Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab71743da97edd7…

MALICIOUS

PDF

33.1 KB Created: 2020-05-26 04:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7257ae98a798aa98dc55c3d96f83547a SHA-1: 37ca2e5cfb63ae4b7b3f6c5de76495cc83691b1d SHA-256: dab71743da97edd7155e7bf3610f5b8db92406067d6b93dddcf3e6fd83368c29
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains. This pattern is indicative of a link farm, often used for SEO manipulation or to distribute malicious content across multiple sites. The document body itself is minimal and appears to be boilerplate text related to study plans and the PDF creation tool.

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://contact.rodhillportraits.com/uploads/1/3/0/7/130739258/130739258.html#plan+de+estudios+2011+ciencias+sociales
    • http://ericraymundo.com/uploads/1/3/0/5/130588834/nedobazuporozipa.pdf
    • http://7ebkah.com/uploads/1/3/1/4/131409463/8130465.pdf
    • http://ffipurelife.com/uploads/1/3/0/5/130589223/wakosojupazaxunez.pdf
    • http://cleanfinishdetail.com/uploads/1/3/1/8/131856131/jidodabeneteg.pdf
    • http://sophiawstrong.com/uploads/1/3/0/2/130272365/fedus.pdf
    • http://donaldhuey.com/uploads/1/3/0/9/130969594/ruvibelidam.pdf
    • http://wipmyself.com/uploads/1/3/0/2/130271011/petun.pdf
    • http://michellefineconnections.com/uploads/1/3/0/5/130588388/3178626.pdf
    • http://kaijiew.com/uploads/1/3/0/2/130292125/wapurot_nibegorudoxe_mutobazanajawi.pdf
    • http://olallagreens.biz/uploads/1/3/1/4/131483348/a757b25.pdf
    • http://silviobook.com/uploads/1/3/0/4/130436074/pugigodudi-tabatawef-wiwowemunubuv.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_off00005408.bin
27bbf68a9d253661edb9f7b860bdbc285c3e746f4f6e9ed51ea272f7430034d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5408 10772 bytes

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