Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccac7617a7747f58…

MALICIOUS

PDF

38.4 KB Created: 2020-05-16 23:25:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d47defd6401c8c3f780c2fbce1c74cf8 SHA-1: 1f2ef1157b1b06d04041fa376ea8bc3d57e2dafc SHA-256: ccac7617a7747f58e834b1cbdf97bfda8b7f2163ad2b4e34dbd805d65175fff5
94 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents on different domains. The ML classifier also strongly indicated maliciousness. This suggests the document is part of a link farm designed to manipulate search engine results or distribute further malicious content through the linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://windyhillexpressionsllc.com/uploads/1/3/0/4/130491752/130491752.html#consumer+reports+france
    • http://lcdmoney.com/uploads/1/3/0/6/130622075/6809839c83dd2.pdf
    • http://sariedollxo.com/uploads/1/3/0/6/130603763/4815645.pdf
    • http://mtchoirs.com/uploads/1/3/0/6/130605254/f72873da4.pdf
    • http://footgolf.sport/uploads/1/3/1/3/131381675/6998678.pdf
    • http://depthstudy5feudaljapan.com/uploads/1/3/1/8/131871894/sorir.pdf
    • http://thehockymenclan.com/uploads/1/3/1/4/131409755/8291609.pdf
    • http://jessicastameyshairbydesign.com/uploads/1/3/0/8/130813448/repije.pdf
    • http://thestoryoffifa.com/uploads/1/3/1/8/131857734/kikubakemi.pdf
    • http://nickstatham.com/uploads/1/3/0/6/130621071/kinodijizogevu-xapekejifemabo-lisoxekedudiso-xuberawage.pdf
    • http://rubymerrittauthor.info/uploads/1/3/0/7/130738554/redarere-nudulutuvese-wuvinip.pdf
    • http://jasminedionne.com/uploads/1/3/0/7/130775361/986a7494e.pdf
    • http://southwestblessings.com/uploads/1/3/0/4/130435597/9112349.pdf
    • http://kiijarvi.fi/uploads/1/3/0/2/130289541/8569461.pdf
    • http://rlawholesale.com/uploads/1/3/0/6/130639419/7241223.pdf
    • http://nbsconsultancy.net/uploads/1/3/0/6/130639827/xakemeru.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_off00006dd1.bin
c8bd53b31b7da25d41bdf075c0c08b71a802a9f0d20cc3f5f2742896f71368eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD1 9484 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.