Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c194d7c146f78b1…

MALICIOUS

PDF

42.7 KB Created: 2020-08-28 00:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c2b9e5ac578247add821f861141f83b SHA-1: 78e2744b81574f9dc85b021344541847d2f47a41 SHA-256: 2c194d7c146f78b190eac7c21b0cc03ef6f68104341d41ad8e8e69781c8454db
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=duke+nukem+forever+graphics+mods', suggesting a lure to a malicious site. Another heuristic indicates a PDF link farm, further supporting the malicious intent of redirecting users to external content. The presence of numerous shopify.com links, while some are benign, are part of a larger pattern of link farming.

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.com/pify?keyword=duke+nukem+forever+graphics+mods
    • http://files.americancollegegenerosity.com/uploads/1/3/0/7/130775707/wimorumax.pdf
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/kibisiwesa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rowogumidakedodovejizana.pdf
    • https://cdn.shopify.com/s/files/1/0436/1011/2163/files/renifokikivexibat.pdf
    • https://cdn.shopify.com/s/files/1/0430/2831/6313/files/funoxusojokinukolo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3029/0327/files/52670806337.pdf
    • https://cdn.shopify.com/s/files/1/0430/3188/8035/files/11652066667.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/magia_cabalistica_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/duvefimimotu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/t_c_s_company_information.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_off000063aa.bin
a5ca58c103b961e9ea6179348e3995bfe9f7384b3b6c2e37cf48fa0df128caf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63AA 5660 bytes
font_01_sfnt_off000076da.bin
69c69a8af7e1f01a876824c7bf4eed434cbbc80432055fda2a7d7f8b5a0af3a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76DA 12076 bytes

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