Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0934b74bd1a239d…

MALICIOUS

PDF

48.5 KB Created: 2020-08-16 15:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7513a5b0cc29b1e353afd3ccc8aa51f8 SHA-1: abe53399ff5c6b51f7d478efae7a546129eba4f9 SHA-256: e0934b74bd1a239d8bf60e6c316b7627987a9ad3ef2384f5c9090b138ac202e6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a link farm or SEO poisoning attempt. The embedded URL in the document body, 'https://ttraff.ru/pify?keyword=springer+journal+format+template', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=springer+journal+format+template
    • http://sidex.charlesharveyauthor.com/uploads/1/3/0/9/130969868/zozuledogokamifewuxe.pdf
    • http://ditejujad.artattoo.co.uk/uploads/1/3/1/1/131164250/bakuxabog.pdf
    • http://rudet.weitzelfinancial.com/uploads/1/3/1/3/131382406/muviputirulizi.pdf
    • http://files.kaylaschmidt.com/uploads/1/3/0/7/130738639/kidarugawe_fokumefakug_pojaliwil.pdf
    • https://cdn.shopify.com/s/files/1/0435/6535/1073/files/cantaloupe_island_guitar_tab.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4434/files/23916478176.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/13599885260.pdf
    • https://cdn.shopify.com/s/files/1/0429/2670/2758/files/house_of_night_marked.pdf
    • https://cdn.shopify.com/s/files/1/0438/4066/7808/files/55644383215.pdf
    • https://cdn.shopify.com/s/files/1/0428/7194/7423/files/20680260627.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/tokipunipifot.pdf
    • https://cdn.shopify.com/s/files/1/0439/0499/1387/files/veposatujizife.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/petiwanedaxilukikagajo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5664/files/lobivosaruxox.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_off000080dc.bin
3afa5fd6e9924c201b82f6d288da3ebe2a417e3d9935b7fda5e220da800b7762		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80DC 5224 bytes
font_01_sfnt_off00009293.bin
6db3998192f2602aba0e0d58d863ad6f70e4cabb70c039373c59345ca387d731		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9293 9980 bytes

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