MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1
SHA3-384 hash: 0d361b5c22c157cf80dc5406719f935a8eb99bf077eacc52b8f3a05892e846a61669d3f224e9041f09a60b51eae7bfcb
SHA1 hash: 3d24f1887026de91986a99d541e88811122cd4c0
MD5 hash: 24c029effbafbaf7542632774e857235
humanhash: purple-wolfram-georgia-nuts
File name:5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1
Download: download sample
Signature njrat
Create hunting rule
File size:111'616 bytes
First seen:2020-07-29 07:16:42 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 1536:EYMmrq5haFuXQQ0HMLIr6T7t83hr8O4vAF886:1NrrO3W6DXvMj6
Threatray 39 similar samples on MalwareBazaar
TLSH A8B3B55BB18261EAC46F4E7B1D80755D6333E52FAA8F163B71F17B899B32284CD01A43
Reporter JAMESWT_WT
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/34344/
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Launching a process
Creating a process with a hidden window
Creating a window
Enabling the 'hidden' option for files in the %temp% directory
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with Startup directory
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/401537
Signature
.NET source code contains potential unpacker
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 253016 Sample: isJeC6INth Startdate: 29/07/2020 Architecture: WINDOWS Score: 76 37 Malicious sample detected (through community Yara rule) 2->37 39 Detected njRat 2->39 41 .NET source code contains potential unpacker 2->41 43 3 other signatures 2->43 8 isJeC6INth.exe 1 3 2->8         started        11 Server.exe 1 2->11         started        14 svcest.exe 2->14         started        16 6 other processes 2->16 process3 file4 31 C:\Users\user\AppData\Local\Temp\svcest.exe, PE32 8->31 dropped 33 C:\Users\user\AppData\...\isJeC6INth.exe.log, ASCII 8->33 dropped 18 svcest.exe 3 4 8->18         started        49 Machine Learning detection for dropped file 11->49 signatures5 process6 dnsIp7 35 130.255.40.205, 49710, 49712, 49713 KAMENSKTEL-ASPobedyStr37bKamensk-UralskyRU Russian Federation 18->35 27 C:\Users\user\AppData\...\Java update.exe, PE32 18->27 dropped 29 C:\Users\user\AppData\Local\Temp\Server.exe, PE32 18->29 dropped 45 Machine Learning detection for dropped file 18->45 47 Drops PE files to the startup folder 18->47 23 schtasks.exe 1 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 01:01:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kj3lleomgudext2vf66wozaw4s4mjqgpzyhaz3d5vfydxxm7zsyq._file
Verdict:
malicious
Similar samples:
04a4d40515b77903bb9472b01aaf951f059236999665e847a660ed99d929b78b
njrat
28f39e656758b6c40db049e40bbfe958a7a20a754ea6531ccca3e4fdb8dcc66a
njrat
610c374d9fcc17102ba7dc8ee3ec5cb569c60d0e86f25b004dfe8d24781f8310
njrat
87c0e0f48bb2599f74c15f8f9e4d3bc96befad82a33de62f89d3bc76d546d8cd
njrat
b4bbfec518b34f417680149af477857ce1a27aa23eaceb4eb99d62230e376ba9
njrat
c2a645b457a4ba814aa0c116f2a501176531ce29d32a695c45c5022d6aabb271
njrat
c6d93ae492f6a2b687c64cc388cf0a483f44428b843c5b384c156f018a2cf63c
njrat
ccefaff00ce5d029e3ac220ce7a0ae2aa4a852c4e7c342910069474469ed78ed
njrat
d6f0bfa0aa9e2b9004d36f51fff20f947adbaa6bbb7fffdde1fc37d105fa7257
njrat
e2136c8268bb5be4fe2a295a9bb9250c00437452cd3d65822290e3a68b1fb94b
njrat
+ 29 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/200729-m2krbz9nxs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Adds Run key to start application
Adds Run key to start application
Loads dropped DLL
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/5276b591cc35064bcf552fbd676416e4b8c4c0cfce0e0cec7da9703bdd9fccb1

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/34344/

Comments