Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65dc7930c0098d4…

MALICIOUS

PDF

37.2 KB Created: 2020-08-25 16:12:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c0e72fcfcd0b2288cb2d4b47f5e067 SHA-1: d4035ae80199f341f89870b45617d20e1bb82f0d SHA-256: f65dc7930c0098d4b7f8ce03d2b3f0495436bd9030981942658e4f80ecf34aa2
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 critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=oogway+ascends+sheet+music+violin'. This URL is likely used to direct users to malicious websites or download further payloads. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a link farm or redirection strategy. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links within the PDF.

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.cc/pify?keyword=oogway+ascends+sheet+music+violin
    • http://gifum.medinfodoc.net/uploads/1/3/2/7/132710567/xasusepi.pdf
    • http://files.kdmetroeast.com/uploads/1/3/0/8/130874086/sogit_loginajorajinog.pdf
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/piwibi.pdf
    • https://cdn.shopify.com/s/files/1/0440/8036/5720/files/domalo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/49021936572.pdf
    • https://cdn.shopify.com/s/files/1/0431/0591/0935/files/91140702490.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/fameped.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/34197289736.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/cardigan_welsh_corgi_breed_information.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7424/files/lexington_nc_weather.pdf
    • https://cdn.shopify.com/s/files/1/0439/2599/5688/files/osmosis_and_water_potential_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1034/files/malagasy_pronunciation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/anthropometry_journal.pdf
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/tibupaluj.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_off00005268.bin
7d450291da410802dcda041f1608ba8655cb77043ea8c1ca7948c422298da6b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5268 5536 bytes
font_01_sfnt_off00006529.bin
4de6a6491c10d6e24f14ba743048ff50246c2a4d31937d10d4c5df94a25706d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6529 10192 bytes

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