Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fc4247b75499c5…

MALICIOUS

PDF

39.0 KB Created: 2020-08-22 13:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8688ee4be9448bc1638c6e3b0ba3a99c SHA-1: c184b2b913cf121cbcb3724d23301c689d182cfe SHA-256: 26fc4247b75499c5a7dafbeb30df932bfe95917f43c9769419793fda418ad45b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to external PDF files hosted on various domains, including Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=apache+tomcat+8.+0', is flagged as a malicious redirector. This suggests the document is part of a link farm or SEO manipulation scheme, potentially leading users to malicious content or phishing sites.

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.ru/pify?keyword=apache+tomcat+8.+0
    • http://bidobuxus.peterandpaulapixie.com/uploads/1/3/1/4/131454215/kuduj-lumataw-wenuxewud-bofixev.pdf
    • http://files.jbconsultingandpsychology.com/uploads/1/3/1/3/131398573/b060f4736492.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.pdf
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/tyroil_smoochie_wallace.pdf
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/sepekaxuvesijezexeraj.pdf
    • https://cdn.shopify.com/s/files/1/0440/1148/7397/files/cookie_clicker_golden_cookie.pdf
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/72192535044.pdf
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/sepsis_guidelines_2018_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0437/7745/8334/files/barefoot_investor_step_1.pdf
    • https://cdn.shopify.com/s/files/1/0429/9125/5713/files/sabosifunumibawawar.pdf
    • https://cdn.shopify.com/s/files/1/0434/5164/6119/files/pathfinder_path_of_war_expanded.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_off00005a03.bin
6bf8ee23b59ad646e7e22c42587ce7b0a2076747e6ad7b15a91df105068529c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A03 5224 bytes
font_01_sfnt_off00006bae.bin
c5fbda16b14a8bdf8efb05f1c3da706b06ad7d38b8b506d84ce77d0583099e55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 10164 bytes

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