MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
T1071.001 Web Protocols
This PDF file exhibits multiple high-risk heuristics, including instructions to bypass security software and execute commands via copy-pasting into a shell. The presence of numerous external URIs, some pointing to link farms and disposable hosting, suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 9
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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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/123?utm_term=windows+7+professional+activator+64+bit PDF link annotation
- https://cdn.sqhk.co/finelega/aiKhjia/24863376518.pdfIn PDF document text
- https://vusexojepaxeva.weebly.com/uploads/1/3/4/0/134096357/1370307.pdfIn PDF document text
- http://xelonijabi.22web.org/47716652945.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4380209/normal_5fe59acd46721.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447278/normal_602e0df9f0299.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365551/normal_6011c2338a161.pdfIn PDF document text
- https://sibanomo.weebly.com/uploads/1/3/0/9/130969588/mizusuritupo-novide.pdfIn PDF document text
- https://cdn.sqhk.co/bowazeduz/v7ey7ji/tebipapis.pdfIn PDF document text
- https://tomadukego.weebly.com/uploads/1/3/6/0/136083679/gosarawefu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408976/normal_5fd63c49b64a7.pdfIn PDF document text
- https://cdn.sqhk.co/pegipoveridi/jgeQLSN/rokekojunavo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485436/normal_5fdd6053134dd.pdfIn PDF document text
- https://cdn.sqhk.co/tavevalurov/VjeKhaM/best_bots_to_add_to_discord_server.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://purumurik.epizy.com/check_the_answer_to_a_division_problem.pdfIn PDF document text
- https://5e54824a-8208-41b0-8aeb-7c017e8cfb46.filesusr.com/ugd/f64db8_57d3a7fffff44f9d8d6ae51624c1f5f7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kezemiradigu/wipotiramopobu.pdfIn PDF document text
- https://21e323bd-7fdd-46e9-a6c7-4880e76d7610.filesusr.com/ugd/0a51c1_abbd0e42d1f2419081be93ab367fd049.pdf?index=trueIn PDF document text
- http://jabelakejirer.epizy.com/polat.pdfIn PDF document text
- https://s3.amazonaws.com/watajive/kubota_bx_250_specs.pdfIn PDF document text
- https://s3.amazonaws.com/nisiwanolom/what_are_5_reliable_sources_of_health_information.pdfIn PDF document text
- https://22e365c6-0853-42e1-82f8-83473bf9c0bf.filesusr.com/ugd/217d68_d94146c52f3d4bdfa8db57c6cef0a207.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/somamere/pflanzenbestimmung_nach_blattformen.pdfIn PDF document text
- http://varoniwarovez.rf.gd/best_customer_service_cv_template.pdfIn PDF document text
- https://s3.amazonaws.com/gomakobez/kopalarazexepipodugutum.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_off00010dec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DEC | 5776 bytes |
SHA-256: 04d80e4ec27944e34d060fe2d424d1f3bd6bdb17bcf49ab91536eff69abc83df |
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font_01_sfnt_off000121c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121C5 | 11228 bytes |
SHA-256: 0e3c32e042e15fe1472e71c824200ed02c8844683b78f9137151295b31c0dd10 |
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