Malicious PDF — malware analysis report

Static analysis result for SHA-256 afefec20e82c5408…

MALICIOUS

PDF

37.5 KB Created: 2020-08-23 23:24:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f609d10c59d6261b7be6b7f54f91737 SHA-1: 6890bdc7548e68a045a07f9cd270ae7d03a43f87 SHA-256: afefec20e82c54084c1a7810a38b1f1288066f5ccaf4d83ce6040a8c3d324d8b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=cause+and+effect+reading+and+vocabulary+pdf'. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution. The presence of multiple Shopify links, while some are benign, indicates a pattern of using legitimate platforms to host or link to malicious content. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a social engineering attack.

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.com/pify?keyword=cause+and+effect+reading+and+vocabulary+pdf
    • http://lijizip.justwrite15.com/uploads/1/3/1/4/131454065/b6b0beae59496b.pdf
    • https://cdn.shopify.com/s/files/1/0432/7938/4731/files/zuxopopupexovili.pdf
    • https://cdn.shopify.com/s/files/1/0463/4470/0066/files/sap_s_4hana_1809_security_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/7551/8107/files/88258185182.pdf
    • https://cdn.shopify.com/s/files/1/0440/5847/6694/files/xidixok.pdf
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/movetu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/tegudubuge.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/vatagixenizonuporofodi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/deberikiroxovin.pdf
    • https://cdn.shopify.com/s/files/1/0433/3898/9718/files/interview_questions_and_answers_in_hr_round.pdf
    • https://cdn.shopify.com/s/files/1/0437/3898/8709/files/patekojipexeluxokenolivuf.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_off00005291.bin
43746a2e651444c6a2af7e541474b164b259f2ee1ce16c86309bf36d4ff2dcb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5291 5528 bytes
font_01_sfnt_off00006573.bin
18c7c8d6b14da9d1eedeb610b50297c563c7b69d8fa235cda5404a614a819434		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6573 10464 bytes

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