Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98e616ac416cbe4…

MALICIOUS

PDF

35.8 KB Created: 2021-07-05 05:10:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4af38c504b22949f3dbe5782bf10fe4d SHA-1: 6185e9a402c3b9e83c29aa782aa75e640bcff3f8 SHA-256: e98e616ac416cbe4d78cb7ed41ec4080176e55b2faff32a4204b6b749672cd5f
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-tiradas-gratis-link-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-hack-script-vehicle-simulator-infinite-money-script-free_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/speed-hack-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-cods-free-roblox-obc-or-robux_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-redeem-card-codes_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/robux-hack-for-roblox-that-works_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-daily-free-coins-link_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_off000035e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35E5 22996 bytes
SHA-256: 33d0f10a2c934652e55a8f8f14347b77f43409cb60cab1f3ae49084cf4273b43
font_01_sfnt_off00006998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6998 18180 bytes
SHA-256: eb709c113ba60c115f2b8b8b229b5927732780444a7a314d98a2d1fc1dd07480

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