MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file functions as a link farm, containing numerous URLs that point to compromised WordPress sites, likely serving as a distribution point for further malicious content or phishing attempts. The presence of multiple links on disposable hosting and compromised CMS uploads suggests a tactic to evade detection and leverage existing infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec8514de3f---1695778974.pdf In PDF document text
- http://sklepjola.pl/userfiles/file/bevuwabetonuxezu.pdfIn PDF document text
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/a7d3b4e6b81f1fa8e552a79b662a0e5b/34257737663.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b329dfddf54---48508695075.pdfIn PDF document text
- http://hnysft.com/d/files/47235989028.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/fbffbe7be6050e2a70ad4bf2f27a6ec2/zufurosixokus.pdfIn PDF document text
- https://die-elke.de/cms/elke_page_files/file/46334235663.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160753a82a0038---68056285551.pdfIn PDF document text
- https://ildiko-szepsegszalon.hu/userfiles/file/salomezutofawegobi.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbd18c808c---fomilozev.pdfIn PDF document text
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/80hlo36g6ai4hvnb08bu1nptc5/19242918920.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/l5cduc0sjie4jbo2pdtlg3hl1s/xusoxawipujowifewomimetil.pdfIn PDF document text
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/5e216f7006abf2e1d324e6055b46d9b7/13824537575.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/f6207ba237f9c8259b94f11d5c7751f9/21834147136.pdfIn PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/4dd5ca6165941f098950b8a3d8b01375/33062527144.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=foreign+language+learning+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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA95 | 4984 bytes |
SHA-256: 048924505701ed671fcb3918a9fe671e9dbb225d7ea0cc73a3f5074eae8c76bb |
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font_01_sfnt_off00010b9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B9E | 11140 bytes |
SHA-256: 4d2324b7c5d0e44d593bb1f68cc7bd3940cc72b64b494f2d8ed083553bfd7173 |
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