MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous URLs, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely involving the exploitation of PDF vulnerabilities to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://urbanconstructions.org/images/uploadedimages/file/kakebuvorogivera.pdf
- http://raylutickenterprises.com/userfiles/files/23095809619.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/91e49d20dc19d1cd006ca535fc75523c/lipiberobegavinulur.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f74e615add---latamojopusijaxejipujerab.pdf
- https://www.sensiblemachines.com/ckfinder/core/connector/php/files/gikemi.pdf
- https://instalacje-elektryczne.net/ckfinder/userfiles/files/52451994125.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607046d04fbe8---7668915922.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef34715fb4---11577779315.pdf
- http://brenno-tojestto.pl/userfiles/file/fiselevanopafatikaze.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1faeda7921---27260866270.pdf
- http://agcslohian.com/userfiles/file/rudisakelo.pdf
- https://aartipalette.com/userfiles/file/39452564196.pdf
- http://sva-jeanroze.com/xmedia/file/91114847426.pdf
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/8d3d0b0ebvqfctccacc1h3k9n0/gitubaxewefikadalikuxil.pdf
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bd1a032cb---jogajomeseruxuveso.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/5b7ca635431767ed399d1b8e07f32415/24274490109.pdf
- http://bacviettech.vn/userfiles/file/tisasewewikezapateliregis.pdf
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/64acec0e2c23c25707cb14a3bd96f2e1/lisogib.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607066181ff28---wuragedolurunugog.pdf
- http://bukhatirhomes.com/userfiles/file/kometolezex.pdf
- https://alice-immo.com/userfiles/file/novelu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=si+unit+of+work
- 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_off00010156.bin6bef9d9101b0fd734cbe2eb53076ed588f3161611d2e55748196b3266420ed4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10156 | 10052 bytes |
font_01_sfnt_off000117e2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117E2 | 16792 bytes |
font_02_sfnt_off00012ff4.bin5d81e10cda00dd0936733d7748a211fedf06ea52270e92abefd8c13ed1cb26dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FF4 | 18260 bytes |
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