Malicious PDF — malware analysis report

Static analysis result for SHA-256 81a658f4061ecff1…

MALICIOUS

PDF

16.0 KB Created: 2021-07-04 13:16:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 665c6561c7f6f3e34f27185b9607dd98 SHA-1: 2287ac8f107cdca75c5eb1eec95b8ee08fc54535 SHA-256: 81a658f4061ecff1f0e52789b91fb896388296a95ad5c9239daf46f475500c63
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appear to be game hack generators. These links redirect to known malicious infrastructure, specifically a URL associated with game hack lures. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body primarily consists of obfuscated text and URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-lucky-patcher-hack-game-hack In PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-face-png-free_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/robux-roblox-hackcom_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/robux-hack-2021-december_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-no-hack-or-human-verification_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-roblox-jailbreak-private-servers_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/cheats-roblox-mega-fun-obby_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-redeem-a-roblox-card-for-free_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-how-to-hack-someones-account-2021_GM431946152.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.