Malicious PDF — malware analysis report

Static analysis result for SHA-256 7700e72e3be17ae0…

MALICIOUS

PDF

38.6 KB Created: 2020-08-26 09:16:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4147cee6bf3599771135fae1a42b26ac SHA-1: beaf1e7f8a0d19b21964383411b84309ad1597b4 SHA-256: 7700e72e3be17ae0d548c3cb97c60fc9e69cd29e8d99b4ece708dad39a4a4afc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is associated with a lure for 'funky fingers vst free download'. It also exhibits characteristics of a PDF SEO link farm, with numerous embedded links to Shopify-hosted PDF files, likely for SEO manipulation or to host further payloads. The document body contains the same lure text and the malicious URL, confirming the intent to redirect users. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=funky+fingers+vst+free+download
    • http://files.duffdesigns.net/uploads/1/3/0/8/130874050/regaguzogegolabolo.pdf
    • http://wovajovif.gmmartinbooks.com/uploads/1/3/2/7/132712116/fabiwum.pdf
    • https://cdn.shopify.com/s/files/1/0428/3426/4220/files/buzizonixumemuje.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/apa_style_research_paper_example.pdf
    • https://cdn.shopify.com/s/files/1/0430/3192/0794/files/biosynthesis_of_fatty_acids_and_triglycerides.pdf
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/69591182571.pdf
    • https://cdn.shopify.com/s/files/1/0428/7424/1183/files/28310185572.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/autocad_3d_house_design.pdf
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/bikorilibivomobiwi.pdf
    • https://cdn.shopify.com/s/files/1/0436/7243/6889/files/secrets_of_antigravity_propulsion_paul_laviolette.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_off00005962.bin
6927db15bbc2c15db3fdc52ec42acd7878971ef9c4da7c4b8470efd5b671244c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5962 5348 bytes
font_01_sfnt_off00006bc3.bin
532f25305d87ecd72dbf8fce2b0d6faca5620f4988e190c92e47e0c765f5c6e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC3 9972 bytes

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