MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal that the PDF contains a link farm pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The document body is heavily obfuscated and unreadable, further supporting a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/dd28d834dfdabe0bdfb6df9f4ce486aa/1127368649.pdf In PDF document text
- https://b2cexpressdemo.com/userfiles/file/dugekoxixalereposap.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608034b8df14f---katalovesajudugobifurenox.pdfIn PDF document text
- https://alexandrapanayotou.com/web/images/static/file/73314062505.pdfIn PDF document text
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091526bd2efe---moralatekefaboke.pdfIn PDF document text
- https://festival.bg/fckeditorfiles/file/28531901051.pdfIn PDF document text
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/3es5865u2kbscok8il4sdufo8k/88758237008.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-6-8/20210608181334862275.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160b5babf09ec7---77201620151.pdfIn PDF document text
- http://apsons.eu/files/file/34346066747.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/v42oafifs73tgldcsdru5n9dq7/nagokeguwexenogozebe.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/131d5ffb065da7a6a5cd1223c21636b6/47944378003.pdfIn PDF document text
- https://stratasphere.online/userfiles/file/rakut.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160aa07d6d7142---vaweki.pdfIn PDF document text
- http://tort-art.ru/userfiles/file/lubejewelixelikorub.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=msds+naftalena+bahasa+indonesiaPDF 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://scripts.sil.org/OFLIn 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_off0000d24f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD24F | 5044 bytes |
SHA-256: 18d9597d3c9e5c3efce02c4058abab8bf6e72c86e95115f87d6a9f72707ea1cc |
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font_01_sfnt_off0000e37d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE37D | 10792 bytes |
SHA-256: eadd94ace841bc4c48b8c2b44b273e4798b96127007b1df374687a04e75c804f |
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font_02_sfnt_off00010876.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10876 | 16144 bytes |
SHA-256: 18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b |
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