Malicious PDF — malware analysis report

Static analysis result for SHA-256 475c4ceb941ce9ab…

MALICIOUS

PDF

42.4 KB Created: 2020-04-01 13:44:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3ef51a3acacca556ea309fc9b212fccd SHA-1: d5fb6264e7a368fba034950b8b532cecbfdc8c3f SHA-256: 475c4ceb941ce9ab62c56eef2a2533fb4975726cd545222dd14e1b00c8d27b72
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a method to distribute malicious content indirectly. The document body itself is heavily obfuscated and contains what appears to be metadata related to its creation, but the primary malicious activity is the mass of external URLs.

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://healingpalate.com/uploads/1/3/1/3/131398104/131398104.html#contrato+de+suministro+modelo+peru
    • http://pictureperfectpie.com/uploads/1/3/0/4/130436298/sunozubiximezak.pdf
    • http://largeandpage.com/uploads/1/3/0/7/130739333/nipepopab.pdf
    • http://voidedge.com/uploads/1/3/0/5/130590356/0652a67.pdf
    • http://specialtystructures.net/uploads/1/3/0/7/130739944/bcbd6e.pdf
    • http://tierconsultingfirm.com/uploads/1/3/0/3/130313000/bezagibitifevejorova.pdf
    • http://oceansidehoodcleaning.com/uploads/1/3/0/4/130476006/7437875.pdf
    • http://kapsalondevlinder.com/uploads/1/3/0/4/130488399/7502335.pdf
    • http://commercialindoor.com/uploads/1/3/0/7/130776847/wiradetegirij-xezim-sijeleloj.pdf
    • http://zendoctor.net/uploads/1/3/0/7/130739783/xurob_kumidaruwol.pdf
    • http://effortless-beaute.com/uploads/1/3/0/5/130539238/wotoju.pdf
    • http://sarahvermette.ca/uploads/1/3/0/7/130740205/8227811.pdf
    • http://columbinecabinsco.com/uploads/1/3/0/4/130476427/pufunume.pdf
    • http://travertineversaillespattern.com/uploads/1/3/0/4/130483155/58cb1.pdf
    • http://clevelandhardwarelonoke.com/uploads/1/3/0/6/130605393/3408508.pdf
    • http://draelainevieiraamancio.com/uploads/1/3/1/0/131069940/1473751.pdf
    • http://trophybearer.org/uploads/1/3/0/5/130545260/27681f85221dfb.pdf
    • http://newtrailpioneer.com/uploads/1/3/0/5/130589295/56157.pdf
    • http://rentalsandroommates.net/uploads/1/3/0/6/130620625/6272469.pdf
    • http://maureenastriddesigns.com/uploads/1/3/0/5/130539215/vegatuf.pdf
    • http://apostlecharlaynehenryministries.com/uploads/1/3/0/2/130289291/243359.pdf
    • http://mysecureverification.org/uploads/1/3/1/3/131383493/8664678.pdf
    • http://washingtonbusinessforclimateaction.com/uploads/1/3/0/6/130604289/lurot.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_off00007eee.bin
e9c9c5634b6b468c72926b4ba12e593fe81879476ae1d20cc71967712f4f0c31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEE 7960 bytes

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