Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd21a2d63cfaa7a…

MALICIOUS

PDF

33.9 KB Created: 2020-05-14 17:09:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d3dd5b9ab86102b9e8811166905db0c SHA-1: 2552df4c172ec1475271e7cd01e269010910dbd8 SHA-256: 4fd21a2d63cfaa7a0b8cf665bce2d2fbabd0ba358284d2edaaa729880d0172bc
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO spam or phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a large number of external links within a small PDF, suggesting a malicious intent to drive traffic to potentially harmful sites. The document body, though heavily obfuscated, contains a URL that aligns with this finding. 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://plumbing-concepts.com/uploads/1/3/0/5/130551229/130551229.html#halter+ranch+rose+tech+sheet
    • http://thomanimation.ch/uploads/1/3/0/8/130813975/fogatonejemaw_rokasavabero_javusasiro_welinizuvud.pdf
    • http://zahnabc.de/uploads/1/3/0/6/130604632/lozos.pdf
    • http://utahreopreservationteam.net/uploads/1/3/0/5/130588678/zoxorili-punugagux.pdf
    • http://kickrocks.life/uploads/1/3/1/4/131437317/1948558.pdf
    • http://samdfrank.net/uploads/1/3/1/4/131482946/lujizejuvadefi.pdf
    • http://chapelhillchamberacademy.com/uploads/1/3/0/3/130379231/pobiwokeromop_wipararav.pdf
    • http://friendlystudio.cat/uploads/1/3/1/8/131857056/8b5f01cce.pdf
    • http://kslscf.org/uploads/1/3/0/6/130640105/f258b8d05c.pdf
    • http://abortionoman.com/uploads/1/3/0/5/130543798/nesefopuv_muwazusafud.pdf
    • http://appbinc.com/uploads/1/3/0/2/130272505/00b9d1b06.pdf
    • http://maoridj.com/uploads/1/3/0/6/130639888/wovisosojivagik-jurod.pdf
    • http://speakeroflife.com/uploads/1/3/0/7/130739006/nalujeti.pdf
    • http://harrisontheater.com/uploads/1/3/0/6/130621071/4273073.pdf
    • http://helpingthevets.org/uploads/1/3/0/4/130435649/96245.pdf
    • http://flymaritime.com/uploads/1/3/1/1/131163834/bonofaxo.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_off000059c6.bin
662b2e3bdef8d0db04e942054a9ecb82b2b596d3d5c8628e11cf1294a55c6c3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C6 10124 bytes

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