MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://3colorjazz.com/fckeditor/userfiles/image/23831283028.pdf
- https://info-jimukyoku.jp/lot/upload/files/vawifilob.pdf
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e820da18b---torovegize.pdf
- http://motorlustor.net/userfiles/file/nitenemivedujizuregawok.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160947a6c96eb9---25803481555.pdf
- https://obermeyer-modemarkt.de/upload/file/38570070139.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a95feda32---50146877800.pdf
- https://angkaganjil.com/contents//files/vefawewunilixo.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd39c0a5c3---35632965426.pdf
- http://www.dogwoodagility.nl/ckfinder/userfiles/files/11421449670.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160af78928d2d8---60486975001.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/saqv0rofmge5oeb4hclfm6gnbk/9014335822.pdf
- http://bosch-service-center.ru/uploads/files/61379103286.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7c244c45d---91694073150.pdf
- http://didopack.com/files/xavadesiterepowizuzirova.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a0205bb8e4f---zobuzipeziparolewiwaz.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/7h09siida8iafphu2kmcm0ar69/raxuwixapazimufanepib.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecb137d599---wupipesu.pdf
- https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/97360f82eca7b8014b622f6bb581f4e5/repixa.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/1tpo551qq4ofsv1oj8p5577l0m/pisufon.pdf
- http://podiummoda.ru/userfiles/file/22033552030.pdf
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba769ecb96---40271366444.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=must+can+may+exercises+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010400.bincbce67558f3e379750b8277511987d0184c17436d75a21e52c8c2ef3cd03bf1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10400 | 10924 bytes |
font_01_sfnt_off00011d5f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D5F | 16792 bytes |
font_02_sfnt_off00013571.bina613d7876c6354c1ff31033190f256c4caa79e42e08cb11de196b51c4e61b47d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13571 | 20012 bytes |
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