MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting it functions as a link farm, potentially for SEO manipulation or to host phishing content. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic strongly support this attack pattern. No scripts were extracted, but the nature of the embedded links points towards a phishing or malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://golowaki.ru/123?utm_term=2+decimal+places+worksheets PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369638/normal_5fd6738003b5f.pdfIn PDF document text
- https://xerirexu.weebly.com/uploads/1/3/4/5/134592073/katigejofina.pdfIn PDF document text
- https://mafizawejibon.weebly.com/uploads/1/3/1/3/131383772/1f8a4c01d027549.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455376/normal_6004faf038906.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4503533/normal_5fedab9bc1bf2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402519/normal_5fda64c42993a.pdfIn PDF document text
- https://fasitidepev.weebly.com/uploads/1/3/4/3/134312072/pegibidumadosab_sivutata_duzodobanima.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4467975/normal_60b01e8609576.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472793/normal_603cea82d6b3f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403262/normal_5fcf1ca266ad5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418199/normal_605cdeb971e3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483855/normal_601cacfc0f491.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450513/normal_6065935a14173.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473047/normal_6009ac51a344e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488809/normal_602dff7d0e8dd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387718/normal_605f9805e1acc.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4502246/normal_60b2b2e69453f.pdfIn PDF document text
- https://guvolobojifo.weebly.com/uploads/1/3/4/7/134733869/9096357.pdfIn PDF document text
- https://jofexudu.weebly.com/uploads/1/3/5/2/135295173/4619cd8f.pdfIn PDF document text
- https://foralesu.weebly.com/uploads/1/3/4/0/134096101/9eb5ec46dfaa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e668.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE668 | 5504 bytes |
SHA-256: 01082387ccbfff9b25297894315157c829a9cd0723c0b3442b2059dee9c70a24 |
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font_01_sfnt_off0000f8ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8FF | 10932 bytes |
SHA-256: 8f9c605d799ee4a03d7e627d1c007bf221d6931d2bdc56e02dd0f47b1b686979 |
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