Malicious PDF — malware analysis report

Static analysis result for SHA-256 94655f354061fe5f…

MALICIOUS

PDF

34.0 KB Created: 2021-07-08 01:37:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 46b390a8029f631c9d1e210dcfb53bd6 SHA-1: 4e5e016cc45a03ef7454241f074ce8e7dc376975 SHA-256: 94655f354061fe5f57b341f282a973c57a89f8c22d1fdf55445134a7ec8eee29
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 0.9980

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/406889139/coin-master-hack-programers-game-hack PDF link annotation
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-clothes-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-obby-games-free_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-admin-in-your-own-roblox-place_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/pre-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-cheat-phantom-forces_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-hack-roblox-games-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/inyector-de-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/secret-robux-hack-subscribe-to-make-it-works_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-online-roblox-login_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-robux-gratis-sin-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/nazi-roblox-hack-pastebin_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_off000030c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C3 22104 bytes
SHA-256: b17b87335be7faaac5a5485050c8cd17aa5ac222fc64bbf59ea46d10e52485a0
font_01_sfnt_off000061a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A8 18416 bytes
SHA-256: 5741a127261724fddf521fc94ebfc06f31583a26a9f94a4c147a021759ab8b48

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