Malicious PDF — malware analysis report

Static analysis result for SHA-256 72ba494c87427e69…

MALICIOUS

PDF

34.8 KB Created: 2021-06-27 14:16:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 7eefc69b1dd04e4687bd107be6cf3369 SHA-1: 757fbb35502be4a2f6fb7b409bd67e30e5a4d4d3 SHA-256: 72ba494c87427e699e6f16542a7e7e8bf39b5f1e4ffa9b6f5a3b356f0a72cc9c
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.co/app/431946152/free-robux-hack-glitch-game-hack In PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/moon-active_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-steves-one-piece-money-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-tix-roblox-pbb_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/jailbreak-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-limiteds-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/scp-lockdown-roblox-game-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/adopt-me-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/ban-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/spin-hack-for-coin-master_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
stream_002_off00002ebc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EBC 22972 bytes
SHA-256: 5a12a2ea90bec034e7176cfdc4f73ef1e312b101a8c4ebd939e8dc8d121ff34d
font_01_sfnt_off00006237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6237 19348 bytes
SHA-256: 7df39d21b9dae8d6d0ff58d47932330b7ca4db45a128f62028d157aaa1cdf1ff