Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b5091e52375b14f…

MALICIOUS

PDF

51.3 KB Created: 2020-08-16 00:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45f546cf2d834501295202d673618a6a SHA-1: bc4503874f315e6685a03e8d8df0d4dce7fbf909 SHA-256: 3b5091e52375b14f50513c2f04914df93c3d0b63ae12e27ef9451f7680579196
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=lol+tft+items+cheat+sheet'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure under the guise of providing useful information.

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=lol+tft+items+cheat+sheet
    • http://dopapavit.projectusandthem.com/uploads/1/3/1/8/131856746/gekatojerarigix_xexivagasowole.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/17352327458.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdf
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/actine_trat_bula.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/30894591412.pdf
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/17456361827.pdf
    • https://cdn.shopify.com/s/files/1/0439/7416/4638/files/67850689388.pdf
    • https://cdn.shopify.com/s/files/1/0429/1290/7427/files/203200760.pdf
    • https://cdn.shopify.com/s/files/1/0432/6634/3072/files/14419256731.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1793/files/64911531408.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0985/files/nomanabegorizebolawa.pdf
    • https://cdn.shopify.com/s/files/1/0452/2527/9648/files/csi_almanac_2020_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0440/6365/4040/files/49381914901.pdf
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/89078549757.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_off0000801e.bin
1deb99ad687beafaf318078f3f226140ca440e330c032d50643486f03c57ed29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 4964 bytes
font_01_sfnt_off000090ea.bin
61e010f5eeb1246d72c749b2a7b2671ba4989b2fa4b464c2d471dd0544c0d684		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90EA 14756 bytes

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