Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e642a2bcae8442f…

MALICIOUS

PDF

30.2 KB Created: 2021-07-04 23:36:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cdee635ed7a0be0486778236bf2de1b5 SHA-1: da21b62c82c7f550f3ff4659f7e1e558a9552e04 SHA-256: 8e642a2bcae8442f108369da41f64767d66e4ac9a18b9608c42cfaa000a569f4
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains heuristics indicating it links to external websites, specifically a 'free generator / game hack' lure. The document body and extracted URLs reinforce this, pointing to sites offering game cheats and currency. While no scripts were extracted, the primary attack pattern involves social engineering users into visiting malicious URLs, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector high 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-coins-on-coin-master-generator-game-hack PDF link annotation
    • http://library.yamasi.ac.id//repository/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-inspect-element-free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-free-model-roillercoaster_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/20210-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-epic-minigames-speed-hack-download-free-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/farming-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-printable-roblox-birthday-card_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/topkek-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-accounts-with-robux-that-work-bugmenot_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-hack-robux-on-windows_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/get-20210-robux-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F36 22932 bytes
SHA-256: 7b311b10379bb6182d723901576c0415f7d1213d0eea09e4624664c85cd86259

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