Malicious PDF — malware analysis report

Static analysis result for SHA-256 425d8e7caef632d4…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 06:16:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16
MD5: df9372f4792b4b3f785b7bafe7807684 SHA-1: ffce1bb24c3f7c39e7b41d5c5e9764555b7656f9 SHA-256: 425d8e7caef632d470f530cdae50a9b44c4b521fcdc99617a3d9700a80ee3d68
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/roblox-deathrun-hack-script-money-game-hack In PDF document text
    • https://library.pqm.co.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/roblox-speed-hack-cheat-engine-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/roblox-valentine-generator-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/roblox-free-ropa_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/hao-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/inject-hack-roblox-game-code_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-hack-mobile_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/play-games-online-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/spin-coin_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_off00002f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F47 21864 bytes
SHA-256: 4e0632ab9489180eead0607c191112c0153c035067f5f19c085ccc4288e0f931
font_01_sfnt_off00005f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F75 19908 bytes
SHA-256: f768f50d79793317dcf32849cadf0b564d3659e13bfeda4046ccc84faadbfc63

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