MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links pointing to compromised WordPress sites, suggesting it functions as a link farm. These links likely lead to phishing pages or further malware downloads, aligning with a spearphishing attachment attack pattern.
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://medvor.ru/uplcv?utm_term=enfermedades+sistema+endocrino+causas+s%25C3%25ADntomas+tratamiento PDF link annotation
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aac68e3a8da---gusetotunolajo.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16075fe38ec853---44455264722.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/7fcdcb6787d43c5527620c8e5971fe1f/fozegakutulufaj.pdfIn PDF document text
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/5b8mmt558sokk4l8mm3lq2f4r6/mumolomuzofoxoki.pdfIn PDF document text
- https://arerp.kr/data/file/%5C/76031076034.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/b0lajotl9f8o2tlnmljb4o7d5n/9309167292.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/13cf17841df9a9de362fe8ed71bcc881/50787058639.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb8e2acbfb---73929561463.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/jododudajexebubanaxudixer.pdfIn PDF document text
- https://alutat.com/data/file/59735343255.pdfIn PDF document text
- https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/id520sfapqj5bd00rjgbk907jj/jekubod.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf67062701---mutoved.pdfIn PDF document text
- http://murielbellhomes.com/userfiles/files/48953903118.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/8379625181.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/pptt235bb3omkkvsn196ll44jh/20375672674.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160731f9ad3339---gomovujijogoki.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/i5ig3r4oligcebaom1ph0qh9q3/bazizujokewepu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://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_off0000f44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44B | 5148 bytes |
SHA-256: bcfb49b27d1fad41dc5135797a0d94d4476add8c93cfa0e0599d227089ea873e |
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font_01_sfnt_off000105b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B9 | 12184 bytes |
SHA-256: c59c57aebf05d33a5708cf1e415c7c4a7a4ad2835f76b5ddcf11c44445ec5f78 |
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