MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to compromised WordPress sites hosting further PDF files. The presence of external URIs and the structure suggest a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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=keeping+promises+to+yourself
- https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ca91660d2---lowizejipezikuzikeburajuf.pdf
- http://edgecs.net/documents/74218690867.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a68e426e838---13936580788.pdf
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/i0h16i5vhndfqsked4ft30kq26/5890581468.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/c65e2e04e54040ac91682193af276eb2/43687248163.pdf
- https://2acontractor.it/images/file/situzije.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd32a894a4---pimasekugo.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/5830f05cbb4476a61c961eb880dfde46/6917068444.pdf
- http://etcad.net/np/upfile/file/jabakiduzifikuxazo.pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/88bd00f3dea0a0b27c0f8b6ead13e33c/xadomasiz.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/fa93b013903c0f8bb2d5f318fa4f5b80/74468059008.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-6-17/20210617172940914486.pdf
- http://ottotech.center/userfiles/file/62026332787.pdf
- http://kasaitogo.com/uploads/files/59245475506.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c578f518711---92016303184.pdf
- https://namratalakhotia.com/userfiles/files/17304839639.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16088eb7a04cb1---gafurusovevizofubekunif.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac36d37537---dupemotekile.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/9c04c2edac7013807e87da5a69957b56/46008405593.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16095e96de716d---16182934351.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160942184b3c44---gogibevanunisimokuvosopop.pdf
- http://strefa-fitness.pl//fckeditor/editor/filemanager/connectors/phpplikifile/dawadewazatukebasu.pdf
- http://maciejabramowicz.pl/upload/files/file/28219569782.pdf
- https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f229eb5d10---talapekidiz.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/98vi4jtn2d9ekvi45u181b4fqp/dokuvuvu.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_off0000eb90.bin6c084fb798faa19a4f91514de49e1a74c8c2c86ad3d1a5fc9fa19cbdc42b6f60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB90 | 10744 bytes |
font_01_sfnt_off0001044d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1044D | 16792 bytes |
font_02_sfnt_off00011c5f.bin398c3ac22c4eb2a6add3a85c3fc3d112ca72a5dddad247937e7a2c89bf34d7e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C5F | 17012 bytes |
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