Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d11053b97363a3b…

MALICIOUS

PDF

34.8 KB Created: 2021-06-19 04:51:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 38800ab0272b50c8edf4607a99f82ae0 SHA-1: 6c9c9dc72f6f0be187bdffcb9621acea78ee12e3 SHA-256: 3d11053b97363a3b91261954b0b4e8a64d56492262acb4efca9015e151ec0fc2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded URLs, many of which are SEO-optimized links pointing to resources related to game hacks and cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier strongly flagged this PDF as malicious. The document likely serves as a lure to download malicious content or visit phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/lua-script-hack-dinosaur-simulator-roblox-game-hack
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/haktuts-coin-master-free-spins_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-games_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-xyz-apk-download_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/claimrobux-net_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdf
    • http://digilib.akbidarrahma.ac.id/repository/free-roblox-hacks-free-robux_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-generator-2021_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-unlimited-robux_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/all-links-for-free-spins-coin-master_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/minecraft-bedrock-free-download-pc_GM479516143.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-look-like-project-zorgo-in-roblox-free_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/hack-visea-roblox_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/roblox-saber-sim-hacks_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-hack-protect-jojo-roblox_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/bux-blast-free-robux_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003035.bin
a9aa6060c61ee25b5c42b2a0a2bbc5a2959d58f275d1a5fb6fee7bee0eb0bcf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3035 22248 bytes
font_01_sfnt_off0000617a.bin
7651520ccc5abc4bfc9589fcdefa7ca6091e6516badbe8d25c2d6f0958f6fee8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x617A 19624 bytes

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