Malicious PDF — malware analysis report

Static analysis result for SHA-256 873f64ee30c431f4…

MALICIOUS

PDF

35.9 KB Created: 2020-04-03 11:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 73e56526ce7cbf071dc094bd1ef4dcd1 SHA-1: 88844f50e320bc187fcd81b96a4f1dde56b07de1 SHA-256: 873f64ee30c431f43169e366206716385bd6de3511244e4bf2f9181c865ba0fd
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text and what appears to be metadata from the wkhtmltopdf tool, but no direct malicious script execution is evident. The primary attack pattern involves directing users to a multitude of external URLs, potentially for malicious redirection or content hosting.

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://richarddaviescelebrant.com/uploads/1/3/0/5/130544672/130544672.html#libro+recetas+lekue+el+corte+ingles
    • http://hutabut.net/uploads/1/3/0/3/130379651/dugibop.pdf
    • http://tinasfunforfive.com/uploads/1/3/1/4/131437699/85813be5f05da.pdf
    • http://lifestyle4change.com/uploads/1/3/0/7/130739936/susogikowoba_nuronukojega_pipurozorexowu_lilarupowon.pdf
    • http://leadofflabs.com/uploads/1/3/1/0/131070576/bisuveverelawaxanam.pdf
    • http://animalrecoveryagency.org/uploads/1/3/0/4/130488332/8615164.pdf
    • http://jhinstallations.net/uploads/1/3/1/3/131398187/60c54ca.pdf
    • http://maverawood.com/uploads/1/3/0/8/130814232/xopeguvelimar.pdf
    • http://kissmyicess.com/uploads/1/3/0/4/130483136/2b69a3369c98bf.pdf
    • http://thetipewax.store/uploads/1/3/1/4/131438501/lozorurulikizag_jununelebamif_jexitubu_pupuwepusa.pdf
    • http://gs-electrical.net/uploads/1/3/1/3/131398335/wikovajeraw.pdf
    • http://thegolfhouserestaurant.com/uploads/1/3/1/4/131454352/vuregimavafuxobidet.pdf
    • http://monicawickerramsay.com/uploads/1/3/0/9/130969514/geworewibitavapup.pdf
    • http://melaniemariejeanne.fr/uploads/1/3/0/3/130323641/nagowatuwepefositin.pdf
    • http://premiercoastalproperties.net/uploads/1/3/1/4/131437101/gefed.pdf
    • http://scottpropertyinvestmentsllc.com/uploads/1/3/0/6/130639518/ff28d8d72c.pdf
    • http://genericartist.com/uploads/1/3/1/3/131381540/b341b20132d5002.pdf
    • http://zohreh.us/uploads/1/3/0/6/130603918/lipofifapaxofom.pdf
    • http://rcsormani.com/uploads/1/3/1/3/131381553/7e36ecbf6f65144.pdf
    • http://nachomamanc.com/uploads/1/3/0/4/130483540/jubaroju.pdf
    • http://pacifichandpiecerepair.com/uploads/1/3/0/5/130588692/3225768.pdf
    • http://topredtech.com/uploads/1/3/0/7/130739537/3444653.pdf
    • http://pruemason.org/uploads/1/3/0/5/130546354/c58ca.pdf
    • http://leeloi.com/uploads/1/3/0/5/130547405/8127860.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_off000060ea.bin
f9977dd8dde9b3bcdd069777173d9b577dd865c666c9114df76527cce4c256b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60EA 8608 bytes

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