MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://philabc.ru/pbw?utm_term=historical+geology+pdf+download PDF link annotation
- https://zerakilun.weebly.com/uploads/1/3/2/6/132695460/6205832.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369768/normal_5fd0a3a36e9c7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413718/normal_5fd1bb66dee7c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402944/normal_5fe4541b9eb68.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459165/normal_604e91a7b7eaa.pdfIn PDF document text
- https://jugidemavewug.weebly.com/uploads/1/3/4/2/134265355/c127d90916d.pdfIn PDF document text
- https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/riwor.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402246/normal_5ff7b27da85d3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463275/normal_60413db6ac8cc.pdfIn PDF document text
- https://tagipuzato.weebly.com/uploads/1/3/0/7/130776724/kunigiwekefe.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4493867/normal_6000f3c6640bc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388037/normal_5fe163d2a7b98.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421781/normal_5ff8aba6003f0.pdfIn PDF document text
- https://febujularezot.weebly.com/uploads/1/3/0/8/130813651/2794113.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463002/normal_600f130e050f7.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/af9f0832-1111-4ddf-ab39-5b325c17e2e0/8748627719.pdfIn PDF document text
- http://finebov.pbworks.com/w/file/fetch/144440046/72662663003.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5926a242-129b-4eed-95b7-4485ca7a645a/zevupuwikavebiwifu.pdfIn PDF document text
- http://giresizuloki.pbworks.com/f/what_happens_in_michael_vey_7.pdfIn PDF document text
- http://tazijebep.pbworks.com/w/file/fetch/144428667/stand_by_me_doraemon_2014_hindi_dubbed.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f97d87b6-99e0-4956-b268-b28456b15782/rumijunojisit.pdfIn PDF document text
- http://fodorafirig.pbworks.com/w/file/fetch/144445806/ue_5.7_semestre_5_ifsi.pdfIn 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_off0000e3b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3B1 | 5476 bytes |
SHA-256: 839057c2238737b6e612daa58749dcfd1e990b9ccec9ce460d0141ae81cee2f9 |
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font_01_sfnt_off0000f67c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF67C | 10688 bytes |
SHA-256: d34d501f36d6d07456f0030f3557b0fdc674c3a5ea585c3a98a4a00de6dce3fe |
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