MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress upload directories. These links are likely designed to redirect users to malicious or phishing content, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140edfb17b41---22682646718.pdf In PDF document text
- https://villadelauca.com/userfiles/file/57739325133.pdfIn PDF document text
- http://www.espace-hotelier.com/ckfinder/userfiles/files/33775103455.pdfIn PDF document text
- http://creatinglifeoptions.com/userfiles/files/jeropekiloxedokitiwugotol.pdfIn PDF document text
- https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/juvekawexesulazexar.pdfIn PDF document text
- http://www.sun-green.eu/ckfinder/userfiles/files/94224551104.pdfIn PDF document text
- https://supermagnum-bg.com/ckfinder/userfiles/files/vivawewosubulitivuw.pdfIn PDF document text
- http://zekidilektekstil.com/images_upload/files/gijafevakubu.pdfIn PDF document text
- http://orbitsecurity.qa/pro_mvp_tech/uploads/file/77619493778.pdfIn PDF document text
- http://kozhencherrymtc.org/userfiles/file/pukow.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/9f5c1f8d59191c4694f62bd3f4b1aacd/14297213373.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161417fc7e86a5---nonanikobozaxurelevemul.pdfIn PDF document text
- http://erpos.sk/data/files/wezekiminu.pdfIn PDF document text
- http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/18582914138.pdfIn PDF document text
- https://qpshouse.com/upload/image/file/89859806749.pdfIn PDF document text
- https://globalmediaminds.com/uploads/files/90197215840.pdfIn PDF document text
- http://canadianrockies.ca/files/file/33002058763.pdfIn PDF document text
- http://balone.net/_upload/file///zejopevagokebafu.pdfIn PDF document text
- https://0924055971.com/uploads/files/202109160212024407.pdfIn PDF document text
- http://jia-longsofa.com/uploadpic/jialong151126/files/202109091318143111.pdfIn PDF document text
- http://gameometria.com/assets/ckfinder/core/connector/php/uploads/files/67503065599.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+permanently+delete+pictures+from+android+phonePDF 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 |
|---|---|---|---|
stream_003_off0000f47c.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xF47C | 11176 bytes |
SHA-256: 75a9cd84ca018fd8fd43913deed827ad9f6a881a017d3d5086587c44076c29da |
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font_00_sfnt_off0000c67e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC67E | 17804 bytes |
SHA-256: a946abcc58e041c1dc653c1ccde147818f9840f3f995c977459c989f3a01ec4f |
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font_02_sfnt_off00010e72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E72 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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