MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150
SHA3-384 hash: 6bb8a8f79d864e476a13158ba438551a09f3522090819bec2f936896636af4895367b433cbf99605cb85cab61eac60e9
SHA1 hash: d2a3c06e03692a9a98bccb65446ae6d7ff2164a9
MD5 hash: b0a43598ad5a48a9c244f9d52135dcbd
humanhash: seven-georgia-alaska-lion
File name:7RRJrxGc.exe
Download: download sample
Signature njrat
Create hunting rule
File size:44'032 bytes
First seen:2021-07-17 18:57:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:SZyCd2MOGVK725yGt8izzLEf/EdSSszUIij+ZsNO3PlpJKkkjh/TzF7pWndG/gra:gBcCwG/zLuomuXQ/od3+L
Threatray 86 similar samples on MalwareBazaar
TLSH T1F613D68CB694E174D5FF8BF1B4A2B2890B70A01B9912D30F99F154D94F73AC09611EE7
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7RRJrxGc.exe
Verdict:
Suspicious activity
Analysis date:
2021-07-17 19:00:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c2aa1f20-9fac-4d94-9126-87e872ba7322

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/172364/
Detection(s):
Win.Packed.Krypt-6888233-0
Create hunting rule

Win.Packed.Generic-7672855-0
Create hunting rule

Win.Packed.njRAT-7672853-1
Create hunting rule

Win.Packed.Msilperseus-9220094-0
Create hunting rule

Win.Packed.Generic-9795615-0
Create hunting rule

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

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/9ad26ecc-bd48-4615-915c-4c4b416523f5
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/817859
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected njRat
Drops PE files to the startup folder
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2018-09-17 09:09:05 UTC
AV detection:
36 of 45 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m23yaho2alajmdnxzuqjbazjh364mztjkuwwal5hjs2grofucfia._file
Verdict:
unknown
Similar samples:
044863910e84822872c6a9d134f18db1e04b17f2641f0baa7c3aca4f5f587fbb
njrat
06aba312b446bf01180d633c94686c5ab2d102d40156b5cd9a9255cc6fd5b69c
njrat
36157bcd02a5c23a3d161cef0e3aacc07c73e91e0a98cfb9f68852d144d43404
njrat
4a5d2a74803de9f7a73d47ada67ab4e03a466e4bef5dc12ca5ba35343b9a0500
njrat
5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1
njrat
9765d205b8b16a05e807f239217a734f37a1d7b263a116ee336d39688bb2ce58
njrat
b0e356c5dd0e348f26c45a9b403edd9e8114a0a7152dd3f0dce7a297f6e597eb
njrat
b71723aa5fc1153d43c609e12a68182f8d5216b9bfde70a3342562ffe59867a3
njrat
be3acd23cffe0baa73da9501728b70240077320fe57f729e46111e06ef67f2ef
njrat
dc8ddcd4db035fa647001a01cab6a2866d092fcaad18279835751ee0396da041
njrat
+ 76 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/210717-yqkcjpqa5e/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150
MD5 hash:
b0a43598ad5a48a9c244f9d52135dcbd
SHA1 hash:
d2a3c06e03692a9a98bccb65446ae6d7ff2164a9
Link:
https://www.unpac.me/results/1cba5f95-65bd-4445-9915-60a68ce83746/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.88
Link:
https://yomi.yoroi.company/submissions/66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150

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
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
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_LightDefender_Njrat_Rule
Create hunting rule
Author:Skystars LightDefender
Description:Detects Njrat
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 66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150

(this sample)

  
Link
https://www.virustotal.com/gui/file/66b7801dda02c0960db7cd209083293efdc66669552d602fa74cb468b8b41150/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/172364/

Comments