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. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories, suggesting an attempt to host and distribute malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the use of disposable hosting for SEO-related link farming, likely to lure unsuspecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/9035635d80638750f91ac9d9f3dbf8fe/81411943128.pdf In PDF document text
- http://cukiernia-waltar.pl/qcms/userfiles/file/tubupowaxidodegij.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/87552068308.pdfIn PDF document text
- http://burattinojatek.hu/userfiles/file/linutidazabuxutaziv.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1e1f73e0a---5180915259.pdfIn PDF document text
- http://k-sta.kr/FileData/ckfinder/files/20210720_1DADB2CBEA962515.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160920743a0965---febim.pdfIn PDF document text
- http://etpatatietpatata.com/userfiles/files/ruzixodabizeraxa.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/eumgsfj66tj1bv3msvfrsn4t27/13484733264.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b37d61972cf---78321058009.pdfIn PDF document text
- http://studiosiciliani.eu/userfiles/files/94345706695.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160da8bc1c9f8a---59127021498.pdfIn PDF document text
- https://nutstudio.it/userfiles/file/tusizarewiluridaput.pdfIn PDF document text
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d481a50b13---91515806069.pdfIn PDF document text
- https://xanbiente.de/userfiles/file/54598730416.pdfIn PDF document text
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f866e8402c---8030592846.pdfIn PDF document text
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/5a7ca4ab3ac494e6e5055ac10194467e/fitunawokulugigidaguf.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e91a5d69c---6222181251.pdfIn PDF document text
- http://ms-beauty.com/ckfinder/userfiles/files/seradafasividazav.pdfIn PDF document text
- https://marigabung.com/contents//files/najibepo.pdfIn PDF document text
- http://kwiatmetal.pl/userfiles/file/10498859187.pdfIn PDF document text
- https://rkdestate.com/userfiles/file/25147019922.pdfIn PDF document text
- https://ises.ca/phpsites/vertical_living/uploads/file/kozadafigofix.pdfIn PDF document text
- https://stvorki.ru/files/file/59873674949.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/fusum.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=dibujos+a+lapiz+faciles+y+bonitos+de+animalesPDF 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_off0000ec2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10441 | 11224 bytes |
SHA-256: 4a0d26b3a7c8e2b7e6c74f5858e3a2f5fb1e26fbd71d9e2ff1ba6a8ab06ed21f |
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font_02_sfnt_off00011e5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E5C | 18988 bytes |
SHA-256: dc460fe7fd38ea844181d10966aa1f62f1f0800817ece190c87799b2b02569e4 |
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