Malicious PDF — malware analysis report

Static analysis result for SHA-256 f92f30be202af368…

MALICIOUS

PDF

35.6 KB Created: 2021-07-02 03:59:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 261a1533bdf22f281cc2c7adf3608ba6 SHA-1: ebf380a1d3cb7fc4c6d0aead21989009b465404a SHA-256: f92f30be202af368bb69bd994cbec5aeb747049551df815d49794d8f9ce015af
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and document body text that explicitly advertise game cheats and hacks, directing users to download them. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the primary URL leads to known malicious infrastructure, likely serving a second-stage payload. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/download-cheat-for-roblox-android-1.com-game-hack In PDF document text
    • http://repository.poliven.ac.id/repository/cranberry-roblox-hack_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/fun-flex-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-lumber-tycoon-hack_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/cheat-terminal-railway-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/download-roblox-for-free-seash_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-one-piece-mythical-fruits-hack_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-20219_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/games-that-you-play-for-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-free-shirts-on-roblox-no-bc_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_off000031a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A7 22324 bytes
SHA-256: 8194581f15c7d19107e9d044c88e547a017a8e10e4708adb46e24e095299c7e8
font_01_sfnt_off00006373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6373 19976 bytes
SHA-256: 36aa78e455dbb621fbb90c68707946154569743ea2122bea576c1a7d8c375e37

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