Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee0cc3d0d4ad45e7…

MALICIOUS

PDF

104.1 KB Created: 2020-09-01 11:28:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bd732ae173de12aa0ef30d05c3e3bd0 SHA-1: 1a556a412e85d8608ffb785ccfafb65cea7a3de8 SHA-256: ee0cc3d0d4ad45e7d988586f03c7fc5a82b46b9c5c47dcb2e43f8ee3da65fb04
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=law+commission+cohabitation+report', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to lure users to this malicious site. No scripts were extracted, but the link farm and redirector indicate a likely phishing or malware distribution attempt.

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=law+commission+cohabitation+report
    • https://static.usrfiles.com/ugd/7d21c0_0d1c6f6cd1314b7096a5cab099423cd8.pdf
    • https://static.usrfiles.com/ugd/32acb1_eb9c9bbb0efd468eacab3f62b1d4fe60.pdf
    • https://static.usrfiles.com/ugd/b8c837_72352fd0c4b34e00962835f64b96ee3c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce0eb75b390749449b9ce8ebc3cee67d.pdf
    • https://static.usrfiles.com/ugd/3b7182_5084eff30a894f2d96ff503f768fa159.pdf
    • https://static.usrfiles.com/ugd/b8c837_c080850913a1470aabe575ec17ed4d95.pdf
    • https://static.usrfiles.com/ugd/fbccce_f4565888bdf64771be63adb2a69510de.pdf
    • https://static.usrfiles.com/ugd/79e0dc_4bfc5f116fee469985d8efccf2c44f38.pdf
    • https://static.usrfiles.com/ugd/0f5b72_27875f21ef304c04866f36d40e24db04.pdf
    • https://static.usrfiles.com/ugd/87d215_a7c932d5f3cd4a0cb6f1a603eb7c6f92.pdf
    • https://static.usrfiles.com/ugd/5a1791_7fb3805780cc463fb1b2a343cb852493.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c6160b6537646af81d48374e8119561.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_off00015d9b.bin
7cad6e87b73a31496b0d8ca43ede252863fac2c06dee98eafccd82e32baff377		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15D9B 5312 bytes
font_01_sfnt_off00016f94.bin
520964bec9fd603d13e0ea6ac4e3b1c6bf8d82abc949b11d4300978980db3837		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16F94 10376 bytes

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