Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c14e6b41bd65407…

MALICIOUS

PDF

36.4 KB Created: 2020-05-16 08:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a872367fd693995bc2922b7699b29cbd SHA-1: 1820b8ada0c7225e853aeeda34dffcc27e698258 SHA-256: 1c14e6b41bd65407e0894157a77b70ebe669ad87da5460e6a955082187284386
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, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body text, though partially corrupted, contains a lure related to 'Vidmate free for windows 8' and points to an external URL. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://groundedbygracechristiancounseling.com/uploads/1/3/0/4/130483638/130483638.html#vidmate+free++for+windows+8
    • http://loveleaving.com/uploads/1/3/1/6/131636689/e9213d3e3b7f6e.pdf
    • http://lilarose.xyz/uploads/1/3/1/4/131452884/f19f9.pdf
    • http://spinnakerworldwide.com/uploads/1/3/1/3/131398374/4178216.pdf
    • http://sbr-enterprise.com/uploads/1/3/1/6/131637503/1538624.pdf
    • http://the-coronavirus.net/uploads/1/3/0/7/130775354/sopofugasufi_gusovun.pdf
    • http://createdbyvalsco.com/uploads/1/3/0/7/130739443/1712873.pdf
    • http://fsdsgn.com/uploads/1/3/1/8/131857140/gokuburuzabir.pdf
    • http://thebesttoyschnauzers.com/uploads/1/3/0/6/130604495/4e4dbd592a5.pdf
    • http://therusticarrowpittsburgtx.com/uploads/1/3/0/4/130476974/rokigavegul.pdf
    • http://elevatedwork.com/uploads/1/3/0/2/130272428/zesanutuguzani.pdf
    • http://longrangeinternational.com/uploads/1/3/0/5/130588268/f6c225df31e81.pdf
    • http://underlineconnections.com/uploads/1/3/0/4/130483322/1241748.pdf
    • http://purbeckplumber.com/uploads/1/3/0/6/130604042/maxalosizakinoseb.pdf
    • http://emoryreindesigns.com/uploads/1/3/0/7/130776272/lawirudi.pdf
    • http://olymac.com/uploads/1/3/0/5/130551728/86b7762370c7.pdf
    • http://donparishagency.com/uploads/1/3/0/4/130476454/3303133.pdf
    • http://forzagarage.net/uploads/1/3/1/0/131071315/322083.pdf
    • http://diapersanddogfood.com/uploads/1/3/0/6/130639994/6368819.pdf
    • http://hostjovi.com/uploads/1/3/1/6/131606073/fivemafobe-zabewa-vamorafodabileg.pdf
    • http://beachhouseinsrilanka.com/uploads/1/3/0/9/130969925/2dbbbf163.pdf
    • http://verdantseniorliving.com/uploads/1/3/0/8/130874570/fakemepetip-pemufimubupenil.pdf
    • http://metamorphosismediamagic.com/uploads/1/3/1/1/131163763/61db07004d41d7.pdf
    • http://tealporrini.com/uploads/1/3/0/5/130550789/pololob_rozalajebabimu_gisuzurifaw.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_off00006176.bin
4c8f1fde38a6020441487305ee49050f6b473e71a52e2ae190a4901344d66ebf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6176 10508 bytes

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