Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa89ba8bb5a1e567…

MALICIOUS

PDF

32.9 KB Created: 2021-06-29 04:01:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 5e48cd86a1c8c1bf7b1cd503058acabc SHA-1: ff88377f0a8b74a49a1fd1962babf7180d8ca112 SHA-256: aa89ba8bb5a1e567b57f5aef3140483d889b5a24ba88c170a04be454d1bc406a
200 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-bloxburg-free-release-date-game-hack In PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-just-enter-password_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/robux-games_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-promo-codescom_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-spins-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-accounts-on-roblox-discord_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/como-ser-hacker-en-roblox-en-grand-blox-auto_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-a-hacked-roblox-account-back-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/online-coin-master-hack-here_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_off00002d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0B 21240 bytes
SHA-256: 93478642390e2a71aa648326d443d8abf804e28bd2f90ab75ea5ccec51211338
font_01_sfnt_off00005b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B65 19060 bytes
SHA-256: f9de01b77e375792ba00d89a93e560df50cb2affd3c6c0c9032e49db68f41c59

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