MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bfebd31a5ae7bb79bcf7070d1d4b3496888446cff66301c4ff1f78f06d8aa601. 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: 12


Intelligence 12 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bfebd31a5ae7bb79bcf7070d1d4b3496888446cff66301c4ff1f78f06d8aa601
SHA3-384 hash: ddbbf5ec0353d09c36147f47cfee26f70adcd755fbf41c7fc6305ef533f9b3e5e8d2e1a49d8503acca779804fea403bc
SHA1 hash: 3605eb167d58b5c78c6d53bfde5405f8731541da
MD5 hash: 42cbb759c62661c54e06541d38ef19c2
humanhash: twelve-quebec-stream-cola
File name:Dll Injector_nls..scr
Download: download sample
Signature njrat
Create hunting rule
File size:3'932'672 bytes
First seen:2022-12-26 22:29:29 UTC
Last seen:2022-12-27 01:00:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:Q30nLjVCe5IBW6ff+bm6A7bKaG1HIkRNq0Jpbp:Y0L8e5I0IfY
Threatray 160 similar samples on MalwareBazaar
TLSH T1BB064A142BF48D37E03AA7B697F393E15BADF916A302E71B154122680A2B7807D4177F
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2de8f9c9e9ad818 (6 x AsyncRAT, 2 x QuasarRAT, 1 x OrcusRAT)
Reporter tcains1
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
211
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Dll Injector_nls..scr
Verdict:
Malicious activity
Analysis date:
2022-12-26 22:29:05 UTC
Tags:
xworm
Link:
https://app.any.run/tasks/c9dc40b3-5a96-4978-9cf2-8076c058b02c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Generic.32740685.5076.21104.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process from a recently created file
Searching for synchronization primitives
Enabling the 'hidden' option for recently created files
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Launching a process
Creating a file
DNS request
Using the Windows Management Instrumentation requests
Searching for the window
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/63aa206ca66e2eb29737749b/reports/0e45da7c-f8f4-48c4-9e9a-c4954f26e172/overview
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:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/011d4cca-9ce9-468d-a3c6-d48def624542
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1141277
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in 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
Snort IDS alert for network traffic
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 774007 Sample: Dll Injector_nls..scr.exe Startdate: 26/12/2022 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 5 other signatures 2->44 7 Dll Injector_nls..scr.exe 4 4 2->7         started        10 system.exe 2->10         started        12 system.exe 2->12         started        14 2 other processes 2->14 process3 file4 28 C:\Users\user\AppData\Roaming\system.exe, PE32 7->28 dropped 30 C:\Users\...\Dll Injector_nls..scr.exe.log, CSV 7->30 dropped 16 system.exe 1 7->16         started        19 WerFault.exe 10 10->19         started        21 WerFault.exe 4 10 12->21         started        23 WerFault.exe 14->23         started        process5 signatures6 34 Multi AV Scanner detection for dropped file 16->34 36 Machine Learning detection for dropped file 16->36 25 RegSvcs.exe 2 16->25         started        process7 dnsIp8 32 blackrdp.mentality.cloud 185.241.208.22, 49698, 7000 GBTCLOUDUS Moldova Republic of 25->32
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bfebd31a5ae7bb79bcf7070d1d4b3496888446cff66301c4ff1f78f06d8aa601/
Threat name:
ByteCode-MSIL.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2022-12-24 17:41:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x7v5ggs2465xtphxa4gr2szus2eiirwp6zrqdrh7d54pa3mkuyaq._file
Verdict:
malicious
Similar samples:
06e3abeed1bc98ed56d5587e9732c9d39ea41879c250dff68ce8815953fcf7ad
njrat
4de07012796040395015b6acfab5996cebb2099bfb362da9b303246580bc41b7
njrat
60215a048517737993b8db0e66cd9aad3c6e533db0757666da371aa116b8ca23
njrat
97c6223e869e8bee159767d7b1f3562e747cf4b995800122edd1fc70df7a70b7
njrat
988eaf2a16406ea397d2ba14d98bcc09d5c56081fcc1f566709c63866b99ffbf
njrat
ae4ff662c959cf24df621a2c0b934ed1fa1c26a270a180f695cd5295579afbbd
njrat
+ 150 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/221226-2esqzadh65/
Behaviour
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Xworm
Malware Config
C2 Extraction:
blackrdp.mentality.cloud:7000
Unpacked files
SH256 hash:
9035307e3e1d13f0b834bda62ec3e416da5fb2a2e636c3286a0b32347013640c
MD5 hash:
93d0fdc1f4e517c53cba02ee988ca147
SHA1 hash:
fb1a13778b23345214ce58e9044d53632efb36e1
Link:
https://www.unpac.me/results/abdafc10-e6ba-4a34-b721-162d40419213/
SH256 hash:
80ea35a7b5939ac77b4bd0f7fae9a787a26e9202326d92f5e83dd4eae344d422
MD5 hash:
6e06e5980017c70caeb6d6f7336503c1
SHA1 hash:
1a6c9a2795d0d488658eab65cd871d68619595c6
Link:
https://www.unpac.me/results/abdafc10-e6ba-4a34-b721-162d40419213/
SH256 hash:
587a15bd0b09c1a912d850de1cb44d6eb2f743e10198a92a99005dfef24f468c
MD5 hash:
505f7d7ab0ecd8f628d1bce011d71e92
SHA1 hash:
0ec439d80acf2a28d24bc4d0a69d74eb31ffd72b
Link:
https://www.unpac.me/results/abdafc10-e6ba-4a34-b721-162d40419213/
SH256 hash:
bfebd31a5ae7bb79bcf7070d1d4b3496888446cff66301c4ff1f78f06d8aa601
MD5 hash:
42cbb759c62661c54e06541d38ef19c2
SHA1 hash:
3605eb167d58b5c78c6d53bfde5405f8731541da
Link:
https://www.unpac.me/results/abdafc10-e6ba-4a34-b721-162d40419213/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bfebd31a5ae7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bfebd31a5ae7bb79bcf7070d1d4b3496888446cff66301c4ff1f78f06d8aa601

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:AsyncRat_Detection_Dec_2022
Create hunting rule
Author:Potatech
Description:AsyncRat
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:win_xwormmm_s1_6f74
Create hunting rule
Author:Johannes Bader
Description:detects unpacked Xwormmm samples

File information

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

Web download

njrat

Executable exe bfebd31a5ae7bb79bcf7070d1d4b3496888446cff66301c4ff1f78f06d8aa601

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2487928/

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