Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9b7cc36172763b1…

MALICIOUS

PDF

49.7 KB Created: 2020-08-17 15:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a1926fd31709dadb8af7807ccca088 SHA-1: ef795cad4fe2a641cf14037b7abba2230bed0571 SHA-256: f9b7cc36172763b16cd929e06eea66cd152ce25daf8c18bfc851d988141d4beb
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it's a malicious redirector, pointing to 'ttraff.ru'. It also exhibits characteristics of an SEO link farm, embedding a large number of external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and several Shopify URLs. The primary attack pattern involves luring users through these embedded links, with 'ttraff.ru' being the most suspicious destination.

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=the+social+network+movie+questions+answer+key
    • http://files.hannkhigg.com/uploads/1/3/1/4/131406182/wejisevuminibebizema.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5137558887.pdf
    • https://cdn.shopify.com/s/files/1/0428/8747/9455/files/84412631916.pdf
    • https://cdn.shopify.com/s/files/1/0434/1766/5703/files/mebesavuberezom.pdf
    • https://cdn.shopify.com/s/files/1/0437/3102/6071/files/blender_deform_mesh_with_object.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/ubuntu_chrome_ppa.pdf
    • https://cdn.shopify.com/s/files/1/0436/5982/1209/files/86785029893.pdf
    • https://cdn.shopify.com/s/files/1/0432/6224/7075/files/maths_questions_for_competitive_exams_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/61117212564.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75901524911.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/descriptive_statistics_and_inferential_statistics.pdf
    • https://cdn.shopify.com/s/files/1/0434/6734/1981/files/introduction_to_bayesian_statistics_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/1320/8226/files/laralaropazegopolumulilux.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000778d.bin
6cde6bba46c094bffaee0183dca4118fae8c10cd80c1456765a7d562b7e7021b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x778D 5312 bytes
font_01_sfnt_off0000898a.bin
497beda855e850f3eb58b88db6a8057a5fdb9ce34081028d492a80bd2b557eb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x898A 9988 bytes
font_02_sfnt_off0000ab96.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB96 4324 bytes

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