Malicious PDF — malware analysis report

Static analysis result for SHA-256 9712ce4ec9cd249c…

MALICIOUS

PDF

36.7 KB Created: 2020-08-30 17:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d8827f581e5f780c3aeab18b0d63c5b SHA-1: 574839a25d39d13d8d0f3e0e0c87974b5ba32ba4 SHA-256: 9712ce4ec9cd249c786ad4054b0e87def9cc487ef21489b1083a859d1ae61ceb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting PDF files. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains the text 'A swig of hope' and the malicious URL, suggesting a social engineering lure.

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=a+swig+of+hope
    • https://cdn.shopify.com/s/files/1/0463/9673/5643/files/girl_scout_cookies_growing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/ruratijinalonufesamuwane.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/laxuf.pdf
    • https://cdn.shopify.com/s/files/1/0439/4093/7896/files/dirimixiwubop.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3630/files/six_sigma_book.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e7b5ca34de4477683cca469eae79e17.pdf
    • https://static.usrfiles.com/ugd/ddb60a_5bdf1935b68144ed92f59465282b80fd.pdf
    • https://static.usrfiles.com/ugd/ae059d_ee7d0b57e4c24302946dcd2e115de05e.pdf
    • https://static.usrfiles.com/ugd/e7e4a0_8b5f6cb425324257b9b0397f8bad3021.pdf
    • https://cdn.shopify.com/s/files/1/0435/6335/2227/files/kiwususujujabumos.pdf
    • https://cdn.shopify.com/s/files/1/0435/9703/7730/files/86120934456.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_off0000513a.bin
e35de45cd03892cfed8ac01c6db708055e9eee69f100aabed0348b3a1f3bfbf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x513A 4908 bytes
font_01_sfnt_off0000620b.bin
4b41a4dcd11465413df019b0f7743dd89dbf682bdd60880d2dd0453d5325ba18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620B 10808 bytes

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