Malicious PDF — malware analysis report

Static analysis result for SHA-256 384ced405ab92ce6…

MALICIOUS

PDF

35.8 KB Created: 2020-03-30 15:28:01 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 46b34cafe93b05f41c1118098f1484b7 SHA-1: 3822421ab0e2552e5dea876c85416d1722937b3c SHA-256: 384ced405ab92ce6f64900e61624e6f1e82127ce836986f926084d375c76740e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded external links to other PDF files hosted across numerous domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content. The primary heuristic identified a mass external PDF link farm, suggesting a coordinated effort to direct users to potentially harmful resources. 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://mssciencefest.com/uploads/1/3/0/6/130621409/130621409.html#como+hacer+un+diagrama+de+flujo+en+openoffice
    • http://integratedglobalrobotics.com/uploads/1/3/0/4/130436483/3983535.pdf
    • http://1crazynurse.com/uploads/1/3/0/7/130739713/leraru-xatofevi-natewipu.pdf
    • http://orderbraganzateabar.com/uploads/1/3/0/4/130476039/subetikuxuvo-lovoxefizane-lowewilabeje.pdf
    • http://larschellberg.com/uploads/1/3/1/0/131070711/wofikigaki.pdf
    • http://mspublishingcompany.com/uploads/1/3/0/3/130313106/kefonopu.pdf
    • http://gowickedkettlecorn.com/uploads/1/3/0/5/130588256/b81ee3dba.pdf
    • http://therickest.com/uploads/1/3/0/6/130639023/2784969.pdf
    • http://1287pictures.com/uploads/1/3/0/6/130620657/9651569.pdf
    • http://richmondhillcounselling.com/uploads/1/3/0/6/130604078/1073232.pdf
    • http://veronkaoskar.com/uploads/1/3/1/3/131384468/xexoxu_soweromepageze_sekosi_viwugixaxajal.pdf
    • http://sophisticatednest.com/uploads/1/3/0/4/130483617/tijakese.pdf
    • http://brucehinternish.com/uploads/1/3/0/3/130323603/gewer.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_off00006413.bin
f36f5a3d06c6b3d83e03b4a573df77241662a49e8bf8393bc5bc76dde049b4d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6413 8288 bytes

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