MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm designed to distribute traffic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be8d53e498b---49759551247.pdf In PDF document text
- http://ebslang.net/_UploadFile/Images/file/tezureka.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16086079280d8e---49831939971.pdfIn PDF document text
- http://eska-lift.ru/userfiles/file/5508824671.pdfIn PDF document text
- http://lhsclassof68.com/clients/73441/File/21996215136.pdfIn PDF document text
- http://balassalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/96195558587.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d5aa4b2f0c5---8378477847.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/7mi7ms1o75n0qofvk641a3d3u1/kagedifazowikap.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/tk9gmvake1hrudukuuffq3cd65/85919887173.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/aed92ec901e5276b50145371b4c54f69/35340296912.pdfIn PDF document text
- https://bookatowncar.com/userfiles/file/xalarobivos.pdfIn PDF document text
- http://jnnycc.org/userfiles/file/fonorogemivafa.pdfIn PDF document text
- http://stark-tools.ru/images/uploaded/zasuxebimefujasolenito.pdfIn PDF document text
- http://tachikawa-derma.biz/ckfinder/userfiles/files/83625545047.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/favogu.pdfIn PDF document text
- http://andrelandberg.com/userfiles/file/tuzotumadepu.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/h89pgv3mvq3ousg9j0r9lq6bd4/2847912424.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a4fb7a4099b---28907461886.pdfIn PDF document text
- https://www.douggoodkin.com/admin/ckfinder/userfiles/files/2576771537.pdfIn PDF document text
- https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/8037f42f4bf94ee5f70763678cbafb56/58030080763.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c29915a71df---43758674226.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16081a84d9a8a2---48350706646.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/1a37425a1ce1dbdd69ab7ded71bf391c/79412134240.pdfIn PDF document text
- http://ahlhy.com/uploads/file/292129556326.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=social+media+effect+on+young+people+essayPDF 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_off0000f596.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF596 | 11152 bytes |
SHA-256: f82b5bf265123cde612981b10b222c922e62c580342340e8cb35b45941babdbe |
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font_01_sfnt_off00010f70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F70 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012782.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12782 | 16456 bytes |
SHA-256: 33474cc004ec7fac8a197644edc427982502727924bd4ecb5e4bc35351143ceb |
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