MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of embedded links, many pointing to external PDF files hosted on disposable domains or link farms. One critical heuristic identified a link to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/strik?utm_term=why+were+the+members+of+the+third+estate+dissatisfied+with+the+old+regime In PDF document text
- https://cdn-cms.f-static.net/uploads/4457332/normal_6064842d31402.pdfIn PDF document text
- https://tirotulesi.weebly.com/uploads/1/3/4/8/134849952/tilakenawunefe.pdfIn PDF document text
- https://cdn.sqhk.co/bugolajoxodu/gjaifr8/free_stuff_usa.pdfIn PDF document text
- https://xonatiwomunonow.weebly.com/uploads/1/3/1/8/131856992/kozeto_fotazaribi_relapu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450046/normal_6057e8d8339f6.pdfIn PDF document text
- https://cdn.sqhk.co/dudilirugido/gjfjghh/duck_life_space_full_game_unblocked.pdfIn PDF document text
- https://lujukote.weebly.com/uploads/1/3/2/7/132712447/dupivote.pdfIn PDF document text
- https://bonopabugo.weebly.com/uploads/1/3/4/5/134581776/9512078.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4503874/normal_601914f5e1386.pdfIn PDF document text
- https://cdn.sqhk.co/sovokeduseb/WJl9BmZ/88204709159.pdfIn PDF document text
- https://netigobulon.weebly.com/uploads/1/3/4/0/134096742/digegiragituj-rodoputenabake-dipaledox.pdfIn PDF document text
- http://kufadudaz.iblogger.org/rotamon.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483083/normal_5fddc565d70ec.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366665/normal_601755b1e70cb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463543/normal_60383272b33d8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393635/normal_603370aa916da.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://punugituk.epizy.com/araria_map.pdfIn PDF document text
- http://kufitaxasatuze.rf.gd/bissell_proheat_2x_revolution_pet_brushes_not_spinning.pdfIn PDF document text
- http://rilifufamorupud.epizy.com/dozawavisavula.pdfIn PDF document text
- http://pekuvem.epizy.com/basketball_game_score_sheet.pdfIn PDF document text
- http://tizepadeda.rf.gd/er_app_apk_for_firestick.pdfIn PDF document text
- http://lafasusatar.rf.gd/31135759124.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_off000156c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x156C6 | 5668 bytes |
SHA-256: fa48d7307490f215d885a9f129b6a3035ea741c7887b857b014fc44126a69bee |
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font_01_sfnt_off00016a04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16A04 | 13412 bytes |
SHA-256: 8487f1eb381fdfeb0060a8d9c96b1c994a2cc24ed2d9ee54747412e86a648977 |
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