MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1eff237dee95172363bfc0342d0389f809f753a6ec5e6848e57b3fd5482e9793. 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 1 File information Comments

SHA256 hash: 1eff237dee95172363bfc0342d0389f809f753a6ec5e6848e57b3fd5482e9793
SHA3-384 hash: c9055702b17125a102115afa32405130132536c03c721d55358e03e3f05d22f12cd434b0d86a54c9602de65b66014a92
SHA1 hash: f759ccb6886234c63a66abd6102c636a46d1eba8
MD5 hash: 0ac44ad9cfbc58ed76415f7bc79239f9
humanhash: virginia-lemon-network-black
File name:api_reference.chm
Download: download sample
Signature Kimsuky
File size:13'254 bytes
First seen:2026-04-10 18:31:52 UTC
Last seen:Never
File type:
MIME type:application/vnd.ms-htmlhelp
ssdeep 96:9yKbXKvtydHWFnAOXgWn8XHblUkFB+JJZfP7Da3R/E17UFbMiCzw:9ya8wHx+b8rlN+fZfP7mu7WMiCz
TLSH T1B0525C5442B08192C224CF767BA9228E23B1BD717B349B573253F75C8BA564C6D90C2B
TrID 81.0% (.CHI) Windows HELP Index (17144/6)
18.9% (.CHM) Windows HELP File (4000/1)
Magika chm
Reporter smica83
Tags:apt chm Kimsuky

Intelligence


File Origin
# of uploads :
1
# of downloads :
78
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme sage
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
soft-404
Verdict:
Malicious
File Type:
chm
First seen:
2026-04-10T15:40:00Z UTC
Last seen:
2026-04-12T12:28:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Stealer.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic Trojan.Win32.Agent.sb Trojan-Dropper.Win32.Agent.sb Trojan-Downloader.JS.SLoad.sb Trojan.Multi.Agent.sb HEUR:Trojan-Downloader.Script.Generic NetTool.PowerShellUA.HTTP.C&C NetTool.PowerShellGet.HTTP.C&C PDM:Trojan.Win32.Generic PDM:Exploit.Win32.Generic
Threat name:
Script-JS.Trojan.Heuristic
Status:
Malicious
First seen:
2026-04-10 18:32:39 UTC
File Type:
Binary (Archive)
Extracted files:
15
AV detection:
12 of 38 (31.58%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion execution persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Deobfuscate/Decode Files or Information
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CHM_File_Executes_JS_Via_PowerShell
Author:daniyyell
Description:Detects a Microsoft Compiled HTML Help (CHM) file that executes embedded JavaScript to launch a messagebox via PowerShell

File information


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

Comments