MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to compromised websites, many of which host other PDF files, suggesting a link farm designed to obscure the true malicious destination. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/1tuvs7g1gd87hr65jop7as5691/13631221823.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/l6j4942cnsn4doui912j9h8gh0/rogab.pdf
- http://chichen.asia/ckfinder/userfiles/files/79886951467.pdf
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/e2c4196af98427a03116b5d71d7caf47/48088516779.pdf
- http://yaeram.com/userData/board/file/12272064469.pdf
- http://ahxxzx.com/userfiles/202107/file/5939128713.pdf
- http://geredekombiservisi.com/userfiles/file/42195056705.pdf
- http://www.retorika-zidar.si/ckfinder/ckeditor_uploaded_files/files/wexabidorepebatagupobiz.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/814d1988be7a629ff9bed49f4f288ea2/tinunowenaramuzuf.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160d06e07d72e7---47209072102.pdf
- https://sportsht.com/userfiles/file/25922973394.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160abe3560195b---fokorapemavedikib.pdf
- http://royalrep.com/userfiles/files/28567370304.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094849e5eb83---86480783599.pdf
- http://csc020.com/userfiles/file/20210609041113_smke9u.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9da7e95210---8368239764.pdf
- http://unsersohn.ch/images/file/64253152085.pdf
- http://www.egavilanes.com/ckfinder/userfiles/files/sitalebarejakejawivufikab.pdf
- https://bookatowncar.com/userfiles/file/piwelepiluxogovatagi.pdf
- https://ecodiagnost.com/ckfinder/userfiles/files/978269668.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/aae4d4bab2d85bebc643d8bd37d6c3e7/nitowavibirovobu.pdf
- https://juhaszautovill.hu/userfiles/file/fujonikudeze.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a60868181---xipisopid.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f00404ee99.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=comportamiento+humano+en+el+trabajo+13a+ed+pdf+gratis
- 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_off00013556.binc8d7e89ce4921dfbee9617348b81bcf43868ff585c922a5eb74db023f71c6eb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13556 | 11568 bytes |
font_01_sfnt_off00015026.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15026 | 16792 bytes |
font_02_sfnt_off00016838.binb8a2189b0d602143a83d399d04e69c5ca8f22a5157d737a909b031c4685b0643 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16838 | 19856 bytes |
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