MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains metadata related to academic articles and PDF generation, likely serving as a lure to encourage users to click on the embedded malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://botokaw.ru/award?keyword=academic+journal+articles+pdf PDF link annotation
- https://cdn.sqhk.co/sizozizaj/giE3hhr/sovigotubalilamakar.pdfIn PDF document text
- http://xejopegig.mypressonline.com/12321918665.pdfIn PDF document text
- http://pakupuxojopef.getenjoyment.net/liviwezawanob.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425910/normal_605c5bc6db259.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487201/normal_5ffd0d449ba18.pdfIn PDF document text
- http://pinezotamex.getenjoyment.net/wedunopulufaxovu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497356/normal_60500161155ca.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387920/normal_5fd61734af240.pdfIn PDF document text
- https://cdn.sqhk.co/zubuwebofe/aGUhdQa/98577892450.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/8131550e-7b08-4015-a71b-f29b7bf019c3/marisi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c188b6b-2ffc-44c7-a049-69f65159a31a/soxobomivumomi.pdfIn PDF document text
- https://15319a82-8c66-4906-b3c2-464277991f2b.filesusr.com/ugd/070acf_994fef1bf3ba4a5e9ac65b2c6741b18a.pdf?index=trueIn PDF document text
- http://sasukagisodubex.onlinewebshop.net/76390424705.pdfIn PDF document text
- https://6f847715-c85a-45d9-ae5c-7c68cc800588.filesusr.com/ugd/6e100b_80ec9fada70344c7b467f9eacb7da69b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/396e7f99-6a43-41ba-935f-18670966b035/samuel_beckett_books.pdfIn PDF document text
- http://padegijogul.atwebpages.com/sql_developer_tutorial.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/973cbc6c-0a0f-4d0f-942c-2a9458a1b399/78287552114.pdfIn PDF document text
- https://6f81cef9-66a2-447d-9e1d-4c0427ef15c5.filesusr.com/ugd/4d935e_6d507613e9ee4f47a068d15c03ae40af.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1500e4e6-9538-4b4c-8cc1-e8eb29d79af3/which_three_branches_of_government_is_the_most_powerful.pdfIn PDF document text
- https://4d75d3c9-3a4d-4df6-84ab-e48b83d723e5.filesusr.com/ugd/cdb50c_c5db4431d58d47118d00ba9a43666f14.pdf?index=trueIn 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_off0001240c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1240C | 5368 bytes |
SHA-256: 1b89a3490e8a8fbf579463c88aaa6bc7917b87cdadb893deb7315788a3288671 |
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font_01_sfnt_off0001363c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1363C | 13180 bytes |
SHA-256: 41c9aea1b3d1574a4c882f455eb11dd0de631a2de80a6e9b94a70a0f7816a1a1 |
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