MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://krisoc.ru/uplcv?utm_term=culture+and+everyday+life+pdf PDF link annotation
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac648e4e9ca---25315128375.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/nidopodesuwemolilepejezuf.pdfIn PDF document text
- http://shreyaghoshal.com/konadnew/userfiles/file/13626039745.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/56961361785.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/nkhp44li957sg9q2llebb6ice0/lasowakoramo.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/ed0fd07eb574bd6243f3dbbb898759c6/27469657136.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/fejanufubokikolozekogon.pdfIn PDF document text
- https://aartipalette.com/userfiles/file/85924412636.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/66e3e5992713fb259c9679af2386d849/redovimi.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/61974214771.pdfIn PDF document text
- http://dalboncostruzioni.it/userfiles/files/zudapimuf.pdfIn PDF document text
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/c460d935c86d65d37bd4c104c476730e/loteja.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/hqa5chbd75iqkj67h4shd7p4pk/bigudamugoloxeveka.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb18c7ad2a---63439775293.pdfIn PDF document text
- http://casier-a-bouteilles.fr/file/xebegajojapug.pdfIn PDF document text
- http://emeraldcovepartners.com/_data/images/file/warubuwawasudujinuxepedip.pdfIn PDF document text
- https://landi-bg.com/images/file/42243488664.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/11vrqvj22hpbaa5f14qjee6qh3/xujezixumemegogo.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb78283513---wukefiburero.pdfIn PDF document text
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/b709e3ffaf3c0ebbe3795108330a5499/josagewapafibobiwagugokef.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/afde792f0d649da072773da875ecd94e/24686400780.pdfIn PDF document text
- http://klimagra.pl/images/wysiwyg_img/file/77713369393.pdfIn PDF document text
- https://sabagdasarov.ru/upload/file/46318576479.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/283d9b5c73aeac58138c4a35f2c0fadb/74003170234.pdfIn PDF document text
- 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_off0000c1b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1B8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d9ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CA | 16004 bytes |
SHA-256: 2c777462c673ff585684ea8560e18bcf09590e38d082951c5e7b5e99fa6fde89 |
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font_02_sfnt_off00010250.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10250 | 10516 bytes |
SHA-256: 153bfb0baaef11d2d6384adfde30982575bf81a831892c59f9798f97a1c7ce91 |
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