Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde0b5338fd29426…

MALICIOUS

PDF

45.3 KB Created: 2020-08-20 08:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cf5fc5c5a24e8cfa2740234f9f293e2 SHA-1: 3537a60c815580d82c6b713966cd3f29159295a1 SHA-256: cde0b5338fd29426c7131301eaf28d087a0048e66605dd73202d4d0edd95a174
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=columbus+ga+police+department+reports'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as the primary lure. The file also exhibits characteristics of a link farm, suggesting a broader campaign to distribute malicious content.

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=columbus+ga+police+department+reports
    • http://files.carolcgould.com/uploads/1/3/0/8/130873914/pefovumuduw.pdf
    • https://cdn.shopify.com/s/files/1/0432/9357/3288/files/57369273259.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0774/files/47729911504.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/2016_ps4_game_releases.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48465164240.pdf
    • https://cdn.shopify.com/s/files/1/0431/6472/9512/files/81094635547.pdf
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/42736142210.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4197/files/23662311581.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39843759369.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_off00007196.bin
b6261624b013339277cd88d473fdca3a7fb5b80b85feefdd06ce38d3a439e47f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7196 5436 bytes
font_01_sfnt_off000083f1.bin
51e3d07c964741689ddb00e61da1ac42bb751fccc666c3ee514a62a910c823df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83F1 10676 bytes

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