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 file contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://philabc.ru/uplcv?utm_term=free+account+onlyfans+premium PDF link annotation
- https://premiersuli.hu/files/files/55240820488.pdfIn PDF document text
- http://jtipartner.com/ckfinder/userfiles/files/3120955760.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f5f497f14---38877121826.pdfIn PDF document text
- https://footballsod.com/images/ck-uploads/files/91880304682.pdfIn PDF document text
- https://uslugiinzynierskie.eu/eurostyl/photos/file/76948672607.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/8577884373.pdfIn PDF document text
- https://strongpointmarketing.net/userfiles/file/69008150482.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/615d3nt0qs3qkcg7kc7qpasjjb/23033283390.pdfIn PDF document text
- https://defi128.phpascal.com/userfiles/files/kurokalupojifiw.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/161367468de243---8582268577.pdfIn PDF document text
- https://ofly.om-digitalsolutions.cn/upload/files/sinijidejewe.pdfIn PDF document text
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/kubalipo.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148310b66e6f---8788114978.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///87052454987.pdfIn PDF document text
- https://ausztriasi.spawellness.hu/upload/hirlevel/files/46887844568.pdfIn PDF document text
- http://watch62.ru/files/files/zekuze.pdfIn PDF document text
- http://j-club.eu/userfiles/file/ladeg.pdfIn PDF document text
- http://candientushinko.com/images/file/mudekakubewizerenu.pdfIn PDF document text
- https://acavacecio.it/userfiles/files/79663766270.pdfIn PDF document text
- http://sromedical.com/file_media/file_image/file/lepelo.pdfIn PDF document text
- http://fpempresa.cen.es/userfiles/files/domemasokuxikag.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/467cca20c75c4aedfd78e64afe73cac0/84971609122.pdfIn PDF document text
- https://dusunceokulu.net/resimler/files/90734816083.pdfIn PDF document text
- https://gestionarival.com/userfiles/file/kotugukol.pdfIn PDF document text
- http://riviera.az/userfiles/file/roronedewug.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_off0000ebad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBAD | 17372 bytes |
SHA-256: ae70808c463e5976a5d6fa2826857a3e8fd231b8c9493196407c5c522887bc9a |
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font_01_sfnt_off00011910.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11910 | 10832 bytes |
SHA-256: d79ca3403ef22b5806f28dd5ef24f903b347846dfd6ba3b2257231b2d7e8dde3 |
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font_02_sfnt_off0001320f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1320F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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