Malicious PDF — malware analysis report

Static analysis result for SHA-256 73053050072362dc…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 16:32:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e2ae92644af3ea84507edb6a61c43d86 SHA-1: 0b105ecbb277a7944403468d26bec2fc4d6881b7 SHA-256: 73053050072362dc859a7d97b8385e5ef047a49d3ce6724e919c53cb7c64e628
102 Risk Score

Malware Insights

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

The PDF contains numerous links disguised as resources for popular games, aiming to trick users into downloading malicious content. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, and ML_NYX_PDF_MALICIOUS confirms a high probability of malicious intent. The document body, though partially corrupted, contains references to game-related downloads and URLs.

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/479516143/free-minecraft-resource-packs-game-hack
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-do-deals_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-legit-2021_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-roblox-exploits-like-synapse_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-sex-games-free-model_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-cheat-roblox-anti-idle_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-someones-robloc-account-for-robux_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/best-hacks-for-counter-blox-roblox-offensive_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-money-hack-no-human-verification_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/easy-p-hack-plaza-game-roblox_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-card-codes-parody-of-robuxian_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-your-roblox-account_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-a-free-flip-assasin-roblox_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/buzz-hacked-roblox_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-tiktok-fans_GM835599320.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/explaining-video-free-robux-and-diamonds_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/get-me-free-robux_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-hack-robux-mod-apk_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-money-in-ultimate-driving-roblox_GM431946152.pdf
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/mobilehacks4u-free-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000314a.bin
9792306bb1b7b699ce20ee0f8794f08338023d1d308a4bc4da0bbfaba90434b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x314A 22416 bytes
font_01_sfnt_off000062f8.bin
bda17eedfc7e084af3a5cca25f434e93a480768e71f446ca4eb0faf9d35560c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F8 18464 bytes

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