Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95fed6137473891…

MALICIOUS

PDF

65.0 KB Created: 2021-09-23 06:07:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: dff9069f17a2e9f2a6d2e639a1cd8552 SHA-1: 538d37badaa1bfa9cdafc5ff4e5765937ea4f437 SHA-256: a95fed6137473891dca92664d42f041a68607988456eb062a8b76b485cfcbbe1
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous embedded URLs, many pointing to potentially malicious or unknown domains, suggests an intent to redirect the user to phishing sites or download further malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristics indicate a malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8421

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/161429b87eda1c---butuwobepege.pdf In PDF document text
    • https://southafricapools.com/contents/files/lenud.pdfIn PDF document text
    • http://itena.si/uporabnik/file/26584446144.pdfIn PDF document text
    • http://dulichgiahy.com/upload/file/59873543354.pdfIn PDF document text
    • http://telek-trans.hu/editor_up/nosevefomobipenuxuviga.pdfIn PDF document text
    • http://riversedgefm.com/files/file/zonivexevafexuwafelo.pdfIn PDF document text
    • http://deltools.com/userfiles/file/nerabubotagupip.pdfIn PDF document text
    • https://ntct-dz.com/ckfinder/userfiles/files/23199700062.pdfIn PDF document text
    • http://psycare-spb.com/userfiles/file/tewawiwadoba.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/e6a9df88521933b981e02d706694c62e/sikipexuludebul.pdfIn PDF document text
    • https://nistd.in/userfiles/file/35242542789.pdfIn PDF document text
    • https://lexconsulting.ro/webroot/files/media/1935148078.pdfIn PDF document text
    • http://sz-nuoyi.com/Upload/file/2021090618361933003.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=differentes+versions+androidPDF link annotation

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