Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9cf0991cce3453…

MALICIOUS

PDF

39.9 KB Created: 2020-09-02 13:17:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a078a20165feef816b0b73e489fa58a SHA-1: 1a52518846bf3cdc4d3a5671e26e963d7476cb3e SHA-256: ce9cf0991cce3453fc70b8b85aee580dfd4c3628553a40b63824848e37ae3a36
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious URL, disguised as an 'injury report'. This suggests a phishing or social engineering attack aimed at tricking the user into visiting a harmful site. The PDF also hosts a large number of other PDF links, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the primary malicious behavior is the redirection to the ttraff.ru domain.

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.ru/pify?keyword=joe+gomez+injury+report
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/rimidegu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/13987732457.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/free_general_contract_for_services_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/lerini.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2190/files/91341802256.pdf
    • https://static.usrfiles.com/ugd/0aab01_395949efd1354f648e2354696e5f5484.pdf
    • https://static.usrfiles.com/ugd/9b5f63_fe92ce3f323a4db2becdcf9b154cfcd9.pdf
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/intec_assignment_cover_sheet_word_document.pdf
    • https://cdn.shopify.com/s/files/1/0446/9224/2588/files/sap_basis_certification_dumps.pdf
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/artificial_intelligence.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/43870422687.pdf
    • https://cdn.shopify.com/s/files/1/0439/2206/3515/files/shrek_s_thrilling_tales.pdf
    • https://cdn.shopify.com/s/files/1/0437/6012/4061/files/42004341863.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_off00005edb.bin
4f1ccbd9e17126e7da6eba2e21b386d4a02766551d56258df229edd061a85660		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDB 4936 bytes
font_01_sfnt_off00006fac.bin
5e154d3667a6042beb77c7d1360cef284ddffc1d4c2d68aecb1024369deb9e66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAC 10468 bytes

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