Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dab703c10f2d043…

MALICIOUS

PDF

61.1 KB Created: 2021-01-06 02:51:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 963c476cbd837b161d0d395839ccd646 SHA-1: 9a04e09c3a2cda7e264db816aefa381dfb93e219 SHA-256: 5dab703c10f2d043e59e114210e83cad18aa768cde4055289b2b3f45b056fb1a
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed for SEO manipulation or traffic redirection. The embedded URL 'https://traffset.ru/aws?utm_term=medical+fitness+certificate+form+42' indicates a phishing lure related to a medical certificate. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

Heuristics 5

  • 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 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://traffset.ru/aws?utm_term=medical+fitness+certificate+form+42 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369638/normal_5fd3c7922dbfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454052/normal_5fa1cc3a1ad4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390642/normal_5f95213d1a5c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381287/normal_5fd6de400f7a1.pdfIn PDF document text
    • https://bemitobiz.weebly.com/uploads/1/3/4/6/134681698/576912.pdfIn PDF document text
    • https://gabesusot.weebly.com/uploads/1/3/4/8/134895193/1e091.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f872d5f205aa.pdfIn PDF document text
    • https://labopepiw.weebly.com/uploads/1/3/4/7/134747507/kalasijigi-finumebog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414696/normal_5fa902ce53048.pdfIn PDF document text
    • https://fafefojesuvun.weebly.com/uploads/1/3/4/6/134651362/1765382.pdfIn PDF document text
    • https://gedepavo.weebly.com/uploads/1/3/5/3/135391693/dazemibexo.pdfIn PDF document text
    • https://cdn.sqhk.co/taxeseta/jhjjabi/bolevajetafenugorired.pdfIn PDF document text
    • https://pojuzalik.weebly.com/uploads/1/3/4/2/134235388/nubulipiz-kodaj-veniwitawagesi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e636a278-53c7-4efd-a1ca-9edcbfc6620b/kotamevik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c80e6d72-734c-4e2c-b42b-a9c0b4bcc880/ravefovexodefitonomi.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74E 5392 bytes
SHA-256: 83231d965129b107145ec9498770caf2d650caac6758c84bcaed16aa1a0dd90a

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