Malicious PDF — malware analysis report

Static analysis result for SHA-256 3111de5ea548bb9d…

MALICIOUS

PDF

42.0 KB Created: 2020-06-03 23:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c7a978984666d6388ca43dea16e5cc7 SHA-1: 441b9348e52587ebb2e1ac6a0bedad365d3468b2 SHA-256: 3111de5ea548bb9de7c524710dcaeff9eeae971b817661e8aee3688125c20c98
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links point to various domains, many of which appear to be part of a coordinated effort to distribute content or manipulate search engine results. The primary URL, http://pelicanbriefconsult.com/uploads/1/3/1/3/131383333/131383333.html#skyrim+what+is+usleep, is also listed as an embedded URL. The presence of numerous unknown-reputation URLs suggests a malicious intent to redirect users to potentially harmful sites.

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://pelicanbriefconsult.com/uploads/1/3/1/3/131383333/131383333.html#skyrim+what+is+usleep
    • http://greatelephantproject.org/uploads/1/3/0/5/130589108/zesevolejepaf.pdf
    • http://jux.yezfoto.dk/uploads/1/3/0/3/130323335/1780448.pdf
    • http://jonesfamilyweekend.com/uploads/1/3/0/7/130739492/2b4aa86119d.pdf
    • http://integral-by-design.com/uploads/1/3/0/9/130969431/80fcb6ba.pdf
    • http://ademkracht.nu/uploads/1/3/0/5/130589019/zupovikalunubug.pdf
    • http://hirechase.com/uploads/1/3/1/8/131856877/6649000.pdf
    • http://vote4elko.com/uploads/1/3/0/6/130604470/5643053.pdf
    • http://maryreinhardtesl.com/uploads/1/3/0/6/130604562/914f945.pdf
    • http://kundaligames.com/uploads/1/3/1/4/131452987/407c22eeda089.pdf
    • http://pelicanbriefconsult.com/uploads/1/3/1/3/131383333/terms.html
    • http://pelicanbriefconsult.com/uploads/1/3/1/3/131383333/dmca.html
    • http://pelicanbriefconsult.com/uploads/1/3/1/3/131383333/policy.html
    • https://divezifek.files.wordpress.com/2020/06/54275512736.pdf
    • https://gomubefibi.files.wordpress.com/2020/06/19410697683.pdf
    • https://tinibamu.files.wordpress.com/2020/06/sekiwozojaba.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_off0000690c.bin
6d1e8c675708771a1f71ddce1665a7735ecb0003b4ab719c132b16bc1e96c586		 pdf-font-stream PDF embedded font (sfnt) at offset 0x690C 16256 bytes

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