Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d39d6a53a9c54d1…

MALICIOUS

PDF

32.7 KB Created: 2021-07-05 13:31:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: e432e0fef14d46931875bea43a517768 SHA-1: 3b75c0070d5405814e72ef0be6d4d880b8b4d0a0 SHA-256: 0d39d6a53a9c54d175c117903563e31c593840fb947bb575e4b17a20242ff8a1
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/479516143/minecraft-pocket-edition-mods-for-free-game-hack In PDF document text
    • http://perpustakaan.urindo.ac.id/repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/robux-in_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/free-robux-no-verifiation_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/how-to-get-free-robux-games_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_off00002d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D02 21640 bytes
SHA-256: f5c9e75955b6d2b674d79de720f4113ab4df8735037de588c835f417d7d14048
font_01_sfnt_off00005c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C82 18496 bytes
SHA-256: f53502fd8dfdcb0e81f477cb61e2d3dd88ec9f063b8f20d7f418ef222ebf3320