Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f0e6aa4cba6663…

MALICIOUS

PDF

42.8 KB Created: 2020-08-23 17:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 508d79ebe6a231f7706640a1dfb7628b SHA-1: 7bc6ec32736fa4e7ba3a48e93911088402e6f5ed SHA-256: 29f0e6aa4cba6663ba5fdc550f56963ec8b8622aed59f264d2fd88fede1eca54
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.ru/pify?keyword=guiseley+school+sixth+form+dress+code, which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains this URL and other embedded links, suggesting an attempt to disguise malicious activity under a seemingly benign topic.

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=guiseley+school+sixth+form+dress+code
    • http://files.marksullivan.ca/uploads/1/3/1/6/131606260/jiwofadesubuzerut.pdf
    • http://files.victoriacfontan.com/uploads/1/3/0/7/130775219/8214728.pdf
    • https://cdn.shopify.com/s/files/1/0433/7260/9686/files/wukivarefojin.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/46157244530.pdf
    • https://cdn.shopify.com/s/files/1/0455/4008/1829/files/listado_de_alimentos_con_hierro.pdf
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/48497516586.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/21310477090.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/gafigesuxenososetujined.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/89106640345.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d23.bin
c2fe939b58169129d03717cd298e144e8ebdd8533c95d7391e581f9f7394f966		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D23 5028 bytes
font_01_sfnt_off00006e4c.bin
a55aa409153d36bc4cf6c5382ddb51d7418647516c0db8523d0933c2f7c64675		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4C 10020 bytes
font_02_sfnt_off00009097.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9097 4324 bytes

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