Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef2e26566fe0ee1…

MALICIOUS

PDF

19.5 KB Created: 2021-07-05 21:53:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 20f764d7876c1ffe46d26dd42e3deb23 SHA-1: 2cbd237198d4dba02fe0ae867ba230fe574caefc SHA-256: 0ef2e26566fe0ee10d2f87b51c60a45ba913e2a65cfe70d96c8871da40e3362c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, presenting itself as a generator or hack for popular games like Roblox. It contains numerous embedded URLs that redirect to malicious infrastructure, likely to download further malware or phish for credentials. The ML classifier and specific PDF heuristics strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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/431946152/roblox-hack-to-get-robux-2021-game-hack In PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/download-to-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-speed-change-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-fly-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hwo-to-hack-roblox-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-with-pastebin_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/pokemon-go-free-items-code_GM1094591345.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-hack-roblox-no-verification_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-roblox-accounts-2021-real_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/robux-hack-no-human-verification-or-offers_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/sk8r-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-hair-for-free_GM431946152.pdfIn PDF document text

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