Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc5b132262779a7…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 12:18:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: d56379798609b9f482f7dcc597e3f845 SHA-1: 01a57d6daba5cfd5d53efd0e6797c8d67403fda2 SHA-256: 1dc5b132262779a7660c70719f037d9e5c29289e3ecfa84c0bf967d08b9d701e
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/microsoft-free-robux-game-hack In PDF document text
    • http://www.emotional-training.com/storage/editor/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/how-to-get-roblox-bc-for-free_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/free-robux-no-password-and-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/free-roblox-accounts-made-in-2021_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/fort-hood-texas-hacks-roblox-yt_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/hacks-for-mortem-metallum-roblox_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/how-to-hack-hats-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/how-to-hack-any-magic-in-fairy-tale-revalations-roblox_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/free-likes-and-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://www.emotional-training.com/storage/editor/files/free-robux-mod_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_off00002e26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E26 21752 bytes
SHA-256: 7c36301b75c10eab7e46d89b0b5c6f98af35e9652891c50c8ffde2499e0ccd62
font_01_sfnt_off00005e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E44 19136 bytes
SHA-256: eceba35cd6627b8fd8c95b6fc578f752ad37bdbc88f79a1a211c8d87d48b0e2f