MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6
SHA3-384 hash: 61a8e9f9784996939bdb48e55419586dc43f7e20eb186a58d3c9e584532709d1a65075894eb0090bbe034986872650b1
SHA1 hash: 95b436de53b908fb4aaa8f1f2679dbbee777761a
MD5 hash: 13785043ba4113cda79f68b2a4ef6236
humanhash: violet-july-sink-idaho
File name:bH9v.exe
Download: download sample
Signature njrat
Create hunting rule
File size:32'768 bytes
First seen:2022-11-30 16:07:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 384:W0bUe5XB4e0XLOfOLsw0Q0mS03AWTxtTUFQqzF2ObbR:3T9Buyk555dUbR
Threatray 403 similar samples on MalwareBazaar
TLSH T157E208067BE98215D6BC1AFC8CB313214772E3838532EB6F5CDC88CA4B676D00655EE9
TrID 47.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.4% (.SCR) Windows screen saver (13097/50/3)
6.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bH9v.exe
Verdict:
Malicious activity
Analysis date:
2022-11-30 18:31:21 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c12e37fe-e781-4332-927c-12c108f22f4d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/340623/
Detection(s):
Win.Packed.njRAT-7445143-0
Create hunting rule

Win.Dropper.Detected-9941784-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Sending a custom TCP request
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe greyware njrat packed rat
Link:
https://www.filescan.io/uploads/63877fe58a1bf55a249cbc60/reports/b369a5dc-cd4a-4cd6-b431-6869b5ee530f/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.
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1124188
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-11-30 16:10:39 UTC
File Type:
PE (.Net Exe)
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wbmtteqngwna6lkoanbrvanlp3rtzay7lh2h6vu4zxdhkcqye63a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
07c7268c2f8a736f5c74f9dabfdf5e10c8a4580fdfcf11eaa7e20a88dd52cae8
njrat
20c5e774a278d6bc585aa030df85baeb6e27445b5fe1a34ae48a48898dc8604b
njrat
6aeec6592d3fe400a3523bf0a93d6d0b718bdcdc8c6fc6769cf39ff1a7a9535a
njrat
73489b558cbcf01f2bda533f372c0dfed9c225f789b17a109b76a52b99413fb0
njrat
891ba441c920eedb471ac09b6bc60f5694a8795f53813a8158da2bf35a0b54a6
njrat
b047ecd482ba7616d02b58a9f77cf558a8fbc5394fceee88082be6a5677229f9
njrat
b0eeb379c674f6caf454b18af219a5916889a33fddf5b7826c4d981a232d043d
njrat
b10fddacee9920ac4bd5bfdd19e07124e2830b0974c080ee64abaf9626602be1
njrat
cbc4c00395ee3d24d1f5a1dd64cfb0b74648f0371a0665287dd8108181e7668b
njrat
e31d4e1ec7e040af6d1964976234a3f8da61d12664fe4c85c768348fafcdb614
njrat
+ 393 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:nyan cat
Link:
https://tria.ge/reports/221130-tk987see99/
Behaviour
Suspicious use of AdjustPrivilegeToken
Malware Config
C2 Extraction:
windowsii.duckdns.org:5552
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ad8c1be5-f384-494c-8285-f87600e7e601
Unpacked files
SH256 hash:
b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6
MD5 hash:
13785043ba4113cda79f68b2a4ef6236
SHA1 hash:
95b436de53b908fb4aaa8f1f2679dbbee777761a
Link:
https://www.unpac.me/results/1fb75dd6-f192-4eab-b0d1-015df5f756b9/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b05939920d35/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6

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

File information

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

Web download

njrat

Executable exe b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6

(this sample)

  
Link
https://www.virustotal.com/gui/file/b05939920d359a0f2d4e03431a81ab7ee33c831f59f47f569ccdc6750a1827b6/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/340623/

Comments