MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating it likely exploits vulnerabilities or contains malicious content. The file functions as a link farm, embedding numerous external URLs, with at least one identified as a potential phishing or malicious redirect. The presence of a link farm on disposable hosting suggests an attempt to obscure the true destination or distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://wastran.ru/pbw?utm_term=pancitopenia+defini%25C3%25A7%25C3%25A3o+pdf+gratis PDF link annotation
- https://wubepina.weebly.com/uploads/1/3/4/7/134721378/vuladowo.pdfIn PDF document text
- https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/d5babc4aaa208d.pdfIn PDF document text
- https://pinobuni.weebly.com/uploads/1/3/0/9/130969003/0412d.pdfIn PDF document text
- https://tubababekegoso.weebly.com/uploads/1/3/4/8/134880125/893ff1b071e7.pdfIn PDF document text
- https://sidusumidiwef.weebly.com/uploads/1/3/4/3/134366372/lazafajixiselusisev.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380392/normal_5fd9c9cb6c3d1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4478685/normal_6004be0f32571.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4530868/normal_5fe147aea7012.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/98742d91-2fea-4496-89ef-84f71be87286/4681153441.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/34b225de-9c94-44f7-a3ea-f3ab164cbb26/ejercicios_de_operaciones_combinadas_para_primaria_con_respuesta.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bbf86a5d-17fd-44b2-b2d8-832a0bdd939f/why_has_my_dryer_stopped_heating.pdfIn PDF document text
- http://rawumadakora.pbworks.com/f/63952535976.pdfIn PDF document text
- http://xutosop.pbworks.com/f/free_video_chat_with_strangers_app_in_india.pdfIn PDF document text
- http://lesokulovisu.pbworks.com/w/file/fetch/144639123/list_of_depths_code_vein.pdfIn PDF document text
- http://negovijalulu.pbworks.com/f/basic_algebra_worksheet_with_answer_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/896f09cb-3e91-4dd5-bdb7-07c509b44139/how_to_loosen_tight_canvas_shoes.pdfIn PDF document text
- http://fisukafetif.pbworks.com/f/zombie_shooter_2_apkpure.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/44281ba6-d114-413d-89d7-e1f7ef04da3f/windows_10_tutorial_for_beginners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a668455f-5baa-40de-aeea-4d3bdb9f7c6c/literary_criticism_definition.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_off0000f78f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78F | 5792 bytes |
SHA-256: 43f899bc4b6b95fad580fe471526c462b0815d8aee4605f8b0c3acd92f30ddc6 |
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font_01_sfnt_off00010a84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A84 | 14428 bytes |
SHA-256: eb9eb0334cc945070019bc166f8d2e82afabe56efd4b576a4accf6b0122f47f2 |
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