Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc78a1197113554…

MALICIOUS

PDF

36.4 KB Created: 2021-07-04 20:01:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: aa3711ef6465ab5b3859ab51fa0096fd SHA-1: c0737becb5b9c05603582c137f3e62d8bc503c29 SHA-256: 1dc78a1197113554ae6189bfba645fb3fa05e76968ad9254063badd704a062bd
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-apk-android-1-game-hack In PDF document text
    • http://stitqi.ac.id/website/repository/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/como-hackear-juegos-de-roblox-2021-sin-descargar_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coun-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-the-right-roblox-account-pin-hack_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-gifts_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_off0000377e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x377E 22992 bytes
SHA-256: ecbfd0a963011a5128e8303830a89e3e7f843c5ad1c6c933b2d9b9715aa4cab5
font_01_sfnt_off00006b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B18 18460 bytes
SHA-256: 1611a94826cb630d7b7f9301903475fe36816623420caedeae31c4ed4cef138a