Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f72497b95380bc…

MALICIOUS

PDF

38.8 KB Created: 2020-04-13 03:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 83f9ead14d44bf0514e5b62f9c0fde79 SHA-1: a946d9951d4949fcadda4952dd6c3320ec1d7252 SHA-256: 46f72497b95380bc10348abf78bd2611086bbcfea7eeb6b3b8cafa0cbff93a76
62 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which are SEO-optimized and point to unrelated content, indicating a link farm or spamming operation. The document body, though partially corrupted, contains a title related to weight loss and an embedded URL, suggesting a lure to external malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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://bridgestreampublishing.com/uploads/1/3/0/4/130479210/130479210.html#como+perder+masa+muscular+en+los+muslos
    • http://janerickluzuriaga.com/uploads/1/3/0/6/130621205/palune.pdf
    • http://nnnmarketplace.com/uploads/1/3/1/0/131070009/rubogisuwazonosup.pdf
    • http://cbdmeditreats.com/uploads/1/3/1/4/131437865/5022401.pdf
    • http://khmerkampucheakrom.org/uploads/1/3/0/2/130273753/lifeg.pdf
    • http://operadoraexperienciasmagicas.com/uploads/1/3/0/7/130739693/vewisebikiwev-kojerolutiniguz-faviwolelutov-vitenokawizixum.pdf
    • http://nncadawn.org/uploads/1/3/0/3/130313319/8d30b6d6080.pdf
    • http://serialkillerbrainpodcast.com/uploads/1/3/1/4/131437612/9077940.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e7a.bin
4e0820ae75bf627ae758c6a40765aae1ed89784d751cf96b5922dcf3da6f36a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7A 8528 bytes

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