Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4af068d854da6a…

MALICIOUS

PDF

48.1 KB Created: 2020-06-01 00:23:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51658d034b8e494aa5fc83d0ceb211cc SHA-1: e69e3cbcf6211b9dddcde61ef2894814998ff1e1 SHA-256: bd4af068d854da6a3fefee9ac8602c4cd50fd6ace8fdb20d250a7db10e81ac99
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links, many of which point to WordPress hosted PDF files with numeric slugs. This pattern is indicative of a link farm or SEO abuse. One of the embedded URIs, http://fancythefoodtrailer.com/uploads/1/3/1/4/131407521/131407521.html#zoids+eng+sub, is likely the intended destination for the user. The primary goal appears to be directing traffic to these external sites, potentially for advertising revenue or to host further malicious content.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://fancythefoodtrailer.com/uploads/1/3/1/4/131407521/131407521.html#zoids+eng+sub
    • https://nojowijede.files.wordpress.com/2020/05/87641356339.pdf
    • https://kisefavel526658237.files.wordpress.com/2020/06/69073443691.pdf
    • https://pegolupoduw.files.wordpress.com/2020/05/40227033377.pdf
    • https://zexixomiwos.files.wordpress.com/2020/05/savatitibage.pdf
    • https://fetusilexosu.files.wordpress.com/2020/05/fufusadabolijibizefu.pdf
    • https://gusuwabawujo.files.wordpress.com/2020/05/64970357045.pdf
    • https://lotopakaxil.files.wordpress.com/2020/05/jalixife.pdf
    • https://dasawiduved.files.wordpress.com/2020/05/96640528105.pdf
    • https://moguvil.files.wordpress.com/2020/05/60505762493.pdf
    • https://rufutekinose.files.wordpress.com/2020/05/12940495850.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_off00006018.bin
13f6dda97ce81272dfef9d6d7ebf3cebc3a882e42beca80dad10f6289d1a75d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6018 14696 bytes
font_01_sfnt_off00008f03.bin
1e54c80340e805b08f8ee5c57f39d2319e393a02deb1e2e3ea75f2c341280461		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F03 11944 bytes

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