MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c. 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


STRRAT


Vendor detections: 8


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

SHA256 hash: c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c
SHA3-384 hash: eb9768c9b5504eba87abc58db06eb2e903155decc86725921df852070cce58647cf9069e72fceab10dcac380ebb49bd8
SHA1 hash: 1c8244ddbb0df5a82f8b72a4887ead97ee2296a6
MD5 hash: fedae0f2a9271a35749cc5b39596f239
humanhash: south-harry-fourteen-bacon
File name:po.js
Download: download sample
Signature STRRAT
Create hunting rule
File size:354'604 bytes
First seen:2025-06-25 06:56:05 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:eQhsrnjqeojIPBQa4tZFa/0r9JT/KYhUJ3l9iErV1H/rp+T5lnsQsoMJWlH2LyQt:1+
TLSH T1CE74FCC514693A0697B3FA35C311E532AC34ED23299722D2BDC47E45AEB6C505EBEE30
Magika javascript
Reporter abuse_ch
Tags:js RAT STRRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
411
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
YARA.obfuscated_eval.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.JS.Obfus-2309.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=685b9da7b06783b9ebd7320a
Tags:
cryxos virus spawn
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c
Result
Threat name:
Caesium Obfuscator
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1722453
Signature
JavaScript source code contains functionality to generate code involving a shell, file or stream
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 submitted file
Sigma detected: WScript or CScript Dropper
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AllatoriJARObfuscator
Yara detected Caesium Obfuscator
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c
Verdict:
inconclusive
YARA:
1 match(es)
Link:
https://app.malva.re/file/fedae0f2a9271a35749cc5b39596f239
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c/
Threat name:
Script-JS.Trojan.Cryxos
Create hunting rule
Status:
Malicious
First seen:
2025-06-25 06:57:32 UTC
File Type:
Text (JavaScript)
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdejlctqyinhqrsy5u76atusvih6oyxy3w77tja5us6fjo33dwoa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250625-hqs2bsgp2x/
Behaviour
Runs ping.exe
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Looks up external IP address via web service
Checks computer location settings
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
STRRAT
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c

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:detect_STRRAT_javascripts_Malware
Create hunting rule
Author:daniyyell
Description:Detects obfuscated JavaScript code indicative of STRRAT malware.
Rule name:SUSP_Base64_Encoded_Hex_Encoded_Code_RID3420
Create hunting rule
Author:Florian Roth
Description:Detects hex encoded code that has been base64 encoded
Reference:Internal Research

File information

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

Web download

STRRAT

Java Script (JS) js c8c8958a70c21a784658ed3fe04e92aa0fe762f8ddbff9a41da4bc54bb7b1d9c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3562562/
  
Delivery method
Distributed via web download

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