Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ed12cc52e17107f…

MALICIOUS

PDF

33.5 KB Created: 2021-07-06 13:26:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 234d000b134d2d8c78a203c9489bf645 SHA-1: e62c0d973b6dfb1c1ded208410b80bf4e8bcb9b6 SHA-256: 4ed12cc52e17107fee8b7bdba2198a5002f9568f24ae7d855251380a1f704170
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/431946152/free-robux-codes-no-human-verification-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/roblox-hacks-4-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-2021-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-cheat-indetectable_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/cheat-engine-scripts-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-para-cualquier-juego-de-rpg-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/lego-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-on-roblox-jail-breaker_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/game-api-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hoe-to-get-a-vip-server-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/shirt-roblox-template-free-shipping_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-no-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC7 22488 bytes
SHA-256: 71c3f78e1fe6613b9e713de17a780cde51434ac02827a0bca22e83669bf5108a
font_01_sfnt_off00005cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC8 19508 bytes
SHA-256: 2dfde449b123a820f71ecd143a07ff41e89d4c72f15aa4e6fc945965a2c79889

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