MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically a phishing or trojan distribution campaign. Although no scripts were directly extracted, the PDF structure and URL heuristics are sufficient to infer a phishing and potential malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8e9f8c723f92539e24d91a0552231458/55345247486.pdf In PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b74c1b52663---jurereritefabes.pdfIn PDF document text
- https://topupdana.com/contents//files/gulolu.pdfIn PDF document text
- http://allnatureint.com/userfiles/file/60328531091.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6982ae8a9---3701655838.pdfIn PDF document text
- http://shadesvalleymounties1969.com/clients/868959/File/2023338748.pdfIn PDF document text
- http://nhasachnguyenvancu.com/Images_upload/files/71824410285.pdfIn PDF document text
- http://dentherapia.hu/files/file/59090871723.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/8cba4cd92ee80361f1ccfa000b8442a4/990380682.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/4c29e9c13d19f2660997caa0a0cb182d/sivotajuzutetibuse.pdfIn PDF document text
- https://hanurichurch.org/ckfinder/userfiles/files/rupowofakumoli.pdfIn PDF document text
- http://minhvuongthuphap.com/upload/ck/files/1674171325.pdfIn PDF document text
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a331e28bcec---lakafa.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16099f54a5befc---70883299703.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160811d663caa0---koseludowaze.pdfIn PDF document text
- http://gourmethousemacau.com/UploadFilesfile/%5C/94393457503.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/YTWXjIUwRh0/uplcv?utm_term=hypixel+server+downloadPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001070e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1070E | 5520 bytes |
SHA-256: 52b4f2cc3c03c565644bb8e2bd8c09b5ea34731858a26f96e610a6e1ef133eea |
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font_01_sfnt_off00011a30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A30 | 5236 bytes |
SHA-256: d75d20af9f0ef4d3f77ec689c8dd3040d9df470ed21d636ae19f8617552ac99e |
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font_02_sfnt_off00012c27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C27 | 11872 bytes |
SHA-256: d8cd793b67f5baf053abc1f4092f5feb9f154219d9ebcf01cb44d52056478a33 |
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