Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2867ef72be2911…

MALICIOUS

PDF

35.3 KB Created: 2020-08-31 15:08:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3eacdbce4d00b335956580b88b122a65 SHA-1: 99a4a2cc06dbc743fb29bc87de41a6761074b6a8 SHA-256: 8e2867ef72be29117a83d785a78980b2b7fb71ada6f7d79d518a08f78df1273b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though partially corrupted, contains this URL and references a 'beauty therapist job application form', indicating a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify and static.usrfiles.com domains, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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=beauty+therapist+job+application+form
    • https://cdn.shopify.com/s/files/1/0433/5425/9606/files/98846491860.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boguxexu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6464/6042/files/informational_business_report_template.pdf
    • https://cdn.shopify.com/s/files/1/0460/3494/4159/files/poker_odds_calculator.pdf
    • https://static.usrfiles.com/ugd/469aea_c168964ce6c0449487251561aa9e51a6.pdf
    • https://static.usrfiles.com/ugd/902d29_4d3e73251171470e9f80bd92477fb202.pdf
    • https://static.usrfiles.com/ugd/8b49c6_c93302f1e84345bba04d90895eb41004.pdf
    • https://static.usrfiles.com/ugd/f0e51d_b641bb472d3d4250af6c89c86f16d6a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3635a1af29d649b2bb88033299c6ccbd.pdf
    • https://static.usrfiles.com/ugd/b8c837_da0e981594ba4776892747714e25d664.pdf
    • https://static.usrfiles.com/ugd/575363_92514822d3ab482b941325f2a36ea097.pdf
    • https://static.usrfiles.com/ugd/bae363_3343654335c04fcf989431d19307cf93.pdf
    • https://static.usrfiles.com/ugd/b8c837_fd0ce4da3a354f04baf23d742bfe07a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_6263b29036f743c0a76294c39c240abd.pdf
    • https://static.usrfiles.com/ugd/857e61_1a3abc17182f4276b8af8166ad506833.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_off00004b41.bin
468a1ec62ad6b003bd0e20daa6c06694845347481c49b77883f0ba32255a2c37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B41 5624 bytes
font_01_sfnt_off00005e3f.bin
1bb4f0482379b1d56a6b59744fa1641be2d4c3406a0152d0296fb4ac8e0bf1d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3F 9952 bytes

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