Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9e3c441c46be058…

MALICIOUS

PDF

42.8 KB Created: 2020-08-14 21:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 824a9f14263d5adca7e6af3116b92829 SHA-1: 4f475b210dd82c67353ec506b8461bf7b9aaa647 SHA-256: a9e3c441c46be05842698ec200c19f7b19e350b3e31826024c9e455040978408
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to obscure the final destination. The document also features a link farm of numerous PDFs hosted on Shopify, likely for SEO manipulation or to host further malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=magnetic+resonance+in+medicine+author+guidelines.

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=magnetic+resonance+in+medicine+author+guidelines
    • http://files.fccswimanddive.com/uploads/1/3/2/7/132740982/1532764.pdf
    • https://cdn.shopify.com/s/files/1/0439/1269/1867/files/39361071827.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/20386210444.pdf
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/sewiluja.pdf
    • https://cdn.shopify.com/s/files/1/0431/5598/0445/files/vavorobipumizofapojiwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/85467846541.pdf
    • https://cdn.shopify.com/s/files/1/0431/2170/5124/files/eloquent_javascript_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3450/files/pugaxeledarubelaxejiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/diary_template_for_onenote.pdf
    • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/pdf_of_animal_farm.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/lapugotika.pdf
    • https://cdn.shopify.com/s/files/1/0438/2959/2214/files/final_fantasy_xii_walkthrough.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_off00006934.bin
74e3dc637e7444e3a000ef5a0a5099cf04d3d184adeb13f7700eb6bdce1bfd9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6934 5356 bytes
font_01_sfnt_off00007b3d.bin
b07d936a3decebaecfd334de10cfa6fb7f7b0ca4184e4159e4b29023aa6fc741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 10312 bytes

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