Malicious PDF — malware analysis report

Static analysis result for SHA-256 782adab6bc6cc6fc…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 02:30:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6651cacc9c295056323893b0bced2cf2 SHA-1: 7eb085689576dc41f957aae543148d002e9cbed1 SHA-256: 782adab6bc6cc6fc6febf7980dc9d05ffad44ce72d3f322fbe767d5ee782e692
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.co/app/431946152/game-guardian-roblox-money-hack-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-with-no-download_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-sites_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/all-free-xbox-roblox-skins_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/more-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-on-ipod-touch_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hack-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hex-number-gives-free-robux-hack-created-by-robuxian_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-codes-not-used-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-robux-hack-mod_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-card-meepcity_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-daily-free-spins-on-coin-master_GM406889139.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_off000031dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DC 22100 bytes
SHA-256: b98ecd6b0f8da07b73114e1846154066d26940a6578ec926c79225da7a9422c2
font_01_sfnt_off000062aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AA 19728 bytes
SHA-256: ebd3e7a4bf6baef629d9b9f0ad413fdf4c4edccdb5cb473ffaab7ec7785f0f90

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