Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b0b3d0aaf65f1f5…

MALICIOUS

PDF

33.8 KB Created: 2020-04-12 17:22:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5ba79e3980afa2ffbfeb27cff89501f5 SHA-1: 8198e9094e1918eb8d6c6ae84a12727f8d7321ec SHA-256: 8b0b3d0aaf65f1f5253a24b6cdf2e16bd74f82199a284f03e14cb746caff2406
62 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a link farm, indicating a large number of external links. The document body and extracted URLs suggest a lure related to 'Los 5 componentes de las fuerzas armadas' which redirects to various PDF files hosted on different domains. This pattern is often used for SEO manipulation or to distribute 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://theelementalz.com/uploads/1/3/0/4/130483937/130483937.html#los+5+componentes+de+las+fuerzas+armadas
    • http://guyinteriors.com/uploads/1/3/0/6/130639511/vugoxozono.pdf
    • http://milledlogs.com/uploads/1/3/0/5/130551417/831547c01995.pdf
    • http://australianthermalimaging.com/uploads/1/3/0/4/130488786/7e522d0d569d59.pdf
    • http://screen-techarts.com/uploads/1/3/1/4/131438077/mewodiboxodutu-kubesazevi-vafaxolerodise.pdf
    • http://savvista.us/uploads/1/3/0/2/130272271/262449.pdf
    • http://odrtraining.net/uploads/1/3/0/7/130739094/82df720f.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_off00005b36.bin
54f6cf5c69e1e3f2c1570779eb4d6c4505d9a3bacae6ec5f320c619d0f14e630		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 8292 bytes

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