Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd08efefb6e46a22…

MALICIOUS

PDF

42.1 KB Created: 2020-09-01 14:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 061dad0151aa2abfa813c0c75bb4981e SHA-1: e01134c32223d4ed7dab946e1a3a3f2440ed9887 SHA-256: cd08efefb6e46a22bd7fe8540a449bd29d6fe828c8fc818abae353762f8da4fe
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to SEO-optimized PDF files hosted on Shopify and static.usrfiles.com. One of the primary links redirects to a known malicious domain, ttraff.cc, suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=fabric+softener+sheets+dogs
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/jakurizeja.pdf
    • https://cdn.shopify.com/s/files/1/0429/6789/2131/files/78958441117.pdf
    • https://cdn.shopify.com/s/files/1/0434/0187/1512/files/giposiripokejefi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6176/2456/files/bofazupomidavikonubidu.pdf
    • https://cdn.shopify.com/s/files/1/0439/8972/9438/files/florida_arrests_org_brevard.pdf
    • https://static.usrfiles.com/ugd/1d64af_1c16740770c54aa18f2c22263d0f280c.pdf
    • https://static.usrfiles.com/ugd/909b15_3f6b7418f563430cafd3162b9e4c5418.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ed5dcf84bea4e1887ed27bc043eac2f.pdf
    • https://static.usrfiles.com/ugd/ef7b09_cf352ecac4f9406f9c5dd37280fcab59.pdf
    • https://static.usrfiles.com/ugd/a48928_afcb077e0805494f88849707cf183577.pdf
    • https://static.usrfiles.com/ugd/b8c837_ac906ab6db68407e91c2fe143e45bde9.pdf
    • https://static.usrfiles.com/ugd/b8c837_65935f0f44a7452cbeb395df8629532b.pdf
    • https://static.usrfiles.com/ugd/07e02c_91ce44a6af0a4ca2a826a82a45ba695e.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_off00006744.bin
387de614aba802bddbf5fe7cadfc1fce67a0df2db6d339b45810fbeacc1a13f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6744 5344 bytes
font_01_sfnt_off0000796c.bin
79279395b016bd4a835ad8e0a739c040c908d44a03f90366a08a4acb0776b36b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x796C 10120 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.