MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs pointing to compromised WordPress sites, indicating a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest the document is part of a link farm designed to host malicious content or redirect users to phishing sites. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://coretry.ru/uplcv?utm_term=cardiac+arrest+pdf+usu PDF link annotation
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c05b275b44e---8131884264.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0c35174c9---xevorapimogubijij.pdfIn PDF document text
- http://fapannimario.it/userfiles/files/37291427668.pdfIn PDF document text
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/28b68ec87b17498815c534a3b942382d/54869690018.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a62b5863c---22371598987.pdfIn PDF document text
- http://worthingtonpark101.com/userimages/15349608321.pdfIn PDF document text
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/69fc05fefbd660288b451b9bc78acb08/79276554619.pdfIn PDF document text
- http://bjsprt.com/uploadfile/file///2021052821512116.pdfIn PDF document text
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090b7e687481---gezavidivulibabevig.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/bb3d5edc659e1db13c4282bd3cdd9523/40725566434.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c08f4213fc---25580620032.pdfIn PDF document text
- http://griswoldremgmt.com/uploads/files/kixikemijepudenupe.pdfIn PDF document text
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/74pakh7nh1c16gfki92ekg2beq/69661008372.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb5910c797---midutinanozupizagadenesif.pdfIn PDF document text
- https://cr2tek.com/userfiles/Proj_Name//files/19765293172.pdfIn PDF document text
- http://sooam.com/files/fckeditor/file/313400071611cf8a3e4539.pdfIn PDF document text
- http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/rinexutoxaxupiranaz.pdfIn PDF document text
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/b1cbeab052523022cbc860468079ac4c/91647779005.pdfIn PDF document text
- https://inverpalmas.com/aym_image/files/15500274497.pdfIn PDF document text
- https://newtech-utm.pl/userfiles/file/87445210990.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/2f54d5f02251dfc1cfee7bc68a402255/85742780610.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16077d4bb6cef4---milikizaxitepakaboxaxabig.pdfIn PDF document text
- http://brooklynsmokeshops.com/admin/images/file/bosuxodisa.pdfIn PDF document text
- https://octvads.site/js/ckfinder/userfiles/files/dikomafijilojeluresipir.pdfIn PDF document text
- http://serramentisiciliano.it/userfiles/files/duwojalerokikuvir.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e509.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE509 | 10476 bytes |
SHA-256: 57299cfba6998ecaf114ee00d390a2910145e8818e1142280d1218a758258ba5 |
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font_01_sfnt_off0000fcfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001150e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1150E | 17716 bytes |
SHA-256: 78a6ca9255f2a0586c5228cb993ec7146786e42dfe8d71e3819ad0ed042354c9 |
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