MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristic analysis revealed that the document functions as a link farm, directing users to multiple external websites, many of which are hosted on compromised CMS platforms or disposable domains. The presence of numerous unknown URLs suggests a phishing or SEO poisoning campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee3c9f2f1ec---70216160361.pdf In PDF document text
- http://akkoryazilim.com/userfiles/file/wekuzixezekokobuturozine.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd51dd50b8---jepezagigasekagaso.pdfIn PDF document text
- http://tfh-filter.hu/_user/file/kixodujowevosiwirurokulis.pdfIn PDF document text
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/j1jc5k912eba6h0jn8hai5457i/37182338070.pdfIn PDF document text
- https://noblacklist.pro/web/img/podborky/files/votedajejurixinisonoluw.pdfIn PDF document text
- https://arerp.kr/data/file///nodunorarenapasosibew.pdfIn PDF document text
- http://newbiesites.com/userfiles/file/sofefenozipeb.pdfIn PDF document text
- http://www.moyekolodin.com/files/62497666687.pdfIn PDF document text
- https://ckmusicdesign.nluserfiles/file/22085892069.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/39321ba367384e17b3f39afbb6d7e6a4/68953508665.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/0g5fb1fsruaee1aukpqp5cpgc5/puwawijima.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf8448ba56---xosuduxakoma.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d66a7fbd4ec---bewirudibodoruzu.pdfIn PDF document text
- http://sonnenheizung.ch/fckeditor/editor/images/file/gufogodunopabovevagexe.pdfIn PDF document text
- https://tainandentist.com/uploads/files/202109021727344696.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/39450682183.pdfIn PDF document text
- http://crisismobile.com/ckfinder/userfiles/files/55362160045.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16072e124e243a---81883048552.pdfIn PDF document text
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/lk768knk6kf4s47svjbasp4045/90126486804.pdfIn PDF document text
- http://alexanderkanevskyartgallery.com/clientMedia/file/7452322163.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/42178848630.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611e4a1b2c8e4---modovifapakid.pdfIn PDF document text
- http://seasonsblinds.com/uploads/ckfinder/userfiles/files/20454195327.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog//file/nixuxi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=electricity+and+magnetism+physics+book+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://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_off0000de57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE57 | 11396 bytes |
SHA-256: 50544c30f25626b1ff9e85c7e032e309cd6f2b04b7a396006ffa504ac3be9507 |
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font_01_sfnt_off0000f88c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF88C | 17196 bytes |
SHA-256: 114fc81f46b569a91dd34d5f8c61e8b15ae2702c0aa71ef7a82690670ca25cce |
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font_02_sfnt_off00012533.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12533 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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