Malicious PDF — malware analysis report

Static analysis result for SHA-256 2247587908dd4803…

MALICIOUS

PDF

40.4 KB Created: 2020-08-27 14:21:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad8295c71cc267241bf6cee1175d6a73 SHA-1: ae240963ccba175bb84a1b5760b1157ad256c409 SHA-256: 2247587908dd480359e3fbdc81fc3c88a89b0176a27affb906017cb78f2a0183
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=prince+florian+age, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=prince+florian+age
    • http://jefixelo.trosno.com/uploads/1/3/0/8/130874422/9b537f.pdf
    • https://cdn.shopify.com/s/files/1/0434/6894/7616/files/lisezamobop.pdf
    • https://cdn.shopify.com/s/files/1/0433/7991/6963/files/18744780716.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/bojokupekidosavu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3391/0681/files/avicii_without_you_song_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8171/8165/files/problemas_psicologicos_en_el_adulto_mayor.pdf
    • https://cdn.shopify.com/s/files/1/0437/9266/2688/files/independent_and_subordinate_clauses_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/5800/4117/files/90659053438.pdf
    • https://cdn.shopify.com/s/files/1/0434/7926/9541/files/67878342649.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/pdf_to_word_converter_cracked_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0435/7039/7339/files/82709556829.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_off000061f1.bin
b6926ebe676b029c253fc92afe87172355316f13b05139e993c75a820caa172b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61F1 4872 bytes
font_01_sfnt_off00007287.bin
76f5528e12d4ed736ad64a601ffc0f1a884f938199c965055aa3dcca74543448		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7287 10120 bytes

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