Malicious PDF — malware analysis report

Static analysis result for SHA-256 df92b284783b8fe4…

MALICIOUS

PDF

38.5 KB Created: 2020-04-05 03:18:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7e480c43b352491294b14173b26b1d04 SHA-1: f06589133851a33f041fce2f78258528dbbf9ebf SHA-256: df92b284783b8fe4aa411d45cb891095c789f310e780ac73006650fa830bbe50
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF contains a large number of external links to various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body text is largely garbled but contains a reference to 'Tipos de software de aplicacion y sus funciones', suggesting a potential lure. The primary intent appears to be directing users to a network of linked PDFs, possibly for SEO spam or to host further malicious content.

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://nickconte.net/uploads/1/3/0/8/130814254/130814254.html#tipos+de+software+de+aplicacion+y+sus+funciones
    • http://eczemapfdd.org/uploads/1/3/0/6/130603943/dakob-xodifaxotideta-puxebufe-tumojikuwewaxuf.pdf
    • http://lpbpconsulting.com/uploads/1/3/0/9/130969452/2263798.pdf
    • http://bradtwilson.com/uploads/1/3/1/4/131453124/fewajog.pdf
    • http://aspenvalleyassistedliving.com/uploads/1/3/0/6/130640126/7d1f76ebe8303af.pdf
    • http://edensburglutheran.org/uploads/1/3/0/7/130776888/xiwokulusin.pdf
    • http://maxmeadowsequinerescue.com/uploads/1/3/0/5/130546543/dafawen.pdf
    • http://lifemattersyoumatter.com/uploads/1/3/0/8/130814643/2154605.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_off00006d11.bin
eebe06026ff8f3204f551709b6ec7b36d68f8c7ffd1017f38d5bec2f7a594461		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D11 8896 bytes

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