MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users. The presence of these links indicates an attempt to direct users to malicious content, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://oniceh.ru/uplcv?utm_term=filosofia+nahuatl+pdf PDF link annotation
- http://pattarasawat.com/ckfinder/userfiles/files/43214820327.pdfIn PDF document text
- http://efuturesthai.com/uploads/files/naweture.pdfIn PDF document text
- http://jayeonrak.com/upfile_editor/2021/files/nineme.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161461a04a493d---zelogegililijikezokedofok.pdfIn PDF document text
- https://photopoligrafic.ru/ckfinder/userfiles/files/40778522811.pdfIn PDF document text
- https://stockbauer.hu/uploads/file/pibevumogegevuginaza.pdfIn PDF document text
- http://bentleyplemtech.ru/userfiles/file/52548549173.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/161495e3ec6754---laxosuvipo.pdfIn PDF document text
- http://zerosquareonline.com/file/26802854368.pdfIn PDF document text
- http://dinobajka.pl/Upload/file/27374243760.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/fagenaxaluf.pdfIn PDF document text
- https://stradatextiles.com/upload/ckfinder/files/pazijonogeraxoravefodalaw.pdfIn PDF document text
- http://koppeika.ru/userfiles/file/kokudevapup.pdfIn PDF document text
- http://teormech.ru/teormech/usrimg/file/5900870268.pdfIn PDF document text
- http://caythuocdangian.net/images/files/kamon.pdfIn PDF document text
- http://bulongvungtau.com/media/ftp/file/57975151857.pdfIn PDF document text
- https://linhngapt.vn/upload/files/30590354140.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/16132e4f0af28a---womirosoluzemapazuxow.pdfIn PDF document text
- https://wintechindia.in/ckfinder/userfiles/files/65299904464.pdfIn PDF document text
- https://cpsguffanti.com/uploads/file/wulafebakipodokatoga.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c9443b197---rimopisemunitajewulen.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/199e06cbfd7de2f20025e77d382aeb9c/66252607069.pdfIn PDF document text
- http://ros-audit.com/i/up/file/zarujezarosodo.pdfIn PDF document text
- https://interconformity.ro/images/file/todepu.pdfIn PDF document text
- https://westhigienia.hu/editor_up/70268016824.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_off0000bb79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB79 | 10440 bytes |
SHA-256: b3248c7f17b7931c9a9b7e0f8fdd7d5fa4856aa12c92f21b47b3538909082167 |
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font_01_sfnt_off0000d302.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD302 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eb14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB14 | 18744 bytes |
SHA-256: 6b888c19bd940c6a46188fea111fbbad9bf8330f4ad79062441fc1ae5bd81838 |
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