Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5452dc2f4323e24…

MALICIOUS

PDF

16.5 KB Created: 2020-03-19 15:11:51 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0d60466e402f5eb9daf4ed641fcd2275 SHA-1: 07ccd00e2e518ec540f6abd4836e72a265ef6875 SHA-256: b5452dc2f4323e24969185298da5e5c0e4ce1a649f132b6be776bfec28b216d2
112 Risk Score

Malware Insights

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

This PDF document is designed as a lure, presenting itself as a screenshot of a game or search result to entice users to click. The PDF_IMAGE_LURE heuristic confirms this, noting the document's structure is typical for phishing or malware delivery. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm or redirection mechanism. The primary IOC is the initial URL embedded in the document, which likely serves as the entry point to the malicious chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

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 16 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://josephdjackson.com/uploads/1/3/0/6/130621098/130621098.html#pokemon+master+trainer+game+ebay
    • http://www.morganandco.builders/uploads/1/3/0/5/130539092/gadugoja.pdf
    • http://baraspektrum.com/uploads/1/3/0/6/130620436/9602843.pdf
    • http://ncahrmm.com/uploads/1/3/0/8/130813399/1710186.pdf
    • http://www.bellastar.net/uploads/1/3/0/7/130776221/zaxefafip.pdf
    • http://impuestosinteligentes.com/uploads/1/3/0/7/130776420/9801284.pdf
    • http://www.oxidizedglasscom.com/uploads/1/3/0/4/130436410/1100600.pdf
    • http://scoooper.nl/uploads/1/3/1/1/131164315/6473309.pdf
    • http://jesusloveskorea.com/uploads/1/3/0/6/130640047/kebetujexad.pdf
    • http://dmit.hk/uploads/1/3/0/5/130543740/lisaxodononupadudega.pdf
    • http://campfiresandcoctails.com/uploads/1/3/0/9/130969993/6535476.pdf
    • http://kheeterwgu.com/uploads/1/3/0/2/130270985/vimubupitidi.pdf

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