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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f991d6550ae2cc35d8f879091a17e960b16c55d4eab6011819c68ebebfdb9118. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: f991d6550ae2cc35d8f879091a17e960b16c55d4eab6011819c68ebebfdb9118
SHA3-384 hash: 5d75b29667648875e1754f6445dd1965fc99a09bde3bf1dc640862b0a32c5c8e886317354290f47fe74bf54a4f39d7ef
SHA1 hash: ed4aa777cd0709f49faabaaac6c6ba58459c3cf4
MD5 hash: c21b51f902d93e77a0ffd96325efcb3c
humanhash: wyoming-steak-bluebird-alanine
File name:PO 26001363-1367.js
Download: download sample
Signature DarkCloud
File size:3'587'198 bytes
First seen:2026-10-11 15:17:38 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:DPTFWY4N6bWO12XWOgDcZ2wNyX+A292GU6N1a/uu+fFi4ZEp6mIiFnP5wbUDlZJr:DPMY4N6jWRjaSi4yImj5wUh3AyGjJQPD
TLSH T1CDF5951ED72C8E2D309F39CD6F5181F5DECFB70A90448BD36161DB69A394CA98E423A1
Magika css
Reporter abuse_ch
Tags:DarkCloud js

Intelligence


File Origin
# of uploads :
1
# of downloads :
188
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
99.9%
Tags:
autoit emotet
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug autoit dropper evasive expired-cert fingerprint keylogger obfuscated packed reconnaissance repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-10-10T02:58:00Z UTC
Last seen:
2026-10-13T13:21:00Z UTC
Hits:
~100
Result
Threat name:
DarkCloud
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Signature
Allocates memory in foreign processes
Benign windows process drops PE files
Detected Windows Script Host debugger hammering
Found malware configuration
Injects a PE file into a foreign processes
JavaScript file contains suspicious strings
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: WScript or CScript Dropper
Tries to harvest and steal browser information (history, passwords, etc)
Uses ping.exe to check the status of other devices and networks
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1985502 Sample: PO 26001363-1367.js Startdate: 11/10/2026 Architecture: WINDOWS Score: 100 23 mail.outlook-office365.com 2->23 25 www.google.com 2->25 27 3 other IPs or domains 2->27 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 4 other signatures 2->43 8 wscript.exe 2 9 2->8         started        signatures3 process4 file5 19 C:\ProgramData\...\RBINRDCNBEFJEGW.exe, PE32 8->19 dropped 21 C:\ProgramData\...\vcruntime140.dll, PE32 8->21 dropped 45 Benign windows process drops PE files 8->45 47 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->47 49 WScript reads language and country specific registry keys (likely country aware script) 8->49 51 Detected Windows Script Host debugger hammering 8->51 12 RBINRDCNBEFJEGW.exe 8->12         started        signatures6 process7 signatures8 53 Uses ping.exe to check the status of other devices and networks 12->53 55 Writes to foreign memory regions 12->55 57 Allocates memory in foreign processes 12->57 59 Injects a PE file into a foreign processes 12->59 15 PING.EXE 37 12->15         started        process9 dnsIp10 29 mail.outlook-office365.com 51.195.2.191, 49877, 49878, 49879 OVHFR Germany 15->29 31 showip.net 162.55.60.2, 443, 49875, 49876 HETZNER-ASDE Germany 15->31 33 Tries to harvest and steal browser information (history, passwords, etc) 15->33 35 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 15->35 signatures11
Gathering data
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2026-10-10 08:35:27 UTC
File Type:
Text (JavaScript)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
DarkCloudStealer
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence ransomware spyware stealer
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
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
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments