MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. ClamAV detected this as Pdf.Phishing.Trojan, and ML classification strongly supports maliciousness. The embedded URLs suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 https://laborke.ru/uplcv?utm_term=fgteev+playing+goozy PDF link annotation
- http://hengtaixin.com/HangShun/ckfinder/userfiles/files/18347820136.pdfIn PDF document text
- http://bakefruit.com/uploads/files/202109022223105727.pdfIn PDF document text
- http://hoanggiaphatstone.com/upload/files/74017137750.pdfIn PDF document text
- http://mengnuanua.com/app/webroot/files/files/57207574262.pdfIn PDF document text
- https://santa.sg/images/users/00000000/files/66718454136.pdfIn PDF document text
- http://gtlitalia.com/userfiles/files/jirifaw.pdfIn PDF document text
- http://essentielles-theater.de/UserFiles/File/rowiwumujinod.pdfIn PDF document text
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/91c13e7bd74ecd2165f7d96b3bf2df25/78473568510.pdfIn PDF document text
- http://westernstudioservice.com/admin/userfiles/file/77364614955.pdfIn PDF document text
- http://ahzycw.com/upload_fck/file/2021-9-12/20210912103711350519.pdfIn PDF document text
- http://ohmytour.kr/FileData/ckfinder/files/20210916_BC938764C0F67C87.pdfIn PDF document text
- http://ckud.handysociality.com/upload/files/84739685100.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b10b76f4a2---35917499455.pdfIn PDF document text
- http://www.santabriganti.org/admin/ckfinder/userfiles/files/33303085914.pdfIn PDF document text
- https://kaimano.it/file/74601039099.pdfIn PDF document text
- http://angelcabrera.com/FCKfiles/file/zuvimo.pdfIn PDF document text
- http://portalpr-b2b.es/img/user//file/_0326366001631844190.pdfIn PDF document text
- https://advance-pack.com/editor_upload/file/86310105725.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/62415765334.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161352e38b751f---30040564855.pdfIn PDF document text
- https://fuoriscena.eu/file/37779760936.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/91247936294.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bdc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDC3 | 10376 bytes |
SHA-256: 438ae8ca94e6893c40526d2cbb9cae9bcc9e215e07be7f08e4737dc08c7e425e |
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font_01_sfnt_off0000d563.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD563 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED70 | 1820 bytes |
SHA-256: ef4c56b83544acc0eae329b123dcb13384a4443b8ee25b6b011fcec9f25c534c |
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font_03_sfnt_off0000f5f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F6 | 21048 bytes |
SHA-256: 843218300e67326d40de6afdc032e0d0cd5973020fc177727354dc5108ec63ce |
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