Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d87767a22d2e957…

MALICIOUS

PDF

36.2 KB Created: 2021-07-03 17:13:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64f4688d2b4e89d803204d2fed4a79c8 SHA-1: a97b7340dbfacf496a9ddd4bc612b520984f74ed SHA-256: 6d87767a22d2e9575af9c8a20a5569f3c10818ec424eda5a7da5f08848a49ad4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating it is a malicious redirector lure, specifically advertising free game hacks. The primary URL identified, http://netcdn.tw/app/479516143/minecraft-windows-10-edition-unlock-full-game-free-game-hack, is flagged as a known malicious redirector. The document body, though partially garbled, reinforces the lure with similar content and URLs.

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/479516143/minecraft-windows-10-edition-unlock-full-game-free-game-hack In PDF document text
    • http://library.asih-husada.ac.id/repository/assassin-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-get-robux-games-for-free_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-get-free-robux-on-computer-hack-inspecting_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/bloxrp-money-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/roblox-shinobi-life-cheats_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-get-free-robux-no-survey-no-download_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/hacks-in-thessaloniki-international-airport-roblox-air-attica_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/roblox-dashing-simulator-cheat_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/hack-in-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_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_off000035ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35AD 22276 bytes
SHA-256: 9691dd3ec93c9c398e9d71d4bdd86f2aa0047bc43717fe11684d4d72d5e96421
font_01_sfnt_off000066f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F3 19640 bytes
SHA-256: 47d10a1036fcc456ba2053dd7803dd0c25f0b41a28218fe8a31f32c3cb89e0a4