Malicious PDF — malware analysis report

Static analysis result for SHA-256 f004c7a5836f2c0c…

MALICIOUS

PDF

34.6 KB Created: 2020-09-01 03:28:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b0d22e6a222e8ba72ee030538ac1074 SHA-1: 505a752f1956cbb98e3ca16e162a04f1c6479580 SHA-256: f004c7a5836f2c0ce4a7f427d57881e01d0116acd8a0a8092333935a9d259576
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a link farm containing numerous external links. One of these links, 'https://ttraff.ru/wix?keyword=missguided+bardot+fishtail+midi+dress', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL and references to other Shopify-hosted PDFs, suggesting a coordinated effort to distribute malicious content or phish 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/wix?keyword=missguided+bardot+fishtail+midi+dress
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexanenivoxepabulolud.pdf
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/67148349388.pdf
    • https://cdn.shopify.com/s/files/1/0436/2423/5170/files/wotujirixepisezuzupejolu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9518/5821/files/kuvilixeje.pdf
    • https://static.usrfiles.com/ugd/a76634_036db02bc422467186fbecd96ec403d4.pdf
    • https://static.usrfiles.com/ugd/b7082a_7935ee9925cf44d8820f5d50e4021ebb.pdf
    • https://static.usrfiles.com/ugd/b8c837_ed2dee4742844a929bfc208d5f93cb2a.pdf
    • https://static.usrfiles.com/ugd/bf650e_f49e50fc5cea41049f986da9c301e685.pdf
    • https://static.usrfiles.com/ugd/6203b9_caefff72634141bb89846c6cf927f989.pdf
    • https://static.usrfiles.com/ugd/8b49c6_7d63456cf3aa4a1d998e6f992274ae61.pdf
    • https://static.usrfiles.com/ugd/5a1791_3aea57c9005c4c4f95eea81fe831ab26.pdf
    • https://static.usrfiles.com/ugd/87fdc7_e8db4ed40f1947adb3130b179bf691de.pdf
    • https://static.usrfiles.com/ugd/b8c837_534f01251945428bbf863bea53b52996.pdf
    • https://cdn.shopify.com/s/files/1/0429/1382/4927/files/94829929398.pdf
    • https://cdn.shopify.com/s/files/1/0431/1017/0786/files/jeteketejupavexafuzo.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_off00004869.bin
61060e57f1f4195f27c6ac53a2bcb6de035f1e142974dc0875fab88bb72ba3de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4869 5468 bytes
font_01_sfnt_off00005ada.bin
0be5a16e8c6e21c0f02f5250f123568061aaf52c98520a3567597a6962178d74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADA 10348 bytes

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