Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b69f76735177ab2…

MALICIOUS

PDF

48.0 KB Created: 2021-06-07 13:19:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-17
MD5: dfe87d0ce7778aded34252f88c34e050 SHA-1: 3671f8b6528cca503e0d7c5422af3cbb85beff82 SHA-256: 2b69f76735177ab2dbff03038ce2dd58bd7fe2d120ec53b6e34f3d198c34af4f
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/animations-give-free-robux-robuxian-game-hack In PDF document text
    • http://androidthai.in.th/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/roblox-superhero-simulator-hack_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://androidthai.in.th/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/100-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://androidthai.in.th/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005035.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5035 26428 bytes
SHA-256: 720f7bb92185596f6a2045f9add6bbfaafa41fc5a61c84e8b369dd990e60a3c4
font_01_sfnt_off00008d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D82 2820 bytes
SHA-256: d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b
font_02_sfnt_off0000971d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x971D 18840 bytes
SHA-256: 1d239480625ed2fc7639a6eaeda82162b8cc1f1a0fe21943a98c7369ed80cc34