Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d0174fefba9967d…

MALICIOUS

PDF

39.9 KB Created: 2020-08-20 12:25:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c9b3a02aece04b779054ee6d8163f4d SHA-1: 4ab1bebdd4b1af54635d8645ce34098d92e2a39d SHA-256: 1d0174fefba9967da176fceddc8786fe5216c7174cecbf68e4fb564d7b30a34a
120 Risk Score

Malware Insights

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

The PDF document contains a link farm with multiple external links, including one to a known malicious redirector. The primary malicious link is 'https://ttraff.ru/pify?keyword=chrome++32+bit+offline', which is likely intended to trick users into downloading malware by posing as a legitimate software update. The document body, though heavily obfuscated, contains this URL, reinforcing its malicious intent.

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=chrome++32+bit+offline
    • http://files.morrinsvillecountrymusic.com/uploads/1/3/0/9/130969297/milezirimufataja.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/xezinizuxegabinixujukosa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/99296532146.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/xigezotiwaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/womoxufamawozijegukesa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6626/9597/files/66475986705.pdf
    • https://cdn.shopify.com/s/files/1/0436/3150/9664/files/87676136651.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/rokozi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33078626275.pdf
    • https://cdn.shopify.com/s/files/1/0439/2127/7096/files/cabazitaxel_package_insert.pdf
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/xefizakapatozeta.pdf
    • https://cdn.shopify.com/s/files/1/0435/4516/5975/files/banoburowarubovuve.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_off00005fc4.bin
099d565626b0d0feaa3475873b771e2376481861dd9781aa70893f70c4c0d396		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC4 4960 bytes
font_01_sfnt_off00007089.bin
fc62e74c0c006ea0a82ef5335d7a21b3f25cc561480f6c707d6839cf23eb49f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7089 10060 bytes

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