Malicious PDF — malware analysis report

Static analysis result for SHA-256 a09e5d1edccffd66…

MALICIOUS

PDF

38.9 KB Created: 2020-04-08 19:06:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7a997de875a64feb04b8607972d4661a SHA-1: 75fb92f3da98be5fa56261da3cd5bb7b4f1e0396 SHA-256: a09e5d1edccffd665f3da2ee28be61c93b855267ef1b7c56aff9562d12359c3b
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body also contains a primary URL that leads to an HTML page, which in turn contains many more links to PDF files. This suggests a link farm or SEO poisoning attack, potentially to distribute further malware or manipulate search results. No scripts were extracted from this sample.

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://net-linkconsulting.com/uploads/1/3/0/3/130313228/130313228.html#best+pokemon+in+pokemon+quest
    • http://bipolarstarguide.com/uploads/1/3/1/4/131407511/f1eab05c251d1.pdf
    • http://eleprio.com/uploads/1/3/0/7/130775474/0f747960a529b8.pdf
    • http://angelasoffice.com/uploads/1/3/0/6/130604656/rabigefiwoz-fozonubep-dujifaga-tadojiri.pdf
    • http://carlamorrow.com/uploads/1/3/0/3/130323163/tetijada.pdf
    • http://beaufortpictureshow.com/uploads/1/3/0/6/130605432/64297.pdf
    • http://propertyguardianutah.com/uploads/1/3/0/8/130814238/2f5484fb96536.pdf
    • http://gretchenpurser.com/uploads/1/3/1/3/131379280/9130920.pdf
    • http://asociacionpro-indefensos.org/uploads/1/3/0/5/130589384/vusafakifafizax.pdf
    • http://lmconcierge.com/uploads/1/3/0/7/130740222/goxutewa-sabekizobisaduw.pdf
    • http://bestboiseproperties.com/uploads/1/3/0/4/130490386/2b095c67bca06f9.pdf
    • http://artgoneviral.com/uploads/1/3/0/8/130813999/adfce911ae1a.pdf
    • http://pdqlcoks.com/uploads/1/3/0/5/130544790/b3786.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_off00006e28.bin
b9d906ac28806c7ece0acc7956be2f544b022fe0b2355323614b2316146f68e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E28 8024 bytes

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