MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and a link farm structure strongly suggests an attempt to lure users to external resources for exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://graphicart.ro/fckfiles/file/66183983213.pdf In PDF document text
- http://imcborivali.org/userfiles/file/18418056439.pdfIn PDF document text
- http://chinalabware.es/d/files/85296850237.pdfIn PDF document text
- https://ifbscalidad.eus/files/galeria/files/zuvidifegitudupalinajux.pdfIn PDF document text
- https://triptoboloyfoundation.org/editorsfiles/files/baxexaviborosux.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/rj4kqf9ce0q0cb3sljn1bebh36/rakivegavufuzijetotowot.pdfIn PDF document text
- http://dienlanhlongan.com/upload/files/garuwojivap.pdfIn PDF document text
- http://ipea.kr/userData/board/file/xufosupakiwazitilebomisu.pdfIn PDF document text
- https://samajsutra.com/userfiles/files/42214195554.pdfIn PDF document text
- https://yuanfuconstruction.com/ckfinder/upload/files/81084705485.pdfIn PDF document text
- http://kechengchem.com/upload/files/96873061.pdfIn PDF document text
- https://fibra-optica.ro/ckfinder/userfiles/files/kalat.pdfIn PDF document text
- https://consultingexpert.eu/fckeditor/userfiles/file/37484891969.pdfIn PDF document text
- https://y3stwk65l-mn9.com/contents/files/93530712347.pdfIn PDF document text
- http://zit-tech.com/userfiles/files/nomabegitabefexalifezopin.pdfIn PDF document text
- https://cicimanis.com/contents/files/26466655510.pdfIn PDF document text
- http://phuvuongcorp.com/luutru/files/33308479131.pdfIn PDF document text
- http://3mfa.com/images/editor/files/86904015541.pdfIn PDF document text
- https://thepainter.asia/upload/files/25439571898.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144a9f52dd57.pdfIn PDF document text
- http://slesnick.net/userfiles/files/8952902932.pdfIn PDF document text
- https://namkhoasaigon.vn/web/images/files/bigixeniwobegomo.pdfIn PDF document text
- http://hamlineparkplaza.com/assets/amund/ckfinder/userfiles/files/79323317544.pdfIn PDF document text
- http://sswjeans.com/files/41133350116.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/161467e6a5779c---29382399192.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=play+store+pro+androidPDF 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 |
|---|---|---|---|
font_00_sfnt_off0000d8eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8EB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f0fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FD | 17432 bytes |
SHA-256: cf3f87710ad3186bd2036b92010a0fd354ba8f0112c954091785a3e07b0a977f |
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font_02_sfnt_off00011e8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E8A | 10500 bytes |
SHA-256: 30355775dcfa5439786bb79eb84d1160bdb6712e891b9a0ee1a56ab8ef491e75 |
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