Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff45cf58de601e89…

MALICIOUS

PDF

59.5 KB Created: 2021-07-24 06:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: 1e9010581d91d70c0298fce2a3ea6157 SHA-1: 7145ccaac1bdcf52a5b9bdf802de719c2a25a93f SHA-256: ff45cf58de601e89865921ba2c01b4e938142533c3decefe0b8d9a4810351207
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8986

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://keralabiblesociety.com/fck_uploads/file/sekerajukenepapovukozonat.pdf In PDF document text
    • http://ud2-140.com/files/parolekewafibop.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/93a75ddfd898f73d3358258e05a5559b/2146269618.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16079dd87e9aa9---45298829195.pdfIn PDF document text
    • http://massarentearchitettura.com/userfiles/files/pejuvovuvapazetimenefige.pdfIn PDF document text
    • https://cqc-material.com/app/webroot/userfiles/files/ziremowukobufilabipajoxux.pdfIn PDF document text
    • https://n-zvuk.ru/upload/file/90469299932.pdfIn PDF document text
    • http://studiodrago.eu/userfiles/files/10315905480.pdfIn PDF document text
    • http://willbramephotography.com/24409384864.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/superIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+relight+pilot+light+on+a+baxi+boilerPDF link annotation

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