MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to compromised websites, many of which are hosting additional PDF files. This behavior is indicative of a link farm designed to distribute malicious content or lead users to phishing sites. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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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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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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 http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16081d457de27c---vamalumiliturumuxo.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b3be44b827e---28509965894.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4ad521d36---zosifezisatokinubomo.pdf
- https://cafemocion.com/userfiles/file/manivapatoxidak.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082428000bf8---tivebazojipisutikirosemew.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160737399f01f8---xozogep.pdf
- https://kuepancong.com/contents//files/zununijozu.pdf
- http://poiskvod.ru/images/file/51651513012.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/e2e3eb49acc170ac9c9ce5be1b475d17/60602911409.pdf
- http://vitajeans.com/ckfinder/userfiles/files/28606444201.pdf
- https://africanresearchcenter.com/userfiles/file/lirosawesanigajuxunozupot.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608f175b7c8d4---48969323654.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d42f0199d0---92535501847.pdf
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/053cb12e9cad2696e27cb6b2069182a0/24373908658.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609a70a10b852---dirumipinosujemiker.pdf
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e3809ceb21---492905751.pdf
- https://maggies-handmade.com/UserFiles/files/jolode.pdf
- http://liburnia.pl/userfiles/file/16180974967.pdf
- https://denizlihorozu.com/resimler/files/selifojutokanol.pdf
- http://project-lovcen.me/userfiles/file/69995791247.pdf
- http://cp-1.ru/userfiles/files/23204533982.pdf
- https://zionapostolicministries.org/uploads/file/15541030247.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160918fde6faa1---mototud.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad0f5ea38e4---8318005923.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608150f9a8554---22339134838.pdf
- https://boumqueur-edition.com/upload/fckeditor/file/46527335929.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=manual+interview+questions+for+freshers
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fded.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDED | 16792 bytes |
font_01_sfnt_off000115ff.bin20dbef91036432b146e26e00b3d07ac8865b9b9dec53a5fa6934055d99599963 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115FF | 16572 bytes |
font_02_sfnt_off00014128.bin050909a3ace0ea520627ff679ee4d1bd622cd04fd363cd5e3ffa8938473514d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14128 | 10704 bytes |
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