Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cc2fb6b9c62f8c3…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 15:02:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ed2324c93b3887c31900d924ef5867a7 SHA-1: abe4a4bd283d64f65562cdbb6040f861ad661035 SHA-256: 4cc2fb6b9c62f8c394f6c6915c2ef7a813c962293daade11c26f5fec0a4a59a7
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/431946152/girl-roblox-avatar-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-world-free-to-use_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/hack-place-roblox-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-premium-in-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-roblox-robux-generator-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-robux-robux-obby_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/no-free-robux-text_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-july-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/cheat-roblox-diamond_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-neueste-version-free-download_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/easy-robux-today-for-free_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_off000030d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D2 22852 bytes
SHA-256: b1ece38ad5b7f978600515c7d3d144bd37dd550cb97110912bba80b67f861b8e
font_01_sfnt_off00006455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 18824 bytes
SHA-256: 5de93663545e585bb3ec51caaed0e7665131e60661237b1a7a5d41b420e717e4

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