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 ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The PDF structure and embedded URIs strongly indicate an attempt to deliver a secondary payload or phish credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://oniceh.ru/uplcv?utm_term=best+stretching+exercises+to+increase+height+pdf PDF link annotation
- https://xaydungdonggia.com/app/webroot/files/images/pages/files/gumozevajofiti.pdfIn PDF document text
- http://webinaris.training/ckfinder/userfiles/publics/files/21450632807.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/30287ee65248cbc6611ddfce709cd616/werexosikotuzopes.pdfIn PDF document text
- https://tch.lu/files/files/88948493448.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144451d8bc8f---foraxofaleso.pdfIn PDF document text
- http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/zizovoru.pdfIn PDF document text
- http://yizhu580.com/ckfinder/userfiles/files/wuvogos.pdfIn PDF document text
- http://jeykrishnaclub.com/images/file/45541189569.pdfIn PDF document text
- http://soles2walk.cz/data/file/logivaka.pdfIn PDF document text
- http://musicandyouapp.com/webupload/editorimg/files/tizafazomegu.pdfIn PDF document text
- http://www.huntsvillepr.com/files/files/fekosuzumurazarus.pdfIn PDF document text
- http://tatishev.ru/admin/ckfinder/userfiles/files/gowijaruguzetesibolu.pdfIn PDF document text
- http://banquat.com/userfiles/files/gixetumozokidamiwudetetox.pdfIn PDF document text
- http://bajcsidavidfoto.com/_user/file/35791170410.pdfIn PDF document text
- http://tykhchem.com/upload/files/wemijozuwebudelowumafi.pdfIn PDF document text
- https://ispartaprefabrik.com/ckfinder/upload/files/34571497533.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161467f0e3d7e4---45729892507.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16145ab318bc59---86970454335.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1614de875360dc---38735864969.pdfIn PDF document text
- https://jechrina.gr/FCKeditor/userimages/file/92265732883.pdfIn PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1615615f120149---41147454923.pdfIn PDF document text
- http://sententtech.com/file_media/file_image/file/48003343353.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140d14317106---98938536077.pdfIn 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://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_off0000b3e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3E1 | 11008 bytes |
SHA-256: 64cc9968edf3093e5771d258399e4b6a5d50194087afb9212d8e93099900fbf5 |
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font_01_sfnt_off0000cd46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD46 | 16980 bytes |
SHA-256: 8052a03ec45cf843396fcf6fb117d36f6f4398422aa5d01117e0b5c635184368 |
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font_02_sfnt_off0000f908.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF908 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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