MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document attempts to trick users into installing remote support tools, a common social engineering tactic. The embedded URL 'https://mezovuduw.ru/strik?utm_term=physics+ncert+solutions+class+12+chapter+4' likely serves as a redirector to a malicious payload or phishing page.
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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://mezovuduw.ru/strik?utm_term=physics+ncert+solutions+class+12+chapter+4 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4447267/normal_5fe6159bd4878.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402262/normal_5ff5ce1dd0cf4.pdfIn PDF document text
- http://rolopigabetitu.scienceontheweb.net/30196524511.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459175/normal_600d52445dd29.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377663/normal_604cf209a802e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365659/normal_5fc64be88fa1f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://vizomonuzujo.onlinewebshop.net/tinovamisonenuguzirofit.pdfIn PDF document text
- https://5405d108-7f1e-482b-a10c-e06f62b7505d.filesusr.com/ugd/d941b1_e3e2d3e91c3f41a0b686c383411bb69c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xeropizuwe/novakasovazojikidotakeg.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b075621c-37b7-4669-9464-18d3382ce814/arkansas_drivers_permit_test_answers.pdfIn PDF document text
- http://fazobelo.onlinewebshop.net/ludametugajitutajej.pdfIn PDF document text
- https://689a2394-1721-4ce0-b6f7-af9f1dc0d621.filesusr.com/ugd/0f5b72_5845f5eb1b164bbc8ce3e204aeb83297.pdf?index=trueIn PDF document text
- https://2e4d99de-9d37-4ce2-abd5-0bbccafdbe51.filesusr.com/ugd/33a2e4_6ea1884f7d7a4e449de401a690a89680.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2d2de6e7-594b-4b83-a1e9-0cb127a31ab4/nespresso_vertuoline_machine_not_opening.pdfIn PDF document text
- https://s3.amazonaws.com/nakuzafol/5773861560.pdfIn PDF document text
- https://ff536187-e25a-4bd2-965b-ff1113cf40b0.filesusr.com/ugd/bfcccc_833e447dc6b54801ab1065cb4f00a70d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pipaneku/loreal_frost_and_design_mixing_instructions.pdfIn PDF document text
- https://s3.amazonaws.com/tifuwuw/vriendelike_brief_formaat.pdfIn PDF document text
- https://s3.amazonaws.com/wudibirewuduto/ripomuxijap.pdfIn PDF document text
- https://s3.amazonaws.com/xamibebulosaxug/descargar_antony_santo_mix_en_vivo.pdfIn PDF document text
- https://d1b6b380-f15b-462b-86b5-0b089ba7d90d.filesusr.com/ugd/f99a33_a4028424e6364e59b145c2773f586874.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_off0000f401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF401 | 5396 bytes |
SHA-256: 5cbb0f0f7cefbdcc3621283123a71d20b108c9f43acd1a09af1556b1f3f10d31 |
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font_01_sfnt_off00010668.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10668 | 11364 bytes |
SHA-256: 9b242109d99c8310de2f0d5f54738366f031a5016f59926d19320ebfd2b79442 |
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