MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, with a primary malicious URL identified as 'https://gimoguvi.ru/strik?utm_term=5+steps+of+scientific+method+by+john+dewey'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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 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://gimoguvi.ru/strik?utm_term=5+steps+of+scientific+method+by+john+dewey PDF link annotation
- http://nanonewe.scienceontheweb.net/13097382920.pdfIn PDF document text
- http://bofinaposo.iblogger.org/moburuvaxoxegedowura.pdfIn PDF document text
- http://pitusugir.22web.org/vosewatuxaviku.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/ce40bff1-6a60-445e-8661-481f2ece4653/vadozatudukozekodekit.pdfIn PDF document text
- http://medazupu.onlinewebshop.net/vajapanipibudiwawox.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef9374b0-61aa-4f62-86f6-da11c5bfb1ab/18201384302.pdfIn PDF document text
- https://s3.amazonaws.com/jeromopelurab/jorofupaxisol.pdfIn PDF document text
- https://s3.amazonaws.com/baposivarabuj/51310985409.pdfIn PDF document text
- https://35057dd6-1d18-4acd-96c9-af3b7fddc7cd.filesusr.com/ugd/978dd5_86fbd817731a40b2903d21a7f96d6204.pdf?index=trueIn PDF document text
- https://042e50b4-45d0-4577-915a-c14d43ab21ad.filesusr.com/ugd/18f527_a8fefe7d057f40d8806c1f2f34449ed0.pdf?index=trueIn PDF document text
- https://67a4337f-2b79-4d04-9c1d-2578c80f4945.filesusr.com/ugd/964009_8f77d63794d2405faf9c866c4027f523.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dosalapasenow/fha_guidelines_for_student_loan_deferment.pdfIn PDF document text
- http://wufagezigedo.onlinewebshop.net/magnavox_hdd_dvd_recorder_h2160mw9.pdfIn PDF document text
- https://6fd4412c-3e6e-4f21-a9af-8137ffc6c0d9.filesusr.com/ugd/03469c_2677a6626a1e44d1ac2b9bde2ca2db2c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5010482b-2185-4669-91c7-6f119da96fc8/how_do_frogs_hop.pdfIn PDF document text
- https://ac402fee-74f4-49a6-b5a4-6a03c6a057de.filesusr.com/ugd/b0cd75_403ac99b05f144c7a618a099ca3d0918.pdf?index=trueIn PDF document text
- https://73856814-13bb-4d44-aeaf-752cce6ba6bd.filesusr.com/ugd/a0d21a_6056457d8ab44565a26cec890483ef39.pdf?index=trueIn PDF document text
- http://funuduki.rf.gd/krisenergy_annual_report_2018.pdfIn PDF document text
- http://fapojobikajezuz.epizy.com/gojesujefosasopereser.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fca9659c-7794-4d32-aa3b-b7b528d3e0a5/apc_back-ups_es_500_constant_beep.pdfIn PDF document text
- https://0b21792c-a699-4cf4-8833-5910c6ad58af.filesusr.com/ugd/b0b521_65f4499699db4299b97ec00583ce36ad.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off00012573.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x12573 | 27548 bytes |
SHA-256: 902228b9ca4c9d786579b0d958cf3f4ba9dd1116cc6282f36def3b1e15d30b70 |
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font_00_sfnt_off0000edda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDDA | 5496 bytes |
SHA-256: 85456a1ef1b08b1dc98d9617756357f0e0231409d94a602752238cfc6ebf3f1c |
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font_01_sfnt_off00010087.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10087 | 10700 bytes |
SHA-256: 212bc20604cd6001b071fe01847db8471506d917751ce4c9d1dd1fd5df92bc54 |
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