Malicious PDF — malware analysis report

Static analysis result for SHA-256 491007759f53d3fd…

MALICIOUS

PDF

39.2 KB Created: 2020-08-24 18:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d556b48d910702d6b3367709336fd5c SHA-1: 7911d281311b85095b8a417773737e99312bbb55 SHA-256: 491007759f53d3fd777a5a2977f488db73a667ceaa34d2aae8990b1bc5c758a0
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=5e+factions+guide'. This indicates the document is designed to redirect users to a potentially harmful site. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, suggesting a link farm or content distribution strategy. The presence of numerous external PDF links further supports the idea of a link farm used for distribution or SEO manipulation, ultimately leading to the malicious redirector.

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/pify?keyword=5e+factions+guide
    • http://files.westriseelectric.com/uploads/1/3/1/6/131606490/soriz.pdf
    • http://xiwot.rock-and-crystal.com/uploads/1/3/1/0/131069992/f6d38f.pdf
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/76665717418.pdf
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/arthur_miller_biography.pdf
    • https://cdn.shopify.com/s/files/1/0432/0903/1840/files/68005767012.pdf
    • https://cdn.shopify.com/s/files/1/0450/0019/6264/files/zidemokowabejonizanu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/66026961126.pdf
    • https://cdn.shopify.com/s/files/1/0432/9652/2398/files/xebudegezilifof.pdf
    • https://cdn.shopify.com/s/files/1/0428/9721/1551/files/nudobuzujojuzozem.pdf
    • https://cdn.shopify.com/s/files/1/0435/6957/8147/files/nolagizipopapaxosodeluwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xibirinadinabamagumib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.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_off00005d44.bin
c71b1fb7cb215e22526871d3edeea0624335cd599afaa5ba99c560f3642a65fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D44 5092 bytes
font_01_sfnt_off00006ea2.bin
e3360c328706e3d9b2a404cea88fd08f326ffc44ec67d173f34404c49f050521		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 9920 bytes

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