Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cf1a87271a21ee…

MALICIOUS

PDF

34.5 KB Created: 2021-07-01 23:41:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f205ecd7ca6d00c39c3befa0b2a7367c SHA-1: 30ffc4bcb191eb4305ff4ee0b2744e1f87c89c2a SHA-256: 46cf1a87271a21ee8cc91796da6152cf625d1c56a68310bab446df5016b4c4ee
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed to lure users into clicking links related to game hacks and free currency. The primary link directs to a known malicious redirector infrastructure, which in turn hosts multiple other PDF files, likely serving as further lures or downloaders. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

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/roblox-hack-online-no-survey-game-hack In PDF document text
    • http://windhorsetrek.com/userfiles/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/get-free-group-roblox_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/stop-roblox-from-shutting-down-cheat-engine_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-robux-app_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/blox-best-robux_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://windhorsetrek.com/userfiles/files/master-coin-free-spin-daily_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_off000030e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E8 21880 bytes
SHA-256: 6c2c48dd951f895fce973b1bff5ce833cd2dd64bf7fcc8464f612846a155280c
font_01_sfnt_off00006158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6158 19212 bytes
SHA-256: ee0424aeadf778c72285730016a449593d05fa42a2bb8ef21e760f3130c03455

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