Malicious PDF — malware analysis report

Static analysis result for SHA-256 20a4674a76325ca0…

MALICIOUS

PDF

42.7 KB Created: 2020-09-18 00:50:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b9f3ee2dfdfa0f6db8374adc1c9d984 SHA-1: 0c166fb56ced1c5e79f3bb3b1953827aa8b1ad8a SHA-256: 20a4674a76325ca0b4fc0f81a25d1ba9961b8a06e92fa2c9ba0f632982c64a43
60 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.me, which is disguised as a manual for a Stromer ST1 X. This suggests a phishing attempt to lure users to a malicious site. No scripts were extracted, but the embedded URL is a high-confidence indicator of malicious intent.

Heuristics 2

  • 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.
  • 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.me/wix?keyword=stromer+st1+x+manual
    • https://86e9112b-665d-466a-a1dc-2a1ce4ee4570.filesusr.com/ugd/694d5d_4e2bf8eedae84bfa824c84b0bc188be6.pdf?index=true
    • https://a40e99c0-5199-4b12-b7ba-bbda87f5f4b0.filesusr.com/ugd/70094d_58337d1c2b5944f2812d54752f7fc3ea.pdf?index=true
    • https://d47d3a32-f1d0-4c8e-8ae4-74a50c86b23b.filesusr.com/ugd/136d3d_aac5219dae08400daebfb0b6de8905a8.pdf?index=true
    • https://77627f2b-8375-4f29-a18e-a343ee2179ec.filesusr.com/ugd/868f76_cf8f58254cb3456886d0dfbec6520a7b.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/lorupazumeguv.pdf
    • https://cdn.shopify.com/s/files/1/0430/7674/7413/files/analogy_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/ludubilizufevutuje.pdf
    • https://cdn.shopify.com/s/files/1/0437/2699/5621/files/decoding_multisyllabic_words_intervention.pdf
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/tectonic_plates_worksheet_answers.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_off00006956.bin
a45f98713dbb20c783882f35671ec132b0814d63042fc9446b306692c7a8f44a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6956 5052 bytes
font_01_sfnt_off00007a70.bin
366b153d59cae7182c6ea9c54f2f95401129afbcf11fd1c27b1e55a890807b5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A70 10604 bytes

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