Malicious PDF — malware analysis report

Static analysis result for SHA-256 506b5b2fb32e7c10…

MALICIOUS

PDF

35.0 KB Created: 2020-03-24 13:27:03 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 634355454fe80437ce0f9045d9a2c4cf SHA-1: f9053daf149f6d614272673a1cc84841b6700931 SHA-256: 506b5b2fb32e7c10998ef3756b57656a9f3e8b117471456d61ee3bbbc6150e05
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique commonly used for SEO poisoning or to redirect users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a high likelihood of a link farm designed to manipulate search engine results or distribute malware. The document body itself contains obfuscated text and references to URLs, further supporting this attack pattern.

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://jthomrich.com/uploads/1/3/0/7/130740049/130740049.html#dar+negative+nosotros+command
    • http://mindbodyconnectionmassagepilates.com/uploads/1/3/0/4/130483736/belimikekosuluze.pdf
    • http://recycledmindsimprov.com/uploads/1/3/0/7/130738706/fitolevadef.pdf
    • http://constructionsupply255.com/uploads/1/3/0/8/130813972/mivogijenegobosovag.pdf
    • http://www.alinea-graphicdesign.com/uploads/1/3/0/5/130539128/43adc3a67151fe.pdf
    • http://autorhino.net/uploads/1/3/0/6/130639896/325d87.pdf
    • http://www.us.finance/uploads/1/3/0/9/130969278/5145090.pdf
    • http://quad-consulting.com/uploads/1/3/0/4/130488442/62f729e0.pdf
    • http://seethroughcleaning.com/uploads/1/3/0/6/130620401/373066.pdf
    • http://www.sasuka.co.nz/uploads/1/3/0/2/130287873/4216248.pdf
    • http://peytonkinsey.com/uploads/1/3/0/5/130544447/sepofel-xovava.pdf
    • http://margiemademe.com/uploads/1/3/1/0/131070207/ed72fd4779d.pdf
    • http://merrymanchiropractic.com/uploads/1/3/0/7/130739732/kosiwew_monugajimutanez_sokip.pdf
    • http://bulletjournalingtales.net/uploads/1/3/0/5/130551303/ralamoputeki.pdf
    • http://karoovillage.com/uploads/1/3/0/6/130622022/6562529.pdf
    • http://mrsfullmersprekindergarten.com/uploads/1/3/0/5/130589006/198606.pdf
    • http://argylesky.com/uploads/1/3/0/8/130873916/305cfec.pdf
    • http://www.song-theory.com/uploads/1/3/0/5/130551659/xesof.pdf
    • http://mainsgas.net/uploads/1/3/0/7/130739371/b17894d16cc17e7.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_off0000626f.bin
5d73412bc3a800b26d566587de4359b187bee0ca82a6f57e51c3ffa51fc70367		 pdf-font-stream PDF embedded font (sfnt) at offset 0x626F 7644 bytes

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