Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2d299d150bc8e7…

MALICIOUS

PDF

34.1 KB Created: 2020-04-10 15:26:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8c54ee2a3b9f2c9a57a459f8d7aa9166 SHA-1: 3ab0f4f2bcad6c5a1baabdd4675ea9bce9dd51b7 SHA-256: fa2d299d150bc8e7e8f033e20649d6a0f73c5bf82e0640d5332edb4e363f50b6
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body, though partially corrupted, contains references to 'Pathfinder blood of the sea pdf' and the wkhtmltopdf tool, indicating it was likely generated programmatically. The primary purpose appears to be directing users to a network of other PDF files, potentially for malicious distribution or to artificially inflate search engine rankings.

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://nutritionavenuefitness.com/uploads/1/3/0/6/130621106/130621106.html#pathfinder+blood+of+the+sea+pdf
    • http://wildwfarm.com/uploads/1/3/1/4/131454352/kodetinuxolil-rakemu.pdf
    • http://motivoclothingco.com/uploads/1/3/0/2/130289284/664044.pdf
    • http://anotherbritishblog.com/uploads/1/3/0/6/130639551/431962.pdf
    • http://adapthomecare.org/uploads/1/3/1/0/131071038/2861316.pdf
    • http://skinmadeeasy.com/uploads/1/3/0/5/130546290/ripijukiju.pdf
    • http://gingerrootmarketing.com/uploads/1/3/1/0/131070497/misedemoto_xezifupatafis.pdf
    • http://admoneogroup.com/uploads/1/3/0/8/130874457/7a67e522dd5.pdf
    • http://lasocietenouvelle.fr/uploads/1/3/1/4/131453871/xigoninemavetegar.pdf
    • http://drandrewwalker.com/uploads/1/3/0/6/130621509/sewamuvezusun.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cb0.bin
9aec60f444ccd33a735fb8f3bec26b4ce2b77243e080242bac21dfee2ba8b0ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 7688 bytes

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