Malicious PDF — malware analysis report

Static analysis result for SHA-256 da02817b5f079134…

MALICIOUS

PDF

39.0 KB Created: 2020-08-28 08:33:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44dfc9b73d8de6df2b810d639c586124 SHA-1: 5a2fc06804890b999191bf717cfa3fed94fca3af SHA-256: da02817b5f07913446c301a807119c222cba9005fcfd04d8f28672460e0ad1a2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a significant portion pointing to a link farm hosted on cdn.shopify.com. One of the primary links, 'https://ttraff.ru/pify?keyword=15+sentences+with+second+conditional', is identified as a malicious redirector. This suggests the document is designed to lure users into clicking these links, ultimately leading them to malicious content through a chain of redirects.

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=15+sentences+with+second+conditional
    • http://suzawuvev.lafontaineumc.org/uploads/1/3/0/7/130776760/gazujotaguwovi.pdf
    • http://fudawa.wetanddrypodcast.com/uploads/1/3/0/7/130739980/vujipe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6880/files/87250340547.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/t5_manual_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/zafidowem.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/role_of_biomarkers_in_environmental_risk_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0465/2780/7646/files/fantasy_football_cheat_sheet_half_ppr_espn.pdf
    • https://cdn.shopify.com/s/files/1/0430/9218/1153/files/gakanagekokeperibe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/wizib.pdf
    • https://cdn.shopify.com/s/files/1/0462/8588/1505/files/android_messenger_failed.pdf
    • https://cdn.shopify.com/s/files/1/0452/5110/0829/files/because_of_you_keith_martin.pdf
    • https://cdn.shopify.com/s/files/1/0435/6797/2515/files/nerovemixir.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_off00005bd0.bin
c7fcf5fa6855c9e30473da3450d2b20893e887ba2eb697e9da70c26e7db86f16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD0 5104 bytes
font_01_sfnt_off00006d3f.bin
e3597a5b970d1091a34e2149882e285e2478f23eb0190a153c920f916598d50d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3F 10004 bytes

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