Malicious PDF — malware analysis report

Static analysis result for SHA-256 79342d12223d6e56…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 20:03:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: d0a55a83bd664028eb058a402b5ab1c5 SHA-1: 99e314950c7031dc3da76ffff10de1fa32c056be SHA-256: 79342d12223d6e56af13e616de28ca58aa961028764365c6d3dbe130ca92406e
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/431946152/op-rewards-robux-game-hack In PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/new-free-stuff-on-roblox-august-2021_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/master-coins-free_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/download-free-robux-giver_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/copy-and-paste-roblox-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-official-page_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/auto-cheat-roblox_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-mad-city-cheat-to-kick-people_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-roblox-t-sirde_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-obc-on-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-how-to-play-treelands-for-free_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-roblox-admin-accounts_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-hack-someone-home-in-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-hack-no-human-verification-2021_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_off000030fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FD 22476 bytes
SHA-256: 92f5075ff1e9ba093d283851a9ded9c2bd2f98c5d215cd2f63fdb726538d8496
font_01_sfnt_off0000632c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632C 19068 bytes
SHA-256: 534faaa36bf089c7ecbe950730c1199a35b13db4b273adfd3dba00952940d618

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