MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4
SHA3-384 hash: f19f8f01280d8272a0f82e5b4ad52ee6138f293e703f5d505a83018bb30cd9a650ca058cb677e23788f67260c029a7b2
SHA1 hash: be9a7223747a1b70895302133b2e4868a82e74e3
MD5 hash: b7f5f198a981cee4daddb7139f231436
humanhash: music-oscar-two-beryllium
File name:ErdS9XEU.exe
Download: download sample
Signature njrat
Create hunting rule
File size:24'064 bytes
First seen:2020-11-20 18:32:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:BvpMKFYuEEhERvoBG16Xuy0MHNw6Tg1Y+75JTFmRvR6JZlbw8hqIusZzZTa7:BvCW4V6+yDRpcnuGU
Threatray 515 similar samples on MalwareBazaar
TLSH 3CB22A0E3FA98856C5BC1B7486A5965003B491870413EF2FCDC554CBAFB3AD91D4CAF9
Reporter pmelson
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
496
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Creating a window
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/544414
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
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
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)
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 dnsIp2 2 Behavior Graph ID: 321306 Sample: ErdS9XEU.exe Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 33 g.msn.com 2->33 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for dropped file 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 11 other signatures 2->45 9 ErdS9XEU.exe 1 5 2->9         started        12 EspFivem.exe 3 2->12         started        14 EspFivem.exe 2 2->14         started        16 EspFivem.exe 2 2->16         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...spFivem.exe, PE32 9->29 dropped 31 C:\Users\user\AppData\...rdS9XEU.exe.log, ASCII 9->31 dropped 18 EspFivem.exe 4 5 9->18         started        process6 dnsIp7 35 njrat93.hopto.org 81.249.236.18, 5554 FranceTelecom-OrangeFR France 18->35 37 192.168.2.1 unknown unknown 18->37 27 C:\...\922bd43c3c9463391bee6d7111ec98ad.exe, PE32 18->27 dropped 47 Antivirus detection for dropped file 18->47 49 Multi AV Scanner detection for dropped file 18->49 51 Machine Learning detection for dropped file 18->51 53 2 other signatures 18->53 23 netsh.exe 1 3 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-11-20 18:33:04 UTC
AV detection:
27 of 28 (96.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f5onnmatuuwbsrttsvknmtzv6cxwpebfovocdembcbcygpj446sa._file
Verdict:
malicious
Similar samples:
137d03d974474c2998492be7b2d57fd1c7091e987bef4f1cd39ce7cf5a019fbe
njrat
4d742fd1047a6a9d019de5deceaae8896d5cee545392b37afab84d29efdcb470
njrat
585b9a5e3aac2aa59c5741bc7f56029aeea7c00dd870dc6064f856c84bc70262
njrat
975d36217950a31fa9591d0ad5236f8817f4f51c5d23f01e88c5684dd197cb15
njrat
a0a3915436586816ac0de5463d4c20c6bcb289326ef04999a1ef2c5f1723c86f
njrat
bf7610bec2416bf141156e8d2b89ef52a2a80fa7b065d717dc9d393be4725206
njrat
c2fad2f1da50fadaeb21235a2f1ab6ca135174b10c0f7e499bf9f7bb1d03daf2
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
f586880e7c2d2991e4cc097fd515c0578af818ba1f57ece0dba2c8626161d22d
njrat
f6b35355faed8f6e0abb9fab797dd06d30d1ede67fbd5b60c3160836a615bc36
njrat
+ 505 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat evasion persistence trojan
Link:
https://tria.ge/reports/201120-2bkl9pescn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4
MD5 hash:
b7f5f198a981cee4daddb7139f231436
SHA1 hash:
be9a7223747a1b70895302133b2e4868a82e74e3
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/6408aae7-71f5-492f-848b-e2bd9142c197/
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/2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4

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:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
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 2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4

(this sample)

  
Link
https://www.virustotal.com/gui/file/2f5cd6b013a52c1946739554d64f35f0af679025755c2191811045833d3ce7a4/detection
  
Delivery method
Distributed via web download

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