Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe3810b139211c75…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 20:37:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 94670d51dab6e46e103b8ee44a9ff466 SHA-1: bb02541c4f0783dd9d519c9d2d814c673b454870 SHA-256: fe3810b139211c758078ead1fc8d4ff5995d39ff71e30cd81a2be24fb25a4213
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/479516143/all-minecraft-handbooks-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/como-hackear-cuenta-de-roblox-facil_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/are-there-any-roblox-games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/wahoo-gaming-co-free-robux_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/how-to-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/https-www-blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/script-create-platforms-under-the-character-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-how-to-hack-other-peoples-accounts_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_off00002f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F87 22380 bytes
SHA-256: d58a42db00d5ad05219229372ef1f8a1c2b658e9b8be9872b6050ff94953b920
font_01_sfnt_off000060a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A3 18572 bytes
SHA-256: b0b9eb7219ad3e7ecfb728a5cdc7e716bdd52ca73260479e7ecda84c6c3b0cbe

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