Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c0a37c04d6e49b…

MALICIOUS

PDF

34.7 KB Created: 2020-08-30 22:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87aa125b673c6a3282acd5629778dd64 SHA-1: 7ed30a9e00770daa3798f3d656bdf55688b0f7a1 SHA-256: 47c0a37c04d6e49bea04386a792e920daabada67ea843507f2aed8f7dff788ba
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a domain associated with link farms and redirectors. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the primary malicious URL, suggesting a social engineering lure to trick users into clicking malicious links.

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.link/wix?keyword=judge+cavenaugh+tifton+ga
    • https://static.usrfiles.com/ugd/b8c837_6c0238f118ca4d269845d0bdfe52e7ee.pdf
    • https://static.usrfiles.com/ugd/b8c837_69b7f69f54454e3f9f877e93227c4a94.pdf
    • https://static.usrfiles.com/ugd/ca300b_eff38f685c4f4687a78fa9c12146576f.pdf
    • https://static.usrfiles.com/ugd/0df15e_4ccfdafdd30146baba25c9b791b2046e.pdf
    • https://static.usrfiles.com/ugd/b8c837_3a85237944c9407db442d056a75f016f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a92d42216cc743a0b9f5fe05ed83bb02.pdf
    • https://static.usrfiles.com/ugd/b8c837_cec5fffabf6c46e29bee0d0afaadb69c.pdf
    • https://static.usrfiles.com/ugd/b8c837_d50a6f3fbc174090b007423b66107f7a.pdf
    • https://static.usrfiles.com/ugd/314c35_c8a9b7a5000842f0a506a6f4d09a5783.pdf
    • https://static.usrfiles.com/ugd/e5a943_dd4dc5dfa62447709a6175acab7616d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_bd1a8274c51f454a8fef573f351975b6.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/josaxinirefesatekonita.pdf
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/imagenes_para_colorear_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0462/8132/6752/files/96961225216.pdf
    • https://cdn.shopify.com/s/files/1/0437/8220/9698/files/very_british_problems_book.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_off00004c29.bin
e21cb5f2b757e26cfd8ce48a94129dcfec798de335c9edd1025cbbfb7a6299e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C29 5024 bytes
font_01_sfnt_off00005d46.bin
7f943107ef5c1da740081942abc63189eeb350934541d076d9929afabdae7f3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D46 9652 bytes

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