MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c2f8abdce972bf98f93082c0327bc6a5b47250ab9f6fec2c3cda844166865a53. 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



DarkCloud


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments

SHA256 hash: c2f8abdce972bf98f93082c0327bc6a5b47250ab9f6fec2c3cda844166865a53
SHA3-384 hash: 8fecb351be5147720c19464c31e556287f14810d28819acf888147105bdcf952112952862a12f509d417c6f8de5441d9
SHA1 hash: 43360c5e1997f51d88bd37b1035a22975a03ca93
MD5 hash: 4357788c55a43d3c931579bcf98b5580
humanhash: washington-october-august-skylark
File name:1C25MFB_00031798.js
Download: download sample
Signature DarkCloud
File size:3'004 bytes
First seen:2025-08-30 14:57:54 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 48:JOsTEliazvwUtUNhDKqVf4HGizEAMpwg8+9G4nk5NTX0bjuh55psWiVgX5kjBwNU:JO8mzZUNhDKqa96wa9Hih55pcyp8BdXl
Threatray 79 similar samples on MalwareBazaar
TLSH T1F751C88A3B81B1400B82D2E76E1B1986F277CDD0844E86A57432B0BDBD6CB65D78B710
Magika javascript
Reporter abuse_ch
Tags:DarkCloud js

Intelligence


File Origin
# of uploads :
1
# of downloads :
61
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
spawn micro msil
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 evasive packed
Verdict:
Malicious
File Type:
js
First seen:
2025-08-28T22:12:00Z UTC
Last seen:
2025-08-28T22:12:00Z UTC
Hits:
~1000
Result
Threat name:
DarkCloud
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for dropped file
Benign windows process drops PE files
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Found stalling execution ending in API Sleep call
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential obfuscated javascript found
Queries random domain names (often used to prevent blacklisting and sinkholes)
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1768204 Sample: 1C25MFB_00031798.js Startdate: 30/08/2025 Architecture: WINDOWS Score: 100 33 www.anpmnmxo.biz 2->33 35 zyiexezl.biz 2->35 37 77 other IPs or domains 2->37 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 14 other signatures 2->55 8 wscript.exe 4 19 2->8         started        signatures3 process4 dnsIp5 39 files.catbox.moe 108.181.20.35, 443, 49681 ASN852CA Canada 8->39 21 C:\Users\user\AppData\Local\Temp\...\Viet.exe, PE32 8->21 dropped 23 C:\Users\user\AppData\Local\...\SV1M7vX.exe, PE32 8->23 dropped 57 System process connects to network (likely due to code injection or exploit) 8->57 59 Benign windows process drops PE files 8->59 61 JScript performs obfuscated calls to suspicious functions 8->61 63 2 other signatures 8->63 13 SV1M7vX.exe 4 8->13         started        file6 signatures7 process8 file9 25 C:\Users\user\AppData\Local\TempEAEAA.dll, PE32 13->25 dropped 65 Multi AV Scanner detection for dropped file 13->65 67 Writes to foreign memory regions 13->67 69 Allocates memory in foreign processes 13->69 71 2 other signatures 13->71 17 RegAsm.exe 89 13->17         started        signatures10 process11 dnsIp12 27 dlynankz.biz 85.214.228.140, 49740, 80 STRATOSTRATOAGDE Germany 17->27 29 gjogvvpsf.biz 104.156.155.94, 49710, 49719, 49764 SRCACCESSUS United States 17->29 31 17 other IPs or domains 17->31 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->41 43 Tries to steal Mail credentials (via file / registry access) 17->43 45 Found stalling execution ending in API Sleep call 17->45 47 Tries to harvest and steal browser information (history, passwords, etc) 17->47 signatures13
Gathering data
Threat name:
Script-JS.Trojan.Leonem
Status:
Malicious
First seen:
2025-08-29 02:37:51 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Result
Malware family:
darkcloud
Score:
  10/10
Tags:
family:darkcloud discovery execution ransomware spyware stealer
Behaviour
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Badlisted process makes network request
DarkCloud
Darkcloud family
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:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Comments