MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f22307cd1f4cf705822ec4dc19bbda70f9c754a3277971faf57d648908b721bc. 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: 16


Intelligence 16 IOCs 1 YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f22307cd1f4cf705822ec4dc19bbda70f9c754a3277971faf57d648908b721bc
SHA3-384 hash: dd7af19fcd602224078763e2f6e19d99ea34dfe7eb53c4023bd9f88f19cf452e50f8a5681facf7a5c69fb8dc865fd1ff
SHA1 hash: 349045b95761e4b802233e0c49a2c559971ceeb7
MD5 hash: 5b392b1fbc49237d2d151a3c1a76918b
humanhash: robert-romeo-burger-five
File name:5b392b1fbc49237d2d151a3c1a76918b.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2024-07-27 13:20:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'855 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 384:c8nq1rCiMH3jBVbJsy8P5MbAoxv/vvQ6kxOrAF+rMRTyN/0L+EcoinblneHQM3em:Xn9bJP8P5AAiH1kErM+rMRa8NuYbt
TLSH T13E033A4D7FE18568D4FD067706B2D41207BAE14B6E23DD0E8EE664AA37636C08B50EF1
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
147.185.221.21:31388

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
147.185.221.21:31388 https://threatfox.abuse.ch/ioc/1303206/

Intelligence

File Origin
# of uploads :
1
# of downloads :
457
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29039.UNOFFICIAL
Create hunting rule

Win.Packed.Bladabindi-7994427-0
Create hunting rule

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

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

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a4f44446f80f37dcaa7ce5
Tags:
Execution Network Spreading Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a process with a hidden window
Enabling the 'hidden' option for analyzed file
Creating a file
Enabling the 'hidden' option for recently created files
Creating a window
Searching for synchronization primitives
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi cmd explorer fingerprint keylogger lolbin netsh njrat rat stealer vbnet
Link:
https://www.filescan.io/uploads/66a4f4444c5c17942a7ed3b4/reports/fd6c9d62-57fa-46ce-83b2-804dc1b90fcb/overview
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:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5c8be505-f624-48bc-9d6b-75870cde02e9
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1483446
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
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Creates autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Drops PE files with benign system names
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: Drops fake system file at system root drive
Sigma detected: Files With System Process Name In Unsuspected Locations
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f22307cd1f4cf705822ec4dc19bbda70f9c754a3277971faf57d648908b721bc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f22307cd1f4cf705822ec4dc19bbda70f9c754a3277971faf57d648908b721bc/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-07-24 16:35:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6irqpti7jt3qlaroytobto62od44ovfde54xd6xvpvsiscfxeg6a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked discovery evasion persistence privilege_escalation
Link:
https://tria.ge/reports/240727-qlnvtavalc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops autorun.inf file
Adds Run key to start application
Drops startup file
Modifies Windows Firewall
Malware Config
C2 Extraction:
insurance-helmet.gl.at.ply.gg:31388
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dca19543-7d68-462f-8baa-8a416295bb4d
Unpacked files
SH256 hash:
f22307cd1f4cf705822ec4dc19bbda70f9c754a3277971faf57d648908b721bc
MD5 hash:
5b392b1fbc49237d2d151a3c1a76918b
SHA1 hash:
349045b95761e4b802233e0c49a2c559971ceeb7
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/6a661086-6f1f-4ab9-afae-504e2bc30eca/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f22307cd1f4c/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/f22307cd1f4cf705822ec4dc19bbda70f9c754a3277971faf57d648908b721bc

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

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

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 (HIGH_ENTROPY_VA)high

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