MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f2357461e61502b9c25c60017ff806638e7342479a9ddc46dcfd4eb633d14b4. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f2357461e61502b9c25c60017ff806638e7342479a9ddc46dcfd4eb633d14b4
SHA3-384 hash: 2bb3b3cbf459b7ca00679bf8759a52df3e896bf6c59a187aec4e948c0a203f3339dd3c1301490a73a259645c63a11599
SHA1 hash: 049ddc918139b0467c36ac71932f02aeac6c983e
MD5 hash: 40755d5e32a35c44dff419ce223693bb
humanhash: river-kilo-apart-india
File name:jKmW3m7u.exe
Download: download sample
Signature njrat
Create hunting rule
File size:44'032 bytes
First seen:2020-09-15 18:47:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:NZysDYolYxOoyi025iQKGMlo8FQDa9D9O5UE5QzwBlpJNakkjh/TzF7pWnSgreTr:n+ouIli00izjoaUvQO+p+L
Threatray 15 similar samples on MalwareBazaar
TLSH BB13F78CB784E174D5FF8BF1A492B2990B71901BA806D30F99F154DD8BB3AC09611EE7
Reporter pmelson
Tags:exe NjRAT Njratgold

Intelligence

File Origin
# of uploads :
1
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/60871/
Detection(s):
Win.Trojan.Generic-6417450-0
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Enabling the 'hidden' option for analyzed file
Sending a UDP request
Creating a window
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/467058
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
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
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8f2357461e61502b9c25c60017ff806638e7342479a9ddc46dcfd4eb633d14b4/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-09-15 18:49:07 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4rvorq6mficxhbfyyabp74amy4oonbepgu53rdnz7kowyz5cs2a._file
Verdict:
malicious
Similar samples:
04a4d40515b77903bb9472b01aaf951f059236999665e847a660ed99d929b78b
njrat
28f39e656758b6c40db049e40bbfe958a7a20a754ea6531ccca3e4fdb8dcc66a
njrat
5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1
njrat
83fda1582e8aa614098d944606a562589f0880c105ef011b0e8b68bf90354da3
njrat
87c0e0f48bb2599f74c15f8f9e4d3bc96befad82a33de62f89d3bc76d546d8cd
njrat
9ae3d2baf3c382b46b56e3e50547bd83bd1d6cc85f82aadaf2281a1b404e5fa0
njrat
b3ea819ddfabf3e2060d9f8116e0952654d5bcdb5716f84ad142a6ab979b521a
njrat
c2a645b457a4ba814aa0c116f2a501176531ce29d32a695c45c5022d6aabb271
njrat
c6d93ae492f6a2b687c64cc388cf0a483f44428b843c5b384c156f018a2cf63c
njrat
e2136c8268bb5be4fe2a295a9bb9250c00437452cd3d65822290e3a68b1fb94b
njrat
+ 5 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/200915-g25sx2qsze/
Behaviour
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Adds Run key to start application
Adds Run key to start application
Drops startup file
Drops startup file
Executes dropped EXE
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8f2357461e61502b9c25c60017ff806638e7342479a9ddc46dcfd4eb633d14b4

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

File information

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

Web download

njrat

Executable exe 8f2357461e61502b9c25c60017ff806638e7342479a9ddc46dcfd4eb633d14b4

(this sample)

  
Link
https://www.virustotal.com/gui/file/8f2357461e61502b9c25c60017ff806638e7342479a9ddc46dcfd4eb633d14b4/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/60871/

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