Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d60909c1f47272e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-14 08:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aae66ed4b6ecc3dbb02411f9026d03a SHA-1: 5220c076d56430a86d06ce9258cb93053e6e206c SHA-256: 4d60909c1f47272e3b1a2e482cecc1a4cfdaefde033570f08f8f8cf524014678
120 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.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the target URL and other embedded URLs, suggesting a phishing or social engineering attempt. The presence of multiple external PDF links further indicates a link farm strategy to distribute malicious content.

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.cc/pify?keyword=kdigo+guidelines+for+anemia+in+ckd
    • http://files.semiconductorplatform.com/uploads/1/3/2/7/132740804/firekozilikitafo.pdf
    • http://files.justinecandoit.com/uploads/1/3/1/4/131453156/9813528.pdf
    • http://files.halfbakedrant.com/uploads/1/3/1/8/131871569/zolizunuwi-pamexoniperu-gijufiwumeso.pdf
    • http://files.hhfoodandwine.com/uploads/1/3/2/8/132815220/1980652.pdf
    • http://files.jamiegracehair.com/uploads/1/3/1/8/131856476/gapisaforagen.pdf
    • https://cdn.shopify.com/s/files/1/0437/7794/9848/files/91192111536.pdf
    • https://cdn.shopify.com/s/files/1/0440/5071/0693/files/rerixebulutukasiwewowuda.pdf
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/javelijedawi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82191842179.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/90566664761.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/gifujawaxutuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/48555581327.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4679/files/cardiovascular_physiology_concepts_richard_e_klabunde.pdf
    • https://cdn.shopify.com/s/files/1/0429/0566/5703/files/rowasoxemowugebixavoro.pdf
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/77757080768.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_off000065a2.bin
4fee047408344925bca6e4f1ae1a02c64670f3721f5a8570579e0a46a8c720f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65A2 5376 bytes
font_01_sfnt_off000077d1.bin
fc534e86f5e1307bf7f8627aa7f20c94e35cb9627551f68c1d2a9eb17f2a407d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D1 9888 bytes

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