Malicious PDF — malware analysis report

Static analysis result for SHA-256 73a299d68223e179…

MALICIOUS

PDF

68.6 KB Created: 2021-02-14 10:56:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5cfcef6cc29243fd8af127c748e02922 SHA-1: 298568e0d656c6dfcaef4390b57ba956df8ea98a SHA-256: 73a299d68223e179d8361cac95981a38aab530efd1a5eb355d1775acbf581f35
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple external URIs and is flagged by ClamAV as a phishing trojan. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates a link farm on disposable hosting, suggesting an attempt to distribute malicious content or phish for credentials. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9463

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 https://jacksth.ru/wix?keyword=i+wrote+this+for+you+iain+thomas+pdf PDF link annotation
    • https://cdn.sqhk.co/mapetidul/Rhagcgh/54736472415.pdfIn PDF document text
    • http://smeshnoykir.space/function_notation_application_worksheet_answers0k7ai.pdfIn PDF document text
    • http://onlinesos.tech/figigoxofuleonu.pdfIn PDF document text
    • https://rikelakejif.weebly.com/uploads/1/3/4/8/134885243/2002856.pdfIn PDF document text
    • https://bujevajixa.weebly.com/uploads/1/3/1/6/131637668/d7ad3366335.pdfIn PDF document text
    • http://agentsoft.space/259759940247pjdm.pdfIn PDF document text
    • https://solugelefeko.weebly.com/uploads/1/3/0/7/130740562/tuwanofabi-keruluxomewen-muberexazi.pdfIn PDF document text
    • http://poxelisenaxoxig.epizy.com/vagurubifin.pdfIn PDF document text
    • http://rupiroliwon.epizy.com/bleake_island_riddler_trophy_guide.pdfIn PDF document text
    • http://fufezexu.epizy.com/acute_respiratory_distress_syndrome_nejm.pdfIn PDF document text
    • http://zomusuxine.rf.gd/kuzavebosujadafubapu.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/acc_aha_dyslipidemia_guidelines_2018.pdfIn PDF document text

Related samples 8

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