Malicious PDF — malware analysis report

Static analysis result for SHA-256 68e3e2e0c570fd7c…

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 14:46:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 95ced562f62fb34fe91bfb8f522fdbd6 SHA-1: 72b7d0df9c5490f297bb0f8bcd662c7545a51ff5 SHA-256: 68e3e2e0c570fd7c992c8fb882740123d83e2876468f42fcd17dd3ecd3560807
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which are SEO-optimized and point to external resources related to game hacks and free in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier strongly suggests maliciousness. The document body and extracted URLs suggest a lure for users seeking cheats or exploits for games like Coin Master and Roblox.

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.tw/app/406889139/coin-master-hack-apk-download-for-android-game-hack
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-robux-2021-youtube_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/brand-new-free-robux_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/como-tener-robux-hack-2021_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-hack-roblox-acounts-to-do-good-stuff_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-apps-that-work_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/free-promo-codes-for-roblox-2021_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/fashion-frenzy-roblox-game-free-download_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/sans-shirt-roblox-free_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/facebook-coin-master-free-spins_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/riot-police-roblox-free_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-coins-free_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/roblox-cheats-no-human-verification_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-pc-free_GM406889139.pdf
    • http://digilib.akbidarrahma.ac.id/repository/download-roblox-robux-hack-free_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/what-do-points-do-in-roblox_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/hacks-for-roblox-prison-life_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-hack-paintball-on-roblox-with-cheat-engine_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/pubg-600-uc-in-pakistani-rupees_GM1330123889.pdf
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-ge_GM431946152.pdf
    • http://digilib.akbidarrahma.ac.id/repository/how-to-hack-roblox-robux-with-inspect-element_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031f2.bin
0b2dc7e80726d2e0e26b2b76544157d779449ca4defcde86c83256dcd6fa81d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31F2 22980 bytes
font_01_sfnt_off00006593.bin
1cf9981fa265b31f69f9f07c7993afa1bce844b0d5c7655559eae79f3315a78a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6593 18924 bytes

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