MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The embedded URLs and the overall structure suggest a phishing or malware distribution campaign, likely initiated via spearphishing attachment.
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://valserve.in/web/k/main_admin/ckfinder/userfiles/files/33804439372.pdf In PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/89fb11e544aee4cca63cba30bc60d2fc/30960945372.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2cff7fb3e---doguju.pdfIn PDF document text
- http://bakoca.hu/files/file/zoforilelisipope.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e33f78242---3100447414.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/a5b8d5c54ea50dc363eac6ee6a4d625d/54256193897.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae72bfe5a2b---9869837574.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5d3a3d0c5---bidira.pdfIn PDF document text
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160923ae8f1e54---93975771370.pdfIn PDF document text
- http://agrobud.net/uploaded/file/penomizafefe.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/de2fffa61c06e09b7b5a5dc38aa29ce3/33626927944.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b613c64b9---4555579916.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a77330bb662---73495046486.pdfIn PDF document text
- http://thedewakohchang.com/image/upload/File/8881047721.pdfIn PDF document text
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbf6c82800---wemorejanego.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/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=k53+road+signs+and+rules+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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d619.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD619 | 5468 bytes |
SHA-256: 1663f4dface7b18b0b3d6d099dc9fe5d34f9cfa3a67a043b03c6f61dd72b1fcf |
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font_01_sfnt_off0000e8c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8C8 | 11284 bytes |
SHA-256: 1654fef234180a3b60acad5135ab4b31571432b149ec64eaf8977cf1a6281847 |
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