Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f2cdfa65188cc2…

MALICIOUS

PDF

48.3 KB Created: 2021-06-03 06:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-07-01
MD5: 3a0aadf9cce2b553a910f0521a9ea9e5 SHA-1: 73ce4d8ff0f11972ec388364b0224c9553142f43 SHA-256: a4f2cdfa65188cc23c0878f4be50b4ee5282f83c240f010c19114f8032c4c091
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/431946152/roblox-t-shirt-free-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-tiktok-followers-2021_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/hack-avatar_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/robux-website_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/tiktok-free-watch_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off00004f1c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1C 27172 bytes
SHA-256: bb32b0c3a774cd9362222768812e8bb2243ec8ca6b984ca2065ecb59f75579cb
font_01_sfnt_off00008cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD8 4044 bytes
SHA-256: 1d294e62aaefc825cba540a99fbe2f43d024ae9b415520d51a46ac355274ef33
font_02_sfnt_off00009a03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A03 18340 bytes
SHA-256: 5bf7ea3a7e25060a3cf6abcb556a67ab00cd7e1e4a708642a087c1b18a1f5a25