Malicious PDF — malware analysis report

Static analysis result for SHA-256 79293be9e31c46e3…

MALICIOUS

PDF

20.6 KB Created: 2021-06-11 03:16:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f49a4d7bb0596bdd770f9533d550cb2b SHA-1: 5187e27be11883ebc7ece3e7fcf84eae4f1d0802 SHA-256: 79293be9e31c46e3f3e0f94c985145d37ef8fab0c696934620d54b4938765284
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links that are flagged as malicious redirectors, specifically luring users with promises of game hacks. The primary URL, https://netcdn.tw/app/431946152/roblox-how-to-hack-gravity-with-cheat-engine-game-hack, is a clear indicator of a phishing or scam attempt. No scripts were extracted, but the embedded URLs are sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 https://netcdn.tw/app/431946152/roblox-how-to-hack-gravity-with-cheat-engine-game-hack In PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-hack-roblox-using-lucky-patcher_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/robux-hacks-march-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text