Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e002b4235ec689b…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 08:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 686ace10b47b63a548021dedb14c854d SHA-1: a5760455c000266c8c9670d3fa57a9446c953e3c SHA-256: 8e002b4235ec689bf723650add582e3c0ec80a2d531ac8dd0cfdffe7b3659e7c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file contains a large number of embedded external links, with a critical heuristic firing indicating a 'PDF_SEO_LINK_FARM'. One of these links, 'https://ttraff.cc/wix?keyword=r%25C3%25A9%25C3%25A9criture+discours+direct+indirect', is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking these links, which likely lead to malicious sites. No scripts were extracted, and the document body was heavily obfuscated.

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/wix?keyword=r%25C3%25A9%25C3%25A9criture+discours+direct+indirect
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/24991054193.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/49449210111.pdf
    • https://cdn.shopify.com/s/files/1/0430/8058/1274/files/43157270452.pdf
    • https://static.usrfiles.com/ugd/ecec20_e9405ced331345398e4566b0361966a5.pdf
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/81637796949.pdf
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/39861341667.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1384/files/apgli_enhancement_application_form.pdf
    • https://static.usrfiles.com/ugd/d4da64_e8dde384ff0c4d27b5caff8554b63a13.pdf
    • https://static.usrfiles.com/ugd/b8c837_a69c188e6dac4e05bb7d09d2ebeec3c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7eaab494c2c649598140e8a8cbc426e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_3e6028287d0e476e80f2e59dde7dd58e.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_off000064f2.bin
263a7e071a188dd84829ab65df8c5afabbbcdd69b6268629d56bfaeec11a3e97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F2 4840 bytes
font_01_sfnt_off0000752f.bin
7e7e80c496bdc22737208ba170bb1460e4f2bf66910b18faca8a7cd438542784		 pdf-font-stream PDF embedded font (sfnt) at offset 0x752F 12596 bytes

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