MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The presence of a 'Fake CAPTCHA' heuristic suggests the document's primary goal is to deceive the user into performing an action, such as clicking a link or executing a command, to bypass verification. The embedded URL points to a suspicious domain, likely part of the attack chain.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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=dunkin+donuts+iced+caramel+macchiato+carbs PDF link annotation
- https://cdn-cms.f-static.net/uploads/4495525/normal_60115f64a5664.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411700/normal_5fe17f14e4819.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464313/normal_6029abb76f016.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479925/normal_6017057a04412.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375351/normal_5fe3ba44363e9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408335/normal_605b20bba2b86.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480174/normal_60617d84b2d56.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/f0f5c3a2-1527-4dc5-8598-cc7b08bffc17/what_rhetorical_devices_are_used_in_speeches.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd95f99f-b7a7-4944-9fce-5acfdbd823e3/93818529927.pdfIn PDF document text
- http://mipaduverututus.rf.gd/bunkering_procedure.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6da4834d-0985-4f97-a260-b3d80e6a75dd/85310089647.pdfIn PDF document text
- http://surifetopene.epizy.com/variation_classification_guideline_2016.pdfIn PDF document text
- https://s3.amazonaws.com/padadutiseni/pemirabuxomivupu.pdfIn PDF document text
- http://nifopufu.epizy.com/rovojiv.pdfIn PDF document text
- http://suvokejixu.epizy.com/game_battlefield_1_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb57b69d-2783-4a0b-9b54-7a67782baecf/7306818215.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef1ffef0-8fb4-4930-ac45-790202a912d8/como_cambiar_el_formato_de_fecha_en_excel_dia_mes_ao.pdfIn PDF document text
- https://s3.amazonaws.com/bodajaku/nesasivazijudex.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd395f27-ab4d-438c-b471-1b25c4144811/how_to_reset_lg_dishwasher.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/089a7404-7455-4206-b2fc-71e5b891f990/walt_whitman_as_a_poet_of_democracy.pdfIn PDF document text
- https://s3.amazonaws.com/xifabilejilab/96858391219.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ce9f4ce5-4cfc-4c27-93b3-c1a343e4ce12/the_silver_chair_movie_review.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_off00010794.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10794 | 5384 bytes |
SHA-256: 899a65ad27eadb70abc39318d22524861b981f63ea49cb9bc27bd2c6a00da79c |
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font_01_sfnt_off000119b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B9 | 11692 bytes |
SHA-256: f7477d50ff64b24e6f8456143fc8d51fced83b327b3f99dc9c00bfb505dec9be |
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