Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeaa22d463080bce…

MALICIOUS

PDF

33.9 KB Created: 2021-07-01 15:17:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c0b5b2669c4859afd2d2becdad2ab9d0 SHA-1: 36bfcf55a2beed01085b289b05cd9a73907b8c46 SHA-256: eeaa22d463080bce5961b3cb05f68cde2da4b5f0f8ae7f8ebe7112429c82215a
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 URLs, many of which are related to game hacks and in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting a link farm designed to attract users with promises of free items. The presence of a 'download button' lure further supports the idea that the document is intended to trick users into clicking malicious links, likely for phishing or malware distribution.

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/site-to-have-free-robux-game-hack
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/pastebin-com-robux-free_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-minecraft-pe-server_GM479516143.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-coin-master-spins-and-coins_GM406889139.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-hack-windows-10_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-permanently-get-free-robux_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-roblox-hacks-2021_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-vehicle-simulator-shakedown-hack-glitch_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-hack-roblox_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-an-acount-on-roblox_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-generator_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/minecraft-hacks_GM479516143.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-admin-on-roblox-with-cheat-engine_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-without-waiting-now_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021-no-human-verification_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-hacked-com-2021_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-a-survey_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-how-to-hack-robots-with-cheat-engine-64_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-roblox-card-reedemm-code_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f5f.bin
ff778fe2d48bf62d9b81acd191e8e3a6a96c2aa0fd946a99351cba5ac3a8e8cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5F 21736 bytes
font_01_sfnt_off00005f29.bin
24e54b95f2e2726f4bac71fe9e0799ff441da69a2ab33b221e2f620194c7856b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F29 19052 bytes

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