Malicious PDF — malware analysis report

Static analysis result for SHA-256 d599d452039b041a…

MALICIOUS

PDF

44.2 KB Created: 2020-03-29 21:48:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0017b1ac25ed8228c31bcf56dabdaf80 SHA-1: e1e678482e07bdf545308c902caec1f649697ab4 SHA-256: d599d452039b041a688a57c22c0884a4f8120f16a4e57a16a32918b166e5b212
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to similarly structured URLs on different domains. This behavior is indicative of a link farm or a phishing lure designed to direct users to potentially malicious content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://74-123-78-154.mgwnet.com/uploads/1/3/0/9/130969740/130969740.html#cuales+son+los+principales+elementos+del+pensamiento+critico
    • http://bfbeautyanddermaltherapy.com/uploads/1/3/0/6/130620986/1650832.pdf
    • http://sidrastechnology.com/uploads/1/3/0/5/130543402/4584175.pdf
    • http://matthewmcdade.com/uploads/1/3/1/1/131163986/mibikuri.pdf
    • http://clydemaynard.com/uploads/1/3/1/4/131407179/bitarigino.pdf
    • http://eagleeyeimaging.org/uploads/1/3/1/1/131164314/sexuvu-fofilu.pdf
    • http://westmichiganvirtual.com/uploads/1/3/0/7/130740558/92189f4b0.pdf
    • http://minnimallist.com/uploads/1/3/0/6/130604173/b7ac0c5b3a6401a.pdf
    • http://blacsheepapparel.com/uploads/1/3/0/5/130538949/8087281.pdf
    • http://arfpetfoods.ca/uploads/1/3/0/8/130814960/xarasewamozuve-ziwesunogunule.pdf
    • http://shrewsburydaycare.com/uploads/1/3/0/9/130969774/52452b8.pdf
    • http://jenshulman.com/uploads/1/3/0/3/130323817/rarupesin_wakoso.pdf
    • http://bareconcepts.us/uploads/1/3/0/5/130589353/figidugit_nanaxexafimi_kikekadidopuk.pdf
    • http://dominionchapelusa.org/uploads/1/3/0/6/130639714/fodijijufede-texawu-kebimebel-zikiwapiwemorif.pdf
    • http://fourheadlaser.com/uploads/1/3/0/6/130620957/1804312.pdf
    • http://mandihoward.com/uploads/1/3/0/5/130588745/a327f87dde74.pdf
    • http://jmgbusinesspartners.com/uploads/1/3/0/8/130874332/nifelipogexenoz.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_off000080f3.bin
469ea78d1bbdc0488e4c0d522f7b260906d89d49a4922f46f198acfa2f12be18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F3 8796 bytes

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