MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a tactic of using disposable hosting and compromised sites to obscure the true malicious destination. No scripts were extracted, but the overall structure and URL patterns strongly suggest a phishing or downloader attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://krisoc.ru/uplcv?utm_term=yardi+voyager+7s+user+manual PDF link annotation
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/a36f44c4c1ed9cd20019862039ff77f8/94810661586.pdfIn PDF document text
- http://planet-for-events.de/userfiles/file/31036132927.pdfIn PDF document text
- https://greenlakepaint.com/ckfinder/userfiles/files/49163230238.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16075477fc8c2d---45314972985.pdfIn PDF document text
- http://fkhd.cz/data/img/44458342368.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c54ec0eb86---jojewiwobedu.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160abc68cf2335---nuradusigiwo.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c03bdcbcb40---soburuxulejuxuxo.pdfIn PDF document text
- http://autoscuolepintozzi.it/userfiles/files/pinafukupupufamelexol.pdfIn PDF document text
- http://abaj.cz/UserFiles/File/97888426034.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/a9c3b74910a9f5c32bb3e85d89955827/87799109159.pdfIn PDF document text
- http://asea-admin.com/_userfiles/file/20210811124320.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ee5f127e6---9808094947.pdfIn PDF document text
- http://anticacarsulaeborzoi.eu/userfiles/files/vavepipipub.pdfIn PDF document text
- https://hijaustabilo.com/contents//files/33313099746.pdfIn PDF document text
- http://novichiha.ru/pic/file/11207507721.pdfIn PDF document text
- https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/3646e4efc2a2641911effe7a42aa2220/57225380583.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3ab36a8ec.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d95d513591---rozupugarudixivaw.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/mm2f9gtv8nidspisdomlcc9nlk/giforobe.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/fipih2l15l15bup4l7fu83nmj0/nosuranuzatoxe.pdfIn PDF document text
- http://planbmedia.hu/files/38949424080.pdfIn PDF document text
- http://life-homeshop.com/asset/uploads/files/jisoguvonoveneroginamaped.pdfIn PDF document text
- http://tajesink.com/Uploadfiles/files/45228063701.pdfIn PDF document text
- http://jessicarossitto.com/clients/7/7c/7c16b8c799dae9ffcd1258f31d6ff645/File/pudowiziwodokodomegibex.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d661.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD661 | 16264 bytes |
SHA-256: 03d708ce1b810ca30b483d58165ec0bb1bdef7296bce01c3990ec41242c64508 |
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font_01_sfnt_off00010027.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10027 | 10808 bytes |
SHA-256: d39b1a7187e5a2f81b6f520f793a8141db8486d13ca79a04ba697ae088d1424d |
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font_02_sfnt_off000118e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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