🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9. 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


DonutLoader


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9
SHA3-384 hash: e40d262279ff2491a4c804923cdd8e72e4547c59f889fa1e0044293424cde117e2fab8552ff048c7467d605d7be63fcc
SHA1 hash: 0f54b1d4778b5436cc55fb21dfd18b4564810926
MD5 hash: 8136dcc15742695a1bdee9bf26302240
humanhash: cold-pip-mars-quebec
File name:ekstre.pdf.js
Download: download sample
Signature DonutLoader
Create hunting rule
File size:2'495'374 bytes
First seen:2026-09-04 12:53:14 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:i8LVovxiJEG1FI7+DlSu7R/zmzCVXTUZ7EXrH33GwiwznLTfDz6JHaQSLe:n+vxiuqi7+N4GprLPnLn2g4
TLSH T104C59C470B7C273B9BA103621468C50923F84ED5DC76AF09A62DC4B86D78E1F66B49FC
Magika javascript
Reporter abuse_ch
Tags:donutloader geo js TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug base64 downloader evasive fingerprint keylogger masquerade obfuscated obfuscated reconnaissance repaired
Link:
https://www.filescan.io/uploads/6a9abf7654fa95ca6b1a3e71/reports/ef1dc61b-4898-4e5a-88fb-9f6f7c36df0b/overview
Verdict:
Suspicious
Labled as:
JS/Obfuscated.CN trojan
Link:
https://www.hybrid-analysis.com/sample/4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9
Verdict:
Malicious
File Type:
js
First seen:
2026-09-04T09:05:00Z UTC
Last seen:
2026-09-04T09:40:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9/results?tab=lookup
Result
Threat name:
DonutLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1968619
Signature
Benign windows process drops PE files
Found API chain indicative of sandbox detection
Found direct / indirect Syscall (likely to bypass EDR)
JavaScript file contains suspicious strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample or dropped binary is a compiled AutoHotkey binary
Sigma detected: Suspicious Parent Double Extension File Execution
Sigma detected: WScript or CScript Dropper
Unusual module load detection (module proxying)
Uses an obfuscated file name to hide its real file extension (double extension)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected DonutLoader
Behaviour
Behavior Graph:
Download SVG
Score:
57%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j754otfru25lxk5whj3o5v6kbxkaumv2pl5onnh4s3kducie6xeq._file
Verdict:
malicious
Label(s):
DonutLoader
Create hunting rule
Link:
https://reports.threatray.com/49103822-6123-49df-bf47-a83c64f99da9
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader execution loader persistence ransomware
Link:
https://tria.ge/reports/260904-p4q78aff75/
Behaviour
Modifies registry class
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
Checks computer location settings
Executes dropped EXE
Detects DonutLoader
Family: DonutLoader
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4ffbc74cb1a6babbabb63a76eed7ca0dd40a32ba7afae6b4fc96d43a0904f5c9

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

File information

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

Comments