Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c12c55ece63115…

MALICIOUS

PDF

40.7 KB Created: 2020-04-04 12:45:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8e0ea9a26d010625aa927760a5f14316 SHA-1: 78a47a066a3bae75926e4234a59fb9dca5d097df SHA-256: e3c12c55ece631155e2dd49ef149a5ef5bd843566dbd9340bc4902af5083f7fb
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, indicating a link farm or SEO manipulation tactic. The document body contains metadata related to 'Bridget Jones Diary soundtrack' and the wkhtmltopdf tool, suggesting a lure. No scripts were extracted, limiting the analysis of direct malicious actions. The primary attack pattern observed is the mass distribution of external URLs.

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://wkgardnerconstruction.com/uploads/1/3/0/8/130815124/130815124.html#bridget+jones+diary+soundtrack+all+by+myself
    • http://edcovikings.com/uploads/1/3/0/6/130604630/6b217.pdf
    • http://serenitynaturalcare.net/uploads/1/3/0/3/130379368/mixupifijoko.pdf
    • http://hammondinteriorswickford.com/uploads/1/3/0/4/130476221/bixumarigiru.pdf
    • http://lexgurst.com/uploads/1/3/0/9/130969441/povawavir-kuxamawititalok.pdf
    • http://mosaicguides.com/uploads/1/3/1/4/131455069/getuvetajugo.pdf
    • http://thenym.co/uploads/1/3/0/7/130739341/b0e2d56.pdf
    • http://jefforrcpa.com/uploads/1/3/1/3/131379749/7119774.pdf
    • http://enginemotorimport.com/uploads/1/3/0/4/130476579/vefuwojuwu-dakunulimeke.pdf
    • http://shuyientertainment.com/uploads/1/3/0/5/130543600/6067303.pdf
    • http://allclear-windowcleaning.com/uploads/1/3/0/2/130291555/438685e401.pdf
    • http://wildturkeybar.com/uploads/1/3/1/4/131437924/laxesopopimegige.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_off00006c36.bin
7e8e49e0888621a6006a89f1a01a522f1ef4054f90131d6ef14e899085e9a936		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C36 7924 bytes
font_01_sfnt_off00008a61.bin
1b3f82cd74c5b6671cc0c0d4a6c7877b74bb57ca469b2a61ef541918e41af838		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A61 2652 bytes

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