MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics indicate the PDF contains a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution lure. The document body is unreadable, but the presence of numerous unknown URLs strongly supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://assignmentmart.com/ckfinder/userfiles/files/tixodebepubijujomexam.pdf In PDF document text
- http://dolphinkorea.com/files/files/vitakedujij.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c62a259bab---rirojakutemofoxo.pdfIn PDF document text
- http://gialtour.it/themes/userfiles//files/xenofo.pdfIn PDF document text
- https://motoralbini.it/files/file/gorofuropepek.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/161032503c593d---didigesafalebofipuboke.pdfIn PDF document text
- http://akvari-um.ru/userfiles/file/14643485851.pdfIn PDF document text
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/73c8543fe67e527ff3b5edab0e28d7a8/87505062997.pdfIn PDF document text
- http://pro-group.ru/userfiles/file/1651282849.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/qqde1lnmi5q0sdp8kh5r9cgh1g/vezosodunudekesum.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c41a5f5cc7c---gowufopud.pdfIn PDF document text
- https://knurussian.kr/DATA/upload/files/202108101801228988.pdfIn PDF document text
- https://goldenlinejsc.com/userfiles/file/67547318441.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/sorarik.pdfIn PDF document text
- https://divanich96.ru/admin/ckfinder/userfiles/files/92020921457.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/be929db48f0629573844fe0b22880b92/watevedimorenigepubepaz.pdfIn PDF document text
- https://helices-evra.com/userfiles/file/91438255889.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/61613273625.pdfIn PDF document text
- http://zezoalza.com/ckupload/files/nubufagujawomatuxuxujifo.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606fcbdab0ae9---wibisago.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e665504fb2---pafobajutejiw.pdfIn PDF document text
- http://homokkepek.hu/editor_up/jofig.pdfIn PDF document text
- https://www.bramfordgc.co.uk/ckfinder/userfiles/files/47832331425.pdfIn PDF document text
- http://angelescare.com/userfiles/file/miremoger.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5e8d33037---8652692918.pdfIn PDF document text
- http://arci-mp.fr/admin/File/28626746674.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612385f342e43---jofewanulijaf.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=ieee+standard+for+ethernet+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://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_off0000f015.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF015 | 10408 bytes |
SHA-256: 9f852233e72e179cb3a17f7bbbfa91b304080a0a75a3b05fa0d994068ac2f212 |
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font_01_sfnt_off00010798.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10798 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011faa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FAA | 17308 bytes |
SHA-256: 916d9026812ff6b65355b8f0b965ddeaf3270b00dac8cbb705a6d99e6d978fb6 |
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