MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS upload directories, suggesting a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the PDF is used to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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 https://ketchas.ru/uplcv?utm_term=difference+between+primary+and+secondary+teaching
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/58irblgujvgkm05s0eui8ddtv2/medito.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160809c7e97575---malazapedokijasisuro.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/6c7b62e7ec9d1a9f0ea7841a4500dd65/28667738855.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16090450f21531---17469985838.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16077ca1faa57f---86024722244.pdf
- http://ajtoablakcentrum.com/_user/file/8589277012.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c70b35ecb3b---80115467235.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abf5609111c---44339920202.pdf
- https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/b36c59a56392ee34a05bb2f18b3954c5/wonanudorovetep.pdf
- https://bawaniint.com/ckfinder/userfiles/files/98999017114.pdf
- https://bangprice.com/bangprice.com/beta/cms_image/file/62412106446.pdf
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/7d3d1dda3ce1241497b574f713d15afc/vazenubasofikajolaxem.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/b74281d44388e4abf74e5b4fb99bc1b6/74707890863.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/nkrbcc58qra8rut186a38kkt7a/jivatuvojosireb.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160792918eea34---17389180651.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/hkeottbek7fctcudhri21mq2qi/sosugatanenisawo.pdf
- http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075930aeb428---puwonanaribuzuxosad.pdf
- https://biocoils.com/img/file/23995126388.pdf
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b82f0d1dcbb---515470246.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607e63938cdc1---68365556915.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c384fb37d41---84395188538.pdf
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/6ruclnkebbirm8m5mmlaqjtgf4/51731918140.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/d0e4431155ec08d193d873f33adc9ae5/ramujufometu.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/212f26b6d16cc6aed7235ed30e7cdb40/jipax.pdf
- 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_off0000f7cc.bina98e703010f918a1cce8c09b67e8290286db50a725b9ff8055ef5151669dd6ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CC | 11360 bytes |
font_01_sfnt_off0001120f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1120F | 16792 bytes |
font_02_sfnt_off00012a21.bin2b898516c4e4d182d31b6895699e6ea43bce29398581d47ea6aa869e47c26c29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A21 | 16600 bytes |
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