MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5
SHA3-384 hash: b30796dd03d3f2a48352ec618e160c70e151b74735815945f537accd66e33c3e47fad207d282603908c1042b2d4ef8eb
SHA1 hash: 3f28e4a639caa28f798b354db37fd0fba2a5bbdf
MD5 hash: e10ab852df29c5830c3b1016a52bc891
humanhash: double-ohio-lion-montana
File name:uRrXJUbX.exe
Download: download sample
Signature njrat
Create hunting rule
File size:33'280 bytes
First seen:2020-09-12 08:32:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:ofs2wt7hpw1jvhLwnZwc8Mw3ccrfL1ir:pyBZMa1Mw3cafhir
Threatray 13 similar samples on MalwareBazaar
TLSH 72E2094D73A48923C67E47B88E71954207F2814B5522EFAF8EC550DA1DA7BE41E00EF7
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/58754/
Detection(s):
Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

Win.Trojan.Bladabindi-6192388-0
Create hunting rule

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

Win.Dropper.njRAT-7436651-0
Create hunting rule

Win.Packed.Generic-7672854-0
Create hunting rule

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Creating a window
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Creating a file in the mass storage device
Connection attempt to an infection source
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices by creating the autorun.inf autorun file
Enabling a "Do not show hidden files" option
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/464694
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes the view of files in windows explorer (hidden files and folders)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to log keystrokes (.Net Source)
Contains functionality to spread to USB devices (.Net source)
Creates autostart registry keys with suspicious names
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)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284755 Sample: uRrXJUbX.exe Startdate: 12/09/2020 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for dropped file 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 12 other signatures 2->38 8 uRrXJUbX.exe 3 4 2->8         started        11 server.exe 2 2->11         started        13 server.exe 2 2->13         started        15 server.exe 2 2->15         started        process3 file4 28 C:\Users\user\AppData\Roaming\server.exe, PE32 8->28 dropped 17 server.exe 4 5 8->17         started        process5 dnsIp6 30 193.161.193.99, 49764, 53917 BITREE-ASRU Russian Federation 17->30 26 C:\...\3a0f9d82ce17576fd2650fb4ab8898cc.exe, PE32 17->26 dropped 40 Antivirus detection for dropped file 17->40 42 Multi AV Scanner detection for dropped file 17->42 44 Machine Learning detection for dropped file 17->44 46 3 other signatures 17->46 22 netsh.exe 3 17->22         started        file7 signatures8 process9 process10 24 conhost.exe 22->24         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-09-12 08:34:07 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zuatgb3lwjmu2awmdkpppf3m4qian26gbr7yjnskqgm3jaa7f3cq._file
Verdict:
malicious
Similar samples:
00b11363c9cd9f5e944789c5c8c8f190cb8952e572fcad351c10a0ffe4809765
njrat
08da1c7771ae637a3b09d9d636b97d6cefdd1794fe3de4ade9b676188e057370
njrat
139440ea99f0fdb275e96e8b749b64ca0528468f3b243bee6ada39b6db6327ac
njrat
14ba5f94a671a38e16b5166ebca44ddacd6fde3226015676f9c369c992b5d2f8
njrat
21ac08fc21c99e9c3522c3555adc2e54fdada5297deda9f00304694a47e1a9e6
njrat
2b942243439c92b4921032a08567d76c0baff766661083fe8f6a9ab66966926d
njrat
2c46535200a9f6a3e9b5c0553cf2e94f939bf264bf3a29aa92b7c3fb13997287
njrat
2e71e2197518ae4077d0968f2f666635d9a1f822802aca08f092f488629d900b
njrat
af21243da675a515c8e2ca9d00b5628c1201125b1a29d46a9df0cb0b63769942
njrat
b8b65fac514cb8b167eee1426b292e00506d347a5269a17bc76a4c9f28323b98
njrat
+ 3 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/200912-zf99yhpl7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Adds Run key to start application
Adds Run key to start application
Drops startup file
Loads dropped DLL
Drops startup file
Executes dropped EXE
Modifies Windows Firewall
Executes dropped EXE
Modifies Windows Firewall
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/cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5

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:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter
Description:Identify njRat

File information

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

Web download

njrat

Executable exe cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5

(this sample)

  
Link
https://www.virustotal.com/gui/file/cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/58754/

Comments