Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6dd090957032ac…

MALICIOUS

PDF

43.0 KB Created: 2020-03-16 17:26:09 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6ac5f5599909b78b4481246a1cbe4d49 SHA-1: 61df2066ae64ec3651533752d81fb6932686184c SHA-256: ef6dd090957032ac9c9a695b0dd8b0d5f716c521a651a266aeb8269c8f3c008d
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body contains garbled text and some URL fragments, but the primary malicious activity appears to be the mass distribution of external links. No scripts were extracted from this sample.

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://pencilpenservices.com/uploads/1/3/0/6/130639775/130639775.html#conformado+de+materiales+que+es
    • http://elreydelaceramica.com/uploads/1/3/1/0/131070452/dujifigal.pdf
    • http://www.projects.nuenergygroup.com/uploads/1/3/0/7/130739934/tiwobojisuvalodolu.pdf
    • http://www.puertoricotours.com/uploads/1/3/0/5/130588334/rizifirexaw-jexologado.pdf
    • http://annesketch.com/uploads/1/3/0/3/130313123/zafomuvanubukip.pdf
    • http://goldheartpersians.com/uploads/1/3/0/6/130621730/68ec5.pdf
    • http://becomingpresent.org/uploads/1/3/0/6/130621072/siwiraz-boralobuw-refitami.pdf
    • http://christopherburge.com/uploads/1/3/0/7/130738543/36b56ee.pdf
    • http://satnickod.com/uploads/1/3/0/6/130621425/zokumaxon.pdf
    • http://missouri-nationals.com/uploads/1/3/0/3/130313619/2809823.pdf
    • http://markrharris.com/uploads/1/3/0/4/130478772/mogitufizoxojuz.pdf
    • http://www.erikandersoncuisinier.com/uploads/1/3/0/5/130588784/c8b6e80.pdf
    • http://www.rockymountianmetis.com/uploads/1/3/0/5/130543377/2989008.pdf
    • http://alniyatbellydance.com/uploads/1/3/0/3/130313235/xazowixe.pdf
    • http://hostmaster.sportpic.co.il/uploads/1/3/0/5/130588589/2433961.pdf
    • http://blindcricketaustralia.org/uploads/1/3/0/7/130775109/paroker.pdf
    • http://thestandguild.com/uploads/1/3/0/5/130588603/3331277.pdf
    • http://www.ohmygoodnessfarms.com/uploads/1/3/0/4/130436415/lukelakilerasewosim.pdf
    • http://monsieurcoulibaly.com/uploads/1/3/0/7/130775032/f714a24fcb85f5.pdf
    • http://mx.publicimagearts.org/uploads/1/3/0/6/130639115/reludepidib-pixujiguseb-tamaxotalajeda-puwuxi.pdf
    • http://misbirmingham.com/uploads/1/3/0/7/130739232/movobi_godevinasarawo_rirobukadade.pdf
    • http://mail.discountfireworks.us/uploads/1/3/1/1/131163761/8241063.pdf
    • http://napaduilawyer.net/uploads/1/3/0/4/130435906/93a2f00539.pdf
    • http://www.thinkleetutoring.com/uploads/1/3/1/0/131070938/3112343.pdf
    • http://mail1.kingsheathnationalspiritualistchurch.com/uploads/1/3/0/5/130589104/61c56c07c7.pdf
    • http://lltraininginstitute.net/uploads/1/3/0/5/130589160/fadodonipaf-dederutowagomi.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_off00007d5c.bin
805f4a5b94916d2aa06c7d1c7c2a82130e09113ecf4a3f64c5bd506fdf426cd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5C 8776 bytes

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