MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is classified as malicious, exhibiting characteristics of a link farm designed to redirect users to external websites. The PDF contains numerous external links, with a primary suspicious URL being 'https://seumenha.ru/award?keyword=handbook+of+cardiac+anatomy+physiology+and+devices+pdf'. The presence of a link farm and the ML classifier's high confidence score indicate a phishing or malware distribution attempt.
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://seumenha.ru/award?keyword=handbook+of+cardiac+anatomy+physiology+and+devices+pdf PDF link annotation
- https://cdn.sqhk.co/rigizisojix/fifhbih/loborajuvoma.pdfIn PDF document text
- https://cdn.sqhk.co/rekosiseweno/JOialnD/maxpreps_ohio_soccer_rankings_2020.pdfIn PDF document text
- https://cdn.sqhk.co/nuwezomu/hijgibx/free_vegas_casino_slots_apk.pdfIn PDF document text
- https://cdn.sqhk.co/medujebukoma/YcjfDxT/dokiseto.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/982c88a1-f635-49c1-8459-9ff82a807177/69794498102.pdfIn PDF document text
- https://s3.amazonaws.com/jotizifime/kriya_yoga_for_beginners.pdfIn PDF document text
- https://s3.amazonaws.com/xutomoxu/preposition_of_time_and_place_worksheets.pdfIn PDF document text
- https://217ba8a6-026c-4a9e-b1ce-2eadff0a4a08.filesusr.com/ugd/3d7af5_dd8ee9a8a5b042948c124542c91634ea.pdf?index=trueIn PDF document text
- https://87d5e434-dc39-4d64-8681-877d64e204d5.filesusr.com/ugd/5660ac_7cef4a66e4e54d04855ab000265b8230.pdf?index=trueIn PDF document text
- https://728bf1be-24e3-4891-ba98-fedceca1a503.filesusr.com/ugd/3268c8_de61f437b6904adcbec1499e4567da78.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2d576119-0834-4bf3-b275-50a568584c93/51310421986.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c70b4015-ee24-4997-8bdd-efdcafbe2657/adobe_premiere_rush_download_for_pc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c86fb3ef-f475-4f58-8ba3-645258976dad/8_habits_of_highly_effective_google_managers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f1e8c038-ac05-4ea8-9a6c-eaf6820c55fb/73774244919.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a5f8240f-faff-48b5-b734-e9e2d5ffdcf6/doro_6520_mobile_phone_case.pdfIn PDF document text
- https://2e6726a7-2e78-456a-9fa1-8bc85c3b20a6.filesusr.com/ugd/76e31d_afced305a17641a194bef15df6c242ec.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/372d9642-5bef-4ab0-8734-3ec97cd988e5/25943716543.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fbee74f2-05f5-4d3f-94a8-ea62b0d50258/bumirisikawisusoz.pdfIn PDF document text
- https://s3.amazonaws.com/rexogeguxosix/gukakunesanemafiwikijo.pdfIn PDF document text
- https://f72b89be-0fa6-41ee-8162-331329ef78ce.filesusr.com/ugd/95089d_b00d2fece27740ecb2212b825d69d117.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zarusegibitumet/vadetanamovekewaj.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_off0000dea5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEA5 | 5896 bytes |
SHA-256: c54a576e462ee3699c1cb70b3226a7dadbf79d32bbbba45477400bb581e33e86 |
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font_01_sfnt_off0000f29d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF29D | 10780 bytes |
SHA-256: d13c8582058a90247be7d769cdfc515249bd34b39b88e9f7f20dc8e8cbfe1235 |
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