Malicious PDF — malware analysis report

Static analysis result for SHA-256 0754e0c0c1fac805…

MALICIOUS

PDF

22.9 KB Created: 2020-04-08 11:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5b26ae3d68d5b9c9520ce97ed17c7593 SHA-1: 4cacb1ad2023ee0006fc77f93bd119412e8884e6 SHA-256: 0754e0c0c1fac8054ada651d1636a348c9dce1616847c3677fef5d07ed0eb496
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF is identified as an image-only lure, typical of phishing campaigns, designed to trick users into clicking embedded links. The document contains a large number of external links, many pointing to PDF files, suggesting a link farm or a method to distribute malicious content. The ML classifier strongly indicates maliciousness, and the presence of numerous suspicious URLs supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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 22 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://adamsoldit.com/uploads/1/3/0/6/130639891/130639891.html#advent+-+bible+study+book+the+weary+world+rejoices
    • http://nagira-casino.com/uploads/1/3/0/7/130738769/840aae793761.pdf
    • http://thelegalmastermind.com/uploads/1/3/1/3/131381411/2783252.pdf
    • http://claireannemcwilliams.co.uk/uploads/1/3/0/5/130552055/rirubizumor.pdf
    • http://tegelbedrijfdejonghe.be/uploads/1/3/0/6/130639721/jomuta.pdf
    • http://juliajayart.com/uploads/1/3/0/6/130604549/farezesadu-futenelomugiduk-zipusexoxoputu-teboligedovo.pdf
    • http://al-haddad.org/uploads/1/3/1/4/131483317/wupikupuw.pdf
    • http://angelamckinizie.com/uploads/1/3/0/6/130639945/jadefulu.pdf
    • http://onagoldmine.com/uploads/1/3/1/4/131407481/zuvojaf_ditixuroxoxu_rezalefaros.pdf
    • http://kitchenmen.org/uploads/1/3/1/3/131398359/1374811.pdf
    • http://soupeduchef.com/uploads/1/3/0/5/130539004/dab37.pdf
    • http://stjohnstottington.org.uk/uploads/1/3/0/2/130270902/0487215f20d1a.pdf

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