MALICIOUS
232
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document contains multiple embedded URLs pointing to suspicious domains, with one identified as a known malicious redirector. Heuristics indicate a social-engineering lure, specifically a fake download button or browser update prompt, designed to trick users into clicking. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to download a second-stage payload or redirect to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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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/123?utm_term=android+google+search+bar+apps In PDF document text
- https://static.s123-cdn-static.com/uploads/4480383/normal_5fe0d63c6a54b.pdfIn PDF document text
- http://gawudubigojan.getenjoyment.net/80741927737.pdfIn PDF document text
- http://reduslimitaly-ufficiale.site/synonyms_and_antonyms_worksheets_for_high_school0k22k.pdfIn PDF document text
- http://organic100.fun/96508271998rjrrj.pdfIn PDF document text
- http://jewogipuwivi.medianewsonline.com/how_to_find_sim_current_location.pdfIn PDF document text
- http://kirakexig.mypressonline.com/41669700618.pdfIn PDF document text
- http://ses-paypal.com/781209245543bt94.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383695/normal_5fe31cc2b8eb3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444351/normal_6028405110d67.pdfIn PDF document text
- http://esclick.pro/what_does_personal_behavior_mean9dqmf.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454988/normal_5ff1f66fe518f.pdfIn PDF document text
- http://mgacessoria.online/8521896482223tsu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/guwutivupudutu/asp.net_core_2.0_tutorial_in_hindi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6667fc05-5d05-47a5-a002-e1810b0e6f20/17386229309.pdfIn PDF document text
- https://s3.amazonaws.com/verirejon/lorefunidumadegenimojo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef12e8c9-f257-4d15-91fb-e3a7d5c882d8/musavixamawi.pdfIn PDF document text
- https://s3.amazonaws.com/jiguwuzobozobaz/38090702940.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/679d0060-f637-4a33-8d42-5940ba8605c9/kematavipixipiduje.pdfIn PDF document text
- http://koradanizepagow.myartsonline.com/what_are_the_7_principles_of_gdpr.pdfIn PDF document text
- https://s3.amazonaws.com/kujapomib/39241700454.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_off0000e655.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE655 | 5464 bytes |
SHA-256: 26bfe2bd34f223797c95d76a30ac39a674a1e248f0c5a1b9e3a65d4c17d66bcf |
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font_01_sfnt_off0000f8de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DE | 11416 bytes |
SHA-256: e97f461cd6b9fc98ccb9ea90a709247d5cfb3dd00aeff94a0b62d6df3e2f8b3c |
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