL
Reference:https://goo.gl/iqH8CK
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security

File information

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

Web download

njrat

Executable exe f479721c75395efd183d8938a7f8491492658c5c742b73fbf2293050a2de147e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/937594/
  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments