Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0df837d80b711f0…

MALICIOUS

PDF

36.9 KB Created: 2020-03-29 14:41:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a3c3ee8b1993f4aa7d25a1b59cfa56cd SHA-1: 195de10d62bb4a5a4f78747c9004b96f8fde6e2a SHA-256: c0df837d80b711f0f69d54a63bf3187a3d3b33cedcb05dc3c803086abe167894
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, identified as a PDF_SEO_LINK_FARM heuristic. The document body presents a title about configuring email, likely a lure to encourage users to click the embedded links. The primary malicious activity observed is the redirection to a network of suspicious websites, as indicated by the numerous unknown-reputation URLs.

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://ndtasanantonio.org/uploads/1/3/0/6/130604046/130604046.html#como+configurar+email+do+yahoo+no+outlook+365
    • http://shanemccarty.com/uploads/1/3/0/5/130551057/zefojipeg_katibopipu.pdf
    • http://lamsperspective.com/uploads/1/3/0/4/130436040/4435676.pdf
    • http://blokessoaps.com/uploads/1/3/0/6/130639021/d66caea143e4c.pdf
    • http://crabhousefortsmith.com/uploads/1/3/0/5/130588319/puvororawavajosono.pdf
    • http://centennialstatecustomplumbing.com/uploads/1/3/0/5/130590436/winirirukik.pdf
    • http://laboisserolle-diffusion.com/uploads/1/3/0/5/130550796/8161282.pdf
    • http://auster.be/uploads/1/3/0/9/130969231/detajeke.pdf
    • http://cbd-hemp-store.com/uploads/1/3/0/4/130483193/gigijarixibigil.pdf
    • http://rehaboftherockies.com/uploads/1/3/0/8/130874120/4894533.pdf
    • http://handmadefashion.us/uploads/1/3/0/5/130589035/vudat.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_off00006297.bin
4410345e55ec0a567453c876912603507c1159ef73899159805dd2ab812c1501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6297 10036 bytes

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