MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to potentially compromised websites or link farms, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://medvor.ru/uplcv?utm_term=app+to+mirror+phone+to+laptop
- https://romalasergroup.com/userfiles/files/kukor.pdf
- http://dymenahealthcare.com/upload/fckeditor/file/sirubadoremojorozi.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1614919f3e98e5---91491186880.pdf
- http://cpk.by/ckfinder/userfiles/files/vazajozoxexiwetazafi.pdf
- http://fotofolliasanlazzaro.it/userfiles/files/78754205647.pdf
- https://cissud.eu/uploads/ck_editor/files/94924401824.pdf
- http://manuale.aziendasulweb.it/userfiles/files/498246507.pdf
- https://alrukn.co/userfiles/files/bonub.pdf
- http://architettoangeli.it/userfiles/files/5710427082.pdf
- http://inannamsao.com/uploads/files/22696844809.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/e2908aac268c66c8bdd2262d00ea8590/20205700252.pdf
- http://cungcapbaoduongcuanhatban.com/upload/files/56148841006.pdf
- http://casier-a-bouteilles.com/file/53329908290.pdf
- https://umartravel.com/files/64157906605.pdf
- https://drishtinetcom.in/FCKeditor/file/64569822217.pdf
- http://jmk.kr/ckfinder/userfiles/files/86300002576.pdf
- https://deltarents.com/upload/ckfinder/files/buvonugudefobunepukidapev.pdf
- http://b40555.handyfriendship.com/upload/files/76741419102.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/5531b668b6e03ba4faa8560287190cd8/85647954144.pdf
- http://rcp-ranstadt.us/files/sesuzazixazetamifabi.pdf
- http://tachikawa-derma.biz/ckfinder/userfiles/files/12725574913.pdf
- http://dycelife.com/userfiles/file/tubiwoselebulosuxaferase.pdf
- http://www.evisiontiendaonline.com/ckfinder/userfiles/files/vobibugelelotak.pdf
- http://jagdrevier.hu/upload/images/file/35285137033.pdf
- https://gilbertems.com/videos/file/miritugefokurizawopesa.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_off0000da78.binfa8709758ba168830b50c75db1072ccf77a24493303e69dd56b6c76aabf639cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA78 | 17220 bytes |
font_01_sfnt_off00010734.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10734 | 16792 bytes |
font_02_sfnt_off00011f4b.bin29a8b1036932e1f0a254d4f02d7cfa95f989493b867d6067bd798fd171f70b67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F4B | 10332 bytes |
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