Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8deafb98ee3abcc…

MALICIOUS

PDF

84.3 KB Created: 2020-08-13 05:25:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e5a46b6ff28e2ce03a4da3a58d08854 SHA-1: 32808c0f60bb98fbbf4eb375dd4905d2e872fd8a SHA-256: f8deafb98ee3abccea452b943d9fad308d46dfd436fdca03fe4660abd3ca1d41
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same URL. The presence of numerous external links, many pointing to Shopify domains with generated filenames, suggests a link farm used for SEO poisoning to attract victims. The primary malicious URL is ttraff.ru, which is flagged as a 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.ru/wb?keyword=structural%20functionalism%20theory%20in%20political%20science%20pdf
    • http://tijopaxa.sailingforthesoul.com/uploads/1/3/1/1/131164250/56872468.pdf
    • http://files.dawnfeeneyjewellery.co.uk/uploads/1/3/2/7/132740378/kenoretefura-pexaburivixu.pdf
    • http://files.kingwoodmusikgarten.com/uploads/1/3/2/6/132695416/jojobabafeguroj.pdf
    • http://files.edenmillsartsfestival.com/uploads/1/3/1/6/131637527/fabenopezaditon_sazir.pdf
    • http://buvojuw.wahawkbands.com/uploads/1/3/1/0/131070420/buparusebinaru-jidim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdf
    • https://cdn.shopify.com/s/files/1/0432/8561/0651/files/auditoria_financiera_forense.pdf
    • https://cdn.shopify.com/s/files/1/0432/2652/9956/files/gevukopekoniramelinoxipo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6150/0309/files/pdf_file_format_documentation.pdf
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/90333476265.pdf
    • https://cdn.shopify.com/s/files/1/0431/9041/9616/files/65182985716.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/2000/files/zizatalatezoximabikur.pdf
    • https://cdn.shopify.com/s/files/1/0435/2281/8212/files/cctv_camera_system_design.pdf
    • https://cdn.shopify.com/s/files/1/0428/5480/9756/files/10499001311.pdf
    • https://cdn.shopify.com/s/files/1/0452/6401/1421/files/ccim_bams_1st_year_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/poloz.pdf
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/rozuzudulogifaferapo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/kixuro.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1723/files/rapusek.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_off00010df4.bin
55e88065810c6d3208e850ce46429d1fa9b1bd8081085230d541b188199b0a69
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DF4 5600 bytes
font_01_sfnt_off000120d2.bin
8cfa621e8bfa32714c03eb6b26bc41e641bfe2349bb6dafcebb6212197c7812e
pdf-font-stream PDF embedded font (sfnt) at offset 0x120D2 10120 bytes