Malicious PDF — malware analysis report

Static analysis result for SHA-256 9607767fe36ff4dd…

MALICIOUS

PDF

28.1 KB Created: 2020-05-03 11:42:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7869f6dc7f130979f219ee8af03e16c9 SHA-1: aaba3b467e7cefbaa44e52135b1dd7d0b0027bd7 SHA-256: 9607767fe36ff4dd6ef0f9035fa10e8ff524069b365afabaaa884d3be125294a
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are structured as SEO-optimized PDF lures. The document body mentions 'Dwg viewer autodesk free', suggesting a social engineering tactic to trick users into visiting these links. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, and 'PDF_URI' points to a specific lure URL. These elements combined suggest a campaign to drive traffic to potentially malicious websites.

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://lakewoodelementary.net/uploads/1/3/1/4/131453522/131453522.html#dwg+viewer+autodesk+free
    • http://newarkrbp.com/uploads/1/3/1/4/131453046/7907651.pdf
    • http://bloomingdaledance.com/uploads/1/3/0/9/130969148/49e88df0.pdf
    • http://scapri.com/uploads/1/3/0/8/130874439/jokamutevisaju.pdf
    • http://cmfindlay.org/uploads/1/3/0/5/130539742/mizave_foneso_siraniri.pdf
    • http://aspenvalley.org/uploads/1/3/0/7/130775888/6529959.pdf
    • http://forthewolves.net/uploads/1/3/1/1/131164524/7ec0e827f68a43.pdf
    • http://connectionsyrc.org/uploads/1/3/0/6/130603958/fozijep.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off0000444b.bin
585c69ceb15696240e7803782ba22493bbf0d071cb1a1a10a13fae754ac9e892		 pdf-font-stream PDF embedded font (sfnt) at offset 0x444B 9704 bytes

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