Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f76f9d5b251a287…

MALICIOUS

PDF

50.6 KB Created: 2020-08-31 05:45:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48ea41d71cdca15e0e9f482a96c3b7f5 SHA-1: e00806b3b76fe0fdfaa3382352aa37b4e5edbff2 SHA-256: 1f76f9d5b251a287c2e66684b66aa8b6e8fdd36ccbd231aaabe86b2251e85338
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=format+factory+portable+fran%25C3%25A7ais'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains text related to 'Format factory portable français' and the redirector URL, suggesting a lure to download potentially unwanted software or lead to further malicious content.

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/wix?keyword=format+factory+portable+fran%25C3%25A7ais
    • https://cdn.shopify.com/s/files/1/0434/9136/0934/files/73279675499.pdf
    • https://cdn.shopify.com/s/files/1/0433/4954/1017/files/a_gift_of_fire.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/71917534930.pdf
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/al_quran_full_bangla.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/juduxiwikatimo.pdf
    • https://static.usrfiles.com/ugd/6846fe_a0a73b7220f34649b2fb201c672e86f1.pdf
    • https://static.usrfiles.com/ugd/8a419d_64da551cb6c54a56bff63761cbe2bd73.pdf
    • https://static.usrfiles.com/ugd/b8c837_cbac040239c144b69e7ab5f200ec356c.pdf
    • https://static.usrfiles.com/ugd/c1615c_d5cf7c4763754b3d8e2da304c6dd3010.pdf
    • https://static.usrfiles.com/ugd/234f58_f86ce64a63324cbf95f1953d4e8eab5b.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/54580083746.pdf
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/79392559491.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_off000085fc.bin
555efd285c495a0c7c6939c26fbd6af59d2c7c189f5c1b6a2a1d8ee10cb007f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x85FC 5540 bytes
font_01_sfnt_off0000987e.bin
29474713286fc71c8a0bb5fb50dcca95ec6ac1b204dc132db28e20bf09991f26
pdf-font-stream PDF embedded font (sfnt) at offset 0x987E 10344 bytes