MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e. 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


Kimsuky


Vendor detections: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e
SHA3-384 hash: 7a66bb90ccf5d8ac5364076e137c7fa577a68758b6e4c267618ffd1cf868665b9f0d40ffb58366ddf4942acf173aa0f7
SHA1 hash: f752fec87877fdf366dda38313e3f83853eb9d90
MD5 hash: 903cec93146327414cbc49068c524292
humanhash: ohio-mirror-thirteen-lima
File name:81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e.bin
Download: download sample
Signature Kimsuky
Create hunting rule
File size:4'899'895 bytes
First seen:2025-12-02 04:57:03 UTC
Last seen:2025-12-02 04:58:20 UTC
File type:JScript (JSE) jse
MIME type:text/plain
ssdeep 49152:yTFqC7emrxxnsv7Dp3nvYpohCP6Yg/qZI8VKj9+vBvGXTrFyTFqC7kTFqC7A:o
TLSH T1AC36F111AF846F9EB78D0D57E0BD6A0FA7F31B84D0B3B1CD67923603258EE1C9619858
Magika javascript
Reporter KodaDr
Tags:javascript jse Kimsuky


Avatar
KodaDr
#Javascript #Kimsuky

Intelligence

File Origin
# of uploads :
2
# of downloads :
68
Origin country :
RU RU
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.25834.JsHeur.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692e870616e6db515e45d2c9
Tags:
extens virus sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 base64 certutil evasive fingerprint kagent lolbin masquerade nukesped obfuscated obfuscated packed powershell regsvr32 repaired rundll32
Link:
https://www.filescan.io/uploads/692e86fec1a2f55fb9c5271e/reports/12972a36-a609-455e-8f65-07a4d7d4845b/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e
Verdict:
Malicious
File Type:
js
First seen:
2025-10-24T04:08:00Z UTC
Last seen:
2025-11-02T02:13:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e/results?tab=lookup
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e/
Threat name:
Win32.Trojan.Generic
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Status:
Suspicious
First seen:
2025-10-23 14:54:50 UTC
File Type:
Text
AV detection:
9 of 23 (39.13%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhryiry7z6thklfydsq3popoivompdyvqdjgb3l2chlifi3ysmha._file
Verdict:
malicious
Label(s):
kimsuky_memload
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
adware defense_evasion discovery execution persistence spyware
Link:
https://tria.ge/reports/251202-g8fchscn7s/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies registry class
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Browser Information Discovery
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Deobfuscate/Decode Files or Information
Checks computer location settings
Deletes itself
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/81e384471fcfa6752cb81ca1b7b9ee455cc78f1580d260ed7a11d682a378930e

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:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:SUSP_Double_Base64_Encoded_Executable_RID34CC
Create hunting rule
Author:Florian Roth
Description:Detects an executable that has been encoded with base64 twice
Reference:https://twitter.com/TweeterCyber/status/1189073238803877889

File information

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

Comments