Malicious PDF — malware analysis report

Static analysis result for SHA-256 649d3eacabf851f6…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 16:56:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 02f79b3136fd79b86dfed8e84f7405f7 SHA-1: 6b4085f6de27bbaa904049039f40ce5b6f056ca5 SHA-256: 649d3eacabf851f6dc3dddbef472507a2d171cfe6b3bf27b1bec45d21ef224e9
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a document body that promotes game hacking and free in-game currency, indicating a lure for users to download potentially malicious content. The presence of a large number of external links and a high ML classifier score strongly suggest malicious intent. The primary attack vector appears to be directing users to external sites that likely host malware or phishing content.

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/how-to-hack-rb-world-2-roblox-game-hack
    • http://lib.mappifhui.org/repository/roblox-lumber-tycoon-2-pc-hack_GM431946152.pdf
    • http://lib.mappifhui.org/repository/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://lib.mappifhui.org/repository/coin-master-free-spins-link-app-download_GM406889139.pdf
    • http://lib.mappifhui.org/repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdf
    • http://lib.mappifhui.org/repository/coin-master-free-spin-link-list_GM406889139.pdf
    • http://lib.mappifhui.org/repository/can-you-actually-get-free-robux_GM431946152.pdf
    • http://lib.mappifhui.org/repository/robux-matchcomfree-robux_GM431946152.pdf
    • http://lib.mappifhui.org/repository/download-hack-coin-master_GM406889139.pdf
    • http://lib.mappifhui.org/repository/roblox-hack-script-admin-weapon_GM431946152.pdf
    • http://lib.mappifhui.org/repository/free-roblox-accounts-dump_GM431946152.pdf
    • http://lib.mappifhui.org/repository/minecraft-account-hacked_GM479516143.pdf
    • http://lib.mappifhui.org/repository/oprewards-com-robux_GM431946152.pdf
    • http://lib.mappifhui.org/repository/how-to-get-any-costume-for-free-in-roblox_GM431946152.pdf
    • http://lib.mappifhui.org/repository/free-robux-bux-gg_GM431946152.pdf
    • http://lib.mappifhui.org/repository/rbxfree-com-free-robux_GM431946152.pdf
    • http://lib.mappifhui.org/repository/roblox-hack-exploit-troll_GM431946152.pdf
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdf
    • http://lib.mappifhui.org/repository/free-robux-without-human-verification_GM431946152.pdf
    • http://lib.mappifhui.org/repository/coin-master-free-gift-link-2021_GM406889139.pdf
    • http://lib.mappifhui.org/repository/coin-master-daily-free-spins-link-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f1b.bin
73e54a351ee88a34cb339848e2d9abc900c54c0b513db2673221e02ca5165e5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F1B 22424 bytes
font_01_sfnt_off00006136.bin
66e7c20183ffa5e91e93b3c0affce7c668e3120f7307ae1d77d03780e306abbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6136 19316 bytes

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