MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious content or phishing sites. The document body is heavily obfuscated and contains no readable text, preventing a more detailed analysis of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://zafirkort.com/uploads/files/50956582180.pdf In PDF document text
- https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c53ff6906b---norogixiposusokip.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/da9e848f85e1b5ede273bfffaa477355/55579431244.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095ffd4c4c42---xuvolo.pdfIn PDF document text
- http://xn--or3bi2da319p.com/upload/fckeditor/file/mujaxozuwowiz.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/22542520450.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c4890b3ba---4605519624.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5a3795e0c6---3804068374.pdfIn PDF document text
- http://esistore.be/userfiles/file/73960368866.pdfIn PDF document text
- https://travelsafeway.com/userfiles/file/lalaxubamewe.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/dfcno5msmjtm8iglta8n70jpht/vaxunanosovafaw.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/f16djel47la2rjg8c8o3q8u558/samadotod.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/c5a8695518a229905cb1e76d990d6b1a/zolidoxodukewejiwu.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e941df1aa---jugulamelenuwekuwamiz.pdfIn PDF document text
- https://netiko.ge/img/Data/file/72202435460.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079369dadd74---43851323517.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1611554e5bcae0---motaserimefawofe.pdfIn PDF document text
- http://purofirstli.com/userfiles/files/tilulifubajatuvuloxoz.pdfIn PDF document text
- https://ratco-hardware.com/Ups/files/vininesawatatapufaravaxun.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/vos0vjn2prhnoj913tdetlu7h3/35067982666.pdfIn PDF document text
- http://tourhong.com/FileData/ckfinder/files/20210623_85E98019BCE6FC3E.pdfIn PDF document text
- http://enotecagaribaldi.it/userfiles/files/bijitetalimopumiredat.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608759fea740f---vakumis.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160996e4066816---wudiwebatofub.pdfIn PDF document text
- http://atomiccm.com/userfiles/files/49024319362.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=facomatosis+pigmento+vasculares+pdfPDF link annotation
- 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_off0000e33f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE33F | 21192 bytes |
SHA-256: d03621c44443c4313cafc95bde29b77e89d21a79a97c211106bd0f172f915bb8 |
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font_01_sfnt_off00011860.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11860 | 11108 bytes |
SHA-256: 95a345f6e1b2d8e78420f5ae74d718cd2cfaacc680d4905250eacdc85569b850 |
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font_02_sfnt_off0001321b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1321B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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