MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fb932f6c5600f229257a8408fa299be08fa6ecc3587826e0dcd454944f42287. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fb932f6c5600f229257a8408fa299be08fa6ecc3587826e0dcd454944f42287
SHA3-384 hash: 3ec84be96175c9048233bdd001ad19488e51234b33c609bb4a56713d7e1c1cee8c8d3316683fb06e4b133a580fae73c0
SHA1 hash: f0e9c213405a8b16e1c71936779eff0262e79ec7
MD5 hash: 1f409af09a25362c458913192c05519b
humanhash: lion-coffee-autumn-tango
File name:1f409af09a25362c458913192c05519b.exe
Download: download sample
Signature njrat
Create hunting rule
File size:397'312 bytes
First seen:2021-06-22 06:35:24 UTC
Last seen:2021-06-22 07:51:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:B5WYMb26Cy538srgIkPs0xmUaf4zSTYmwDqDO8SY:NS22538IgIsNxm3f4mTeDY
Threatray 1 similar samples on MalwareBazaar
TLSH 6D848B36B61AD42EC337C63D8412E508BD23DE6B5DF2822957C4BFFD69325846A34B06
Reporter abuse_ch
Tags:exe NjRAT RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
267
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1f409af09a25362c458913192c05519b.exe
Verdict:
No threats detected
Analysis date:
2021-06-22 06:35:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fcbcf956-f650-42c7-8194-5ffe35783f9a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/167459/
Detection(s):
SecuriteInfo.com.Variant.Bulz.527926.5516.18422.UNOFFICIAL
Create hunting rule

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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/78be7b7d-c824-4d26-b68e-b948f368fc90
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/805757
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Creates an undocumented autostart registry key
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 438168 Sample: mw2FqY6ZXQ.exe Startdate: 22/06/2021 Architecture: WINDOWS Score: 100 35 dontreachme.duckdns.org 2->35 39 Multi AV Scanner detection for dropped file 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 .NET source code contains potential unpacker 2->43 45 7 other signatures 2->45 9 mw2FqY6ZXQ.exe 4 10 2->9         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\JavaUpdate.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\...\mw2FqY6ZXQ.exe, PE32 9->29 dropped 31 C:\Users\...\JavaUpdate.exe:Zone.Identifier, ASCII 9->31 dropped 33 3 other malicious files 9->33 dropped 47 Creates an undocumented autostart registry key 9->47 49 Writes to foreign memory regions 9->49 51 Injects a PE file into a foreign processes 9->51 13 mw2FqY6ZXQ.exe 1 3 9->13         started        17 wscript.exe 1 9->17         started        signatures6 process7 dnsIp8 37 dontreachme.duckdns.org 46.102.106.151, 3605 RADORETR Turkey 13->37 53 Multi AV Scanner detection for dropped file 13->53 55 Protects its processes via BreakOnTermination flag 13->55 57 Machine Learning detection for dropped file 13->57 63 2 other signatures 13->63 19 netsh.exe 1 3 13->19         started        59 Wscript starts Powershell (via cmd or directly) 17->59 61 Adds a directory exclusion to Windows Defender 17->61 21 powershell.exe 25 17->21         started        signatures9 process10 process11 23 conhost.exe 19->23         started        25 conhost.exe 21->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8fb932f6c5600f229257a8408fa299be08fa6ecc3587826e0dcd454944f42287/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-06-22 03:57:16 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r64tf5wfmahsfesxvbai7iuzxyepu3wmgwdye3qnzvcusrhuekdq._file
Verdict:
unknown
Similar samples:
ec66715880d356dd24d4a5e4b9b5b4ffebc2784ffe38870ec2da03fe226be33b
njrat
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/210622-122bcenygn/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Modifies Windows Firewall
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
4a786ce1a8b66dbcf51e864040b9ac65f616fd6476b4267cae8df8686078c98f
MD5 hash:
326ec334afbda095d0bbfe05b49a7024
SHA1 hash:
c170a787a702e98d404bafd2041f14e63437667b
Link:
https://www.unpac.me/results/dc0ac0aa-6820-4186-958c-48ff49afced5/
SH256 hash:
de6d9e7d4b28c01c436729fdd1aace1bd43e38eebf88829e61003ecce4272695
MD5 hash:
91fe66ac49f423bc3de6c6409a642aad
SHA1 hash:
b921228ee661d9e324af10f35f2a718c10571e44
Link:
https://www.unpac.me/results/dc0ac0aa-6820-4186-958c-48ff49afced5/
SH256 hash:
4dfb45e0f6878e66dc01f2d7f1ad52487abba8cff4df8c136c887dddd43a530c
MD5 hash:
888c7e9cf5db19577e5ff50bbc1f1f62
SHA1 hash:
399260b36ebd6b9289e2b3513bcc51da63af1b92
Link:
https://www.unpac.me/results/dc0ac0aa-6820-4186-958c-48ff49afced5/
SH256 hash:
8fb932f6c5600f229257a8408fa299be08fa6ecc3587826e0dcd454944f42287
MD5 hash:
1f409af09a25362c458913192c05519b
SHA1 hash:
f0e9c213405a8b16e1c71936779eff0262e79ec7
Link:
https://www.unpac.me/results/dc0ac0aa-6820-4186-958c-48ff49afced5/
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/8fb932f6c5600f229257a8408fa299be08fa6ecc3587826e0dcd454944f42287

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

njrat

Executable exe 8fb932f6c5600f229257a8408fa299be08fa6ecc3587826e0dcd454944f42287

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1380445/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/167459/

Comments