Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1568f56506a6e29…

MALICIOUS

PDF

38.6 KB Created: 2020-08-31 23:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8665ebe8558470e99a2d2137d5551f09 SHA-1: 4db8d761d59c607f302b957a3e9c40972bf52928 SHA-256: f1568f56506a6e29733a59909dd73d054a903b6f24580481c30eae3c2d61a720
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to 'https://ttraff.club/wix?keyword=vba+code+to+set+active+worksheet', which is likely used to deliver a malicious payload or conduct phishing. The document also exhibits characteristics of a link farm, with numerous embedded links to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content through a seemingly benign platform. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of malicious intent.

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.club/wix?keyword=vba+code+to+set+active+worksheet
    • https://cdn.shopify.com/s/files/1/0438/5076/0357/files/80762063820.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/6405295840.pdf
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/44335862534.pdf
    • https://cdn.shopify.com/s/files/1/0440/3675/1525/files/55170325133.pdf
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/dotonbori_eating_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/aafp_feline_vaccine_guidelines_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/53893500350.pdf
    • https://cdn.shopify.com/s/files/1/0436/1220/9309/files/96243669803.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/38541873034.pdf
    • https://cdn.shopify.com/s/files/1/0428/3373/9932/files/cheran_pandiyan_movie_songs_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70282461387.pdf
    • https://cdn.shopify.com/s/files/1/0434/6668/6617/files/6017633026.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jatebilebasa.pdf
    • https://cdn.shopify.com/s/files/1/0436/0706/4734/files/bigasoft_er_pro.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_off00005b0a.bin
c9c67ef84f93b62b3dba7a707bb571258ba709d9562c47c853d571c9afad79fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0A 5316 bytes
font_01_sfnt_off00006d2a.bin
964991b94271375db1062cd72da7275bc8173c36f3b1ac8de7ae1d507f83b7cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2A 9580 bytes

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