Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe10568c9d438af3…

MALICIOUS

PDF

33.8 KB Created: 2020-04-19 22:18:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 529142463ff51efda5bd746ed8c6edf3 SHA-1: 3e6ed2d384a5e6550003b07dd7f76e86cd9087a8 SHA-256: fe10568c9d438af3e368688388be997884fd73a95ccec4d683336a53f60fce70
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, many of which point to other PDF files on different domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The primary heuristic firing, PDF_SEO_LINK_FARM, strongly suggests this intent. 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://1836bbq.net/uploads/1/3/0/6/130639365/130639365.html#manual+de+anestesia+local+malamed+pdf+gratis
    • http://everydayenglish.courses/uploads/1/3/0/3/130379336/0ab9c5b94f2b.pdf
    • http://easttexasconcrete.com/uploads/1/3/1/3/131398224/3d9310ac4e1ddb.pdf
    • http://peter-rathbun.com/uploads/1/3/1/6/131606465/7799044.pdf
    • http://lj-realestate.com/uploads/1/3/0/2/130274091/subutedidatabil_kisemokuludojig.pdf
    • http://teitsson.com/uploads/1/3/0/5/130588445/c95888e807.pdf
    • http://monipirie.com/uploads/1/3/0/7/130776260/kisonarivogexukosope.pdf
    • http://annablossom.com/uploads/1/3/0/4/130436315/bokowefinup.pdf
    • http://orcalogic.com/uploads/1/3/0/5/130550827/afcbeecf9c.pdf
    • http://histologysolutions.com/uploads/1/3/0/6/130621115/rojaxejigaboror_xomur.pdf
    • http://personalstylistrasbourg.com/uploads/1/3/0/9/130969162/vazavabasisova.pdf
    • http://church-home.org/uploads/1/3/0/5/130589238/xitatemuwisosir.pdf
    • http://mullaghmoreconsulting.com/uploads/1/3/0/4/130489650/1661367.pdf
    • http://braeburnllc.org/uploads/1/3/0/5/130588606/tamajovo-duvizewonem.pdf
    • http://jjlmarketingsolutions.com/uploads/1/3/0/6/130620704/rofererijeno_ramixawufavul_xugomiwab.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_off00005938.bin
ddee3a2325aa15f56e5f67c253965d4ce30f8a3cc6d6f7e3a2d6de79d62aea96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5938 9216 bytes

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