Malicious PDF — malware analysis report

Static analysis result for SHA-256 268079cdbe0c2767…

MALICIOUS

PDF

32.7 KB Created: 2020-04-19 16:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b18ef90b6284256b1cc9d4102f1c6775 SHA-1: bc919a4de49d86dcac6dd0bb66498d05e69d6f90 SHA-256: 268079cdbe0c2767f1e7a1fd1f6a7855942b17c551ae89c7bd9accca51317c0e
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to domains that appear to be part of a link farm. One prominent link directs to 'losangelesvigilantes.com' with a title suggesting a movie, likely a lure. The ML classifier strongly indicated maliciousness, supporting the interpretation of this PDF as a malicious document designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://losangelesvigilantes.com/uploads/1/3/0/5/130550953/130550953.html#new+bhojpuri+comedy+movie
    • http://crablefoundation.org/uploads/1/3/0/4/130436494/wimozojugulex_dokulip.pdf
    • http://nicandannie.com/uploads/1/3/0/9/130969724/94f9e54c72d27.pdf
    • http://pandoracoffee.com/uploads/1/3/1/4/131437427/xujusugedijeso.pdf
    • http://woodfordgardensescape.com/uploads/1/3/1/3/131381882/raxeruvoxapuso.pdf
    • http://floridasilverfoxes.com/uploads/1/3/0/6/130620887/tibut.pdf
    • http://brickovendough.com/uploads/1/3/1/3/131398148/wasoraxibufimit-jevanapidi.pdf
    • http://nicholecris.com/uploads/1/3/0/9/130969357/xijevak-xokibemovir-napiwofeb.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_off00005a8d.bin
cd2853ace3d054da80d095398230c2fd2b1c48fcade8492d532b7e799ab5492c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8D 7168 bytes

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