Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9c703f7c0fd05a9…

MALICIOUS

PDF

76.2 KB Created: 2020-08-08 03:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58b5512b89d04359d66927f5ab5e20a8 SHA-1: 1a56f938305ed41d4c345c0a0e67daa6b5aceb5e SHA-256: c9c703f7c0fd05a951e8d8b919059486bad3f86f1fb69c77b61c0265259e55a4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a deceptive document body and a critical heuristic firing for a malicious redirector link. The primary link, 'https://ttraff.cc/wb?keyword=copy%20pdf%20into%20excel%20vba', is identified as malicious and likely leads to further compromise. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external content, suggesting a broad distribution or SEO-poisoning tactic.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.cc/wb?keyword=copy%20pdf%20into%20excel%20vba
    • http://files.squarepegnation.com/uploads/1/3/1/3/131384306/ripigulowu_xamogeze_xaxajadozudomib.pdf
    • http://vilopateg.robynabramsmosaics.com/uploads/1/3/2/6/132695615/7395446.pdf
    • http://files.theallstarsgroup.com/uploads/1/3/0/7/130776037/puxabebotuz.pdf
    • http://files.mychristianoccasion.com/uploads/1/3/2/7/132711966/bomedu.pdf
    • http://files.tamimurphy.com/uploads/1/3/1/3/131381078/zibazesarutoj_watozufisema_zigabuzala_bonirot.pdf
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/68057593173.pdf
    • https://cdn.shopify.com/s/files/1/0432/6775/2100/files/femuxotetuxomodop.pdf
    • https://cdn.shopify.com/s/files/1/0435/8835/4207/files/podisejivelepabovovepimub.pdf
    • https://cdn.shopify.com/s/files/1/0430/6485/2634/files/pixosetuwonunu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1562/7175/files/44476192262.pdf
    • https://cdn.shopify.com/s/files/1/0452/6263/5168/files/centrales_trmicas_de_ciclo_combinado_teora_y_proyecto.pdf
    • https://cdn.shopify.com/s/files/1/0435/0754/8326/files/pocket_morty_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/83231281410.pdf
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/8010828993.pdf
    • https://cdn.shopify.com/s/files/1/0431/3671/2861/files/36081284763.pdf
    • https://cdn.shopify.com/s/files/1/0437/5920/6549/files/abu_dhabi_map.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec25.bin
606f0bb9cf5f7d02dd91a4309e47adedfc744ef2699ae65b5f25fee605677ce4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC25 5148 bytes
font_01_sfnt_off0000fdcd.bin
ca89dc5d422dd8d2f22c8b9dc3c02046b149af160d2801c3ffdb41331e865683		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCD 11192 bytes

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