Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef4ddac9a01ffb1f…

MALICIOUS

PDF

43.5 KB Created: 2020-04-09 11:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6e46fcc687cad70387f5faf947ae30d7 SHA-1: 71020272403ba8f3217bc693229755ef5535d0f3 SHA-256: ef4ddac9a01ffb1f7cef1ecbd809946b7d3b5e54babd2b847580fa0b25a2529f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 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 PDF files hosted on different domains, suggesting a link farm or SEO manipulation tactic. The document body contains a reference to 'The glass castle glass castle quotes', which may be a lure. The primary intent appears to be directing users to these external resources, which could host further malicious content or be part of a larger SEO poisoning scheme.

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://chuzhappy.com/uploads/1/3/0/5/130551746/130551746.html#the+glass+castle+glass+castle+quotes
    • http://lombokseeds.org/uploads/1/3/1/1/131164164/8817863.pdf
    • http://mygcfs.com/uploads/1/3/1/3/131383928/wonudodula.pdf
    • http://gisellehenriquez.com/uploads/1/3/0/2/130289229/pozosupopexos.pdf
    • http://besthairextensionswilmington.com/uploads/1/3/1/4/131406841/panitupuxibi_rilozabo.pdf
    • http://mta-sts.mail.svp-ipsach.ch/uploads/1/3/0/4/130478004/2579412.pdf
    • http://creatingviriditas.com/uploads/1/3/0/5/130589195/31ccaa.pdf
    • http://blindturtlebranding.com/uploads/1/3/1/4/131437880/rodadidilamisatape.pdf
    • http://thedistrictqualityllc.com/uploads/1/3/0/2/130288554/manesu.pdf
    • http://angelaswanson.net/uploads/1/3/0/2/130274076/9a62f589c979bd.pdf
    • http://c3customsllc.com/uploads/1/3/1/3/131380626/5273574.pdf
    • http://homeaidecleaning.com/uploads/1/3/1/3/131383928/jevulo.pdf
    • http://totahr.com/uploads/1/3/1/4/131408229/f92261f1cd.pdf
    • http://kylpinc.org/uploads/1/3/0/8/130874292/nirutivirelevavuma.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_off00008070.bin
116df32fedf7e94dac1505c7ac9290694ec9509fc97c5c1a201fcb78d1ca47b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8070 7952 bytes

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