Malicious PDF — malware analysis report

Static analysis result for SHA-256 303cc520cd3e74b5…

MALICIOUS

PDF

92.4 KB Created: 2020-12-22 01:18:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 22819ea1f31c66b991c7c0b956b59ebe SHA-1: a695929fa4415eb8131d1e07e5860015e229a963 SHA-256: 303cc520cd3e74b5bce9f2ec311bf7ba673f12673e8d7205131df89405373642
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to redirect users. The heuristic PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM indicate a pattern of generating SEO-optimized PDFs to host these links. The ClamAV detection as Pdf.Phishing.Trojan further supports a malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9201

Heuristics 5

  • 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 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.
  • 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 https://traffnew.ru/aws?utm_term=separation+agreement+form+ontario PDF link annotation
    • https://vamekatowozi.weebly.com/uploads/1/3/0/8/130814347/4841239.pdfIn PDF document text
    • https://fofirajajamide.weebly.com/uploads/1/3/4/6/134643930/f3ce89f63264d.pdfIn PDF document text
    • https://tofojuduvebexaj.weebly.com/uploads/1/3/4/6/134650498/9928788.pdfIn PDF document text
    • https://dopijixofovaje.weebly.com/uploads/1/3/4/6/134692352/sosapitekoko.pdfIn PDF document text
    • https://rokumetusemep.weebly.com/uploads/1/3/4/3/134382705/davifaj-pevarapidizub-fiwilexojite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92fa22fb-22db-4b9f-ba18-ee170d30bc11/7078849178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b408f73a-5546-4b53-8481-e4171d54ef1d/caravan_whiplash_drum_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/software_functional_requirements_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf55a3173fb5383b9934f0/1606374821283/subcooled_water_english_units_tablet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a3020b6b03258f5599b8/t/5fcb011d0814be4f73e19599/1607139616182/bemowokizutokadevun.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b82e11f6a419848b6c75/t/5fc3510afa04221c718a2fde/1606635786981/lebisora.pdfIn PDF document text

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