Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dfdacb6d4d74249…

MALICIOUS

PDF

42.3 KB Created: 2020-08-03 19:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 842327ecb92e15efff0236460ec9e4aa SHA-1: edad769f610a4a8af1a0efc6a3cad6875a651a95 SHA-256: 9dfdacb6d4d74249ecdfc87d86e363362cf047d957eb99561f0d52000540bf65
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'illicit financial flows' and the tool 'wkhtmltopdf', suggesting a lure to a malicious site. The presence of a mass external PDF link farm further indicates a malicious intent to distribute content or redirect users.

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=illicit+financial+flows+in+zimbabwe+pdf
    • http://files.pansqip.org/uploads/1/3/2/6/132695568/5115215.pdf
    • http://files.stdavidssociety.org/uploads/1/3/2/3/132303019/6694979.pdf
    • http://files.marketmovesmatt.com/uploads/1/3/1/0/131070888/pabevomupibe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8318/5832/files/wesebupotalizebatigujugaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/57083539065.pdf
    • https://cdn.shopify.com/s/files/1/0432/2725/0850/files/daxurizebetotolez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/siwizobudavegi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/26022656630.pdf
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/dikoxetudeput.pdf
    • https://cdn.shopify.com/s/files/1/0439/3231/9912/files/36309659820.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/wowobizutogemeboxagaliju.pdf
    • https://cdn.shopify.com/s/files/1/0428/8364/5599/files/kikisagataxedik.pdf
    • https://cdn.shopify.com/s/files/1/0434/5282/5750/files/29064798272.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1864/files/nosilatibugujago.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_off0000654b.bin
2b53639fd09dc2274956687f078d9d052494e9ce91230b8bcb62b39178662ade		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654B 5424 bytes
font_01_sfnt_off000077c8.bin
dfcc9887ced20d2a559f73105ea31b3390199d3eb512598a8ccd561f87667262		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77C8 10776 bytes

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