MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains numerous external URIs, many hosted on disposable domains, suggesting a link farm or phishing infrastructure. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's content likely prompts the user to install a fake browser update or extension. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://zajinet.ru/strik?utm_term=search+bar+google+groups PDF link annotation
- https://lufisadoxusixa.weebly.com/uploads/1/3/4/5/134583632/3826155.pdfIn PDF document text
- http://noturufupama.iblogger.org/37551271102.pdfIn PDF document text
- https://puxolulif.weebly.com/uploads/1/3/4/3/134356270/solanamasibaxez-vuporifetoxu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459326/normal_6052410cb6d7c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483623/normal_6065ad0408faf.pdfIn PDF document text
- http://noxesim.iblogger.org/53146910482.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446790/normal_5fe0fe0e375fd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369343/normal_606527274ce4b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446263/normal_5fc93f5164b77.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459166/normal_5fcbe0656f0cb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480423/normal_6017b2f2acb51.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491969/normal_605d343cac024.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471703/normal_6004086db42c9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4385647/normal_5ff6860183d69.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://40fd9d30-e691-4ad4-9ff9-7de67b304886.filesusr.com/ugd/45b27a_e12b6e14c8f14d8e846cb3ecfb839e47.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ad13c8fa-280f-4ad2-9643-5283a01ebd36/how_to_on_heat_mode_in_ac.pdfIn PDF document text
- http://pafiduwujiredom.epizy.com/55576993562.pdfIn PDF document text
- http://jovelinejovadu.epizy.com/jeevan_lakshya_833_in_english.pdfIn PDF document text
- https://736f3f86-ac4a-4d06-be6b-3320275ea8ee.filesusr.com/ugd/cd27d0_abfa99105866490d9243b47de349e2bf.pdf?index=trueIn PDF document text
- http://luturuwuxas.epizy.com/kenave.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8cf95c0c-f310-4e52-988e-721adfa8c43e/12359519683.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6a49ed5e-37da-4a3f-a721-a5d8b1038395/42012130514.pdfIn PDF document text
- https://8271b8e8-1520-4b18-8785-2fafc8cd33e6.filesusr.com/ugd/efc97f_35f255cccfb0417bb1e00bc2d4d04fd4.pdf?index=trueIn PDF document text
- https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_78124e8d02f04cb9887657c8f33d8432.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_off0000facc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFACC | 5436 bytes |
SHA-256: 81aa84eb70a4b73a0f4a560eb07e37c8db1e7239a685d346b9a75fd2dfa9651c |
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font_01_sfnt_off00010d3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D3E | 11112 bytes |
SHA-256: bef4c42c5ccdda70d10622a4dc1463863428ed6ef3a4c97b1e677c3320b0e69e |
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