Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b08f2c95a87027…

MALICIOUS

PDF

33.0 KB Created: 2021-07-06 13:59:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 0664ff7f11f6c8aac81af1dbb14dbc81 SHA-1: 448e584bb943b573e9f24a593b99fd8a84451fda SHA-256: 72b08f2c95a87027684e24d62b300201134c3a0c6e88e56a8e74287795cdea82
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/free-modded-minecraft-server-game-hack In PDF document text
    • https://tckontrola.hr/files/free-pants-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/free-pets-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-free-master_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/hack-roblox-simular-click-raton_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/roblox-executor-free-2021-roblox_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/how-to-get-free-robux-on-roblox-with-proof_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/codes-admin-get-free-robux-roblox_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-get-1-million-robux-for-free-2021_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_off00002efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFA 21692 bytes
SHA-256: cc2392ac73cc4b4a1385f8799ec5844314695e59bc53981c2e99658185f1238b
font_01_sfnt_off00005e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E12 18284 bytes
SHA-256: c44f5995e1a698afb30ee04b8d335bc8d1a723b5683d31903f3ca0c4c9b26917

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