MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. The embedded URL 'https://pelibifir.ru/award?keyword=bacteria+definicion+pdf' is a primary indicator of the lure used.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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://pelibifir.ru/award?keyword=bacteria+definicion+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4419198/normal_605d9511c1ae7.pdfIn PDF document text
- http://cactusvpn.live/17986741561ijrq9.pdfIn PDF document text
- http://cardioactiveuficiale.site/topatixuto43ojx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388825/normal_602bad72f2267.pdfIn PDF document text
- http://peludofnor.fun/jozajatibuyea62.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501482/normal_6059963e566f1.pdfIn PDF document text
- http://pankreatitum.ru/lewis_structure_worksheet_with_answers6ult4.pdfIn PDF document text
- https://tajirokobi.weebly.com/uploads/1/3/4/9/134901714/f1fbe9d16f8831.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4497688/normal_5ff8058c470e7.pdfIn PDF document text
- https://gexamefirizawem.weebly.com/uploads/1/3/4/6/134668325/jokaxuze-fapera-levoposoxezoz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420775/normal_605707d36f65f.pdfIn PDF document text
- https://repotadidutu.weebly.com/uploads/1/3/4/3/134310826/ruwomewazikure-dumalenosizi-zeber.pdfIn PDF document text
- https://sajogosekatoja.weebly.com/uploads/1/3/4/6/134682383/239154d9108f.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/a3cdf857-2cf3-4eeb-bc7a-77b12325d889/rukikukosijanubeweke.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2cbb6e27-bd35-4eaf-9642-b3750cf2016a/weber_genesis_2000_grill_cover.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a4fe4f84-f725-46c9-acbf-171611b2ff74/41600315711.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/276f06a2-d48c-42e3-9475-d779897d2536/dabejuxilotebi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dde084ac-7c99-4dfc-bd6d-a248182dd860/xowoweneminanorutevi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/34bd8a2d-fa1c-438f-b933-003a812f121e/me_earl_and_the_dying_girl_netflix_uk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f716882a-483c-4e46-aada-1707709cb5e9/5007893299.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/958b528f-2bec-44ee-8916-04bf675a757f/what_is_the_visual_vocabulary_used_for.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8f98574b-e2c1-430b-9383-8e5004a6d9cc/how_to_use_magic_bullet_mini_blender.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/52fddbe8-2b71-4744-a2ef-b162ede9d08a/el_rey_del_tomate_pelicula_mexicana.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6de541d-625c-413b-bcf4-5fb962d4fb4b/diagrama_de_fases_del_dioxido_de_carbono_explicacion.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0dfef3b9-248d-4011-a18e-1f3d77f7d6ad/bopakugarofofibo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b0d70a57-6e37-45b8-b255-e0934d4d1ebb/15741589007.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/01619532-6486-4c62-9b50-0b214f474de7/how_to_test_pool_salt_cell.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_off00010156.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10156 | 4988 bytes |
SHA-256: 01fbbd182f7f9bd0b93863635328fe94819349b0928192c6cf71e9a567632c76 |
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font_01_sfnt_off00011266.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11266 | 13068 bytes |
SHA-256: ff7a98da19295ec1138cdfb82bdbd0c27124aec0760df4edfb795972cbdef0e6 |
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