MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to compromised CMS upload directories 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. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://krisoc.ru/uplcv?utm_term=gaunt%27s+ghosts+ghostmaker+pdf PDF link annotation
- http://ahkjt.com/upfile/file/38567446462.pdfIn PDF document text
- http://toshiteriyakiburien.com/uploads/files/teporuka.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/fibavoxovulak.pdfIn PDF document text
- https://bawaniint.com/ckfinder/userfiles/files/vekurogunef.pdfIn PDF document text
- http://bscsaoner.in/ckfinder/userfiles/files/nerera.pdfIn PDF document text
- http://cateringkieuan.com/uploads/userfiles/file/wazatilunirunujuziguvi.pdfIn PDF document text
- http://melhi68.com/clients/69549/File/62162585302.pdfIn PDF document text
- https://colakcivi.com/userfiles/file/14183728705.pdfIn PDF document text
- http://tz5168.com/uploadfile/image/2021/06/21/file/20210621_051615_182.pdfIn PDF document text
- https://okinawa4d.com/contents//files/98580657981.pdfIn PDF document text
- http://thedewakohchang.com/image/upload/File/idokajejoxanomupi.pdfIn PDF document text
- https://dermatologie-chamonix.com/userfiles/file/7996731343.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2884cf3b1---11997894988.pdfIn PDF document text
- http://doradcyprawni.com/images/pliki/ziximobilojas.pdfIn PDF document text
- http://lacyfamilyunity.com/clients/2/20/203fd950dafdada58ea32e7b96f0d147/File/16901920782.pdfIn PDF document text
- http://gazosilikatnn.ru/uploads/files/46224621251.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7476d1f873---39722127374.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fad5af3a86---60395691816.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/c2d23511da69bf5c8670b68488509693/govunevug.pdfIn PDF document text
- https://jodhpurtravels.com/nbloom/fckuploads/file/kaxowevafomila.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b5130372ac1---ziroginolub.pdfIn PDF document text
- https://istanbulbalbir.com/upload/ckfinder/files/zufajiveputogivutu.pdfIn PDF document text
- http://maplewoodmachine.com/clients/1/17/17f0ea2532424b9b8bf99baf53cd3763/File/87419804440.pdfIn PDF document text
- http://recrute.fr/files/files/40644709720.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_off000151f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x151F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00016a05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16A05 | 18060 bytes |
SHA-256: da2fcd805ccf0dd14edda49471da68495a87434bce9cef959398449a1da30dda |
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font_02_sfnt_off000198ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x198EA | 11072 bytes |
SHA-256: 61d863d2892d388e459d11b58a6f3846d53a78133202ed4e3cb5044b3ba9f983 |
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