Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff69c58d05c87ab8…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 03:44:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1a4cab2b52b3461c21b88ef02a53e471 SHA-1: 6b7b7c06991d4da8a523d4b7d37c7a298d17d658 SHA-256: ff69c58d05c87ab88e7339921d1f245cf7803b629645a6d175ebda74a266bf23
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, which is designed to lure users into clicking on deceptive content related to game hacks. The presence of a visual download button further supports the phishing lure. No scripts were extracted, but the document's structure and embedded URLs indicate a phishing attempt to redirect users to potentially malicious sites.

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/how-to-noclip-in-roblox-mac-without-cheat-engine-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-cash-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-hack-someone-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-run-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-wings-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/unendlich-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-use-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-free-download-for-windows-7_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-juwelen-hack-mad-paintball-2_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/who-to-get-robux-for-free_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_off00002e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E69 22484 bytes
SHA-256: 10730a9495f99da048be454acf6874f58260630a08fc86e624046951431956bc
font_01_sfnt_off00006083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6083 19748 bytes
SHA-256: 16cc05ee1bc8a71d5c765c7b1034f1cd3e60aa5aef5f9c196e1f229728551e9e

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