Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe2295cd3f3fddf…

MALICIOUS

PDF

33.7 KB Created: 2020-08-09 04:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e0e444751947a50e880ec78631fa73d SHA-1: a9cd6f7be53e432d75b769220db3522b2e8a9331 SHA-256: bbe2295cd3f3fddfaa447002e57814e33d4f9d0135372fa4cc67d68afce1b377
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious URL, 'https://ttraff.ru/pify?keyword=aruarian+dance+piano+pdf', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to the malicious URL and other embedded links, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation.

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=aruarian+dance+piano+pdf
    • http://files.scootjoe.com/uploads/1/3/2/6/132682833/e963b0616.pdf
    • http://files.soundcityreading.net/uploads/1/3/2/6/132696113/86cab.pdf
    • http://manexa.kerryeliasmoore.com/uploads/1/3/0/7/130776262/menas.pdf
    • https://cdn.shopify.com/s/files/1/0434/4207/7852/files/payson_az_weather_forecast.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/44064431386.pdf
    • https://cdn.shopify.com/s/files/1/0432/3042/9346/files/56137563109.pdf
    • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/the_pardoner_s_tale_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/gotuzawolituvupuvovuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/6903/1078/files/29084578497.pdf
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/musenajefidojadesesakej.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/48607717890.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/69115708669.pdf
    • https://cdn.shopify.com/s/files/1/0434/2648/0295/files/guxusobirulidididudodem.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4827/files/tulofilofuda.pdf
    • https://cdn.shopify.com/s/files/1/0438/5678/9664/files/jibajakekulanatalopuvutif.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_off00004891.bin
cbf1158a36dd57c0a2a3f08f9fa3759f67cbd073535fd329a8e0d7f79e2ad74f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4891 4928 bytes
font_01_sfnt_off00005967.bin
5cbffe6335f9452e572a0a9fb49940bbb469c43bbb04cf247a32d43e812ee56f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5967 9520 bytes

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