Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ef6419e39d36eb…

MALICIOUS

PDF

23.6 KB Created: 2020-03-16 00:59:27 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d28382d0173355f59c5a9bbb1ddf2be8 SHA-1: 6863622aaf76e544efb98071bdd3d80aabde181d SHA-256: 41ef6419e39d36eb05fc5df4d480df2ea2d51c6b1f9eda8fbc51394a129296a0
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF is identified as an image-only lure, typical for phishing campaigns. It contains numerous external links, many pointing to other PDF files hosted on similar domains, suggesting a link farm or redirection mechanism. The primary URL extracted, 'http://host205.carmichaelnl.com/uploads/1/3/0/8/130874165/130874165.html#featherstone+high+school+ofsted+report+2015', is presented as a report but likely leads to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 23 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://host205.carmichaelnl.com/uploads/1/3/0/8/130874165/130874165.html#featherstone+high+school+ofsted+report+2015
    • http://www.mariehoarau.com/uploads/1/3/0/8/130874223/rasewabo.pdf
    • http://wearejanedoe.com/uploads/1/3/0/5/130540592/rixememabivoz.pdf
    • http://knuckleswhiterock.com/uploads/1/3/0/4/130488759/pabekedume.pdf
    • http://jonathandmello.com/uploads/1/3/0/6/130620325/e3ff1b82d0057.pdf
    • http://estudiorins.net/uploads/1/3/0/6/130639701/fabol_numesiwekap_linutifejuweg.pdf
    • http://www.madewithardour.co.uk/uploads/1/3/0/6/130604072/digulemitaw.pdf
    • http://35ewc.com/uploads/1/3/0/6/130604887/648977.pdf
    • http://blossomsandbean.com/uploads/1/3/0/7/130738647/fdeea.pdf
    • http://10thkind.com/uploads/1/3/0/6/130620694/pajoxuwox-mevisagatuwuzos-kesafilatajar.pdf
    • http://missharper.org/uploads/1/3/0/6/130605001/lujenum.pdf
    • http://emsbackoffice.com/uploads/1/3/0/2/130287973/b3c1dea15c3.pdf
    • http://acdavisbass.com/uploads/1/3/0/5/130588948/84dded295.pdf
    • http://skytunestudio.com/uploads/1/3/0/7/130738644/rolubudosur-vulofebediruguj-danomeg.pdf
    • http://abetamassage.com/uploads/1/3/0/7/130739745/4977436.pdf
    • http://snowflakeinsurrection.org/uploads/1/3/0/5/130588272/9341069.pdf
    • http://www.pamjarts.com/uploads/1/3/0/7/130776033/zesifo.pdf
    • http://thedjbsmooth.com/uploads/1/3/0/5/130543188/54ef1c3e8.pdf
    • http://martialartshealthandfitness.com/uploads/1/3/0/2/130272428/a5c8707f7fd.pdf
    • http://gbnobbs.com/uploads/1/3/0/9/130969062/wafab.pdf
    • http://dravivadawn.com/uploads/1/3/0/6/130621141/3587065.pdf
    • http://mila-travels.net/uploads/1/3/0/5/130544968/bexoxobigaser.pdf
    • http://ruthlessprogression.com/uploads/1/3/0/2/130271139/dunapiveto-peveniki-wugov-nazibefit.pdf
    • http://dostal.at/uploads/1/3/0/7/130775734/losilomu.pdf
    • http://bob-tait.com/uploads/1/3/0/6/130640090/4c685507c9abff7.pdf
    • http://fryingpanfoodadventures.com/uploads/1/3/0/7/130739059/vexuf-serurulaka.pdf

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