MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URLs, many hosted on compromised WordPress sites, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of external URIs and the link farm structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://smidgel.ru/uplcv?utm_term=critical+care+nursing+nclex+questions+pdf PDF link annotation
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a601bd071d9---letadoxikovipefikiboxuv.pdfIn PDF document text
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/437e910197f7c915c4686b3e7bb267b3/gavasaxifemotokotebun.pdfIn PDF document text
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/1aqlkq96rjquo7mk0gervqa12b/23830139285.pdfIn PDF document text
- http://vucert.vn/uploads/files/rujokepedelizifonulirot.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160c898043db49---tabakudetomosofikezij.pdfIn PDF document text
- http://opakowania-loga.pl/zdjecia/fotki/file/sesezitasipeturizamesivu.pdfIn PDF document text
- http://goldenagegroup.vip/userfiles/file/bomavasubim.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/22880768179.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbda4277466---wigoremejerul.pdfIn PDF document text
- http://kolaykanal.com/userfiles/files/2552473820.pdfIn PDF document text
- http://veterina-naslunci.cz/userfiles/file/votivusorosewijufamuno.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/869ddd020cdd722132769bae79f2642c/miwizada.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/babc2efdc41f06c1948e50ce7bc4d425/vapajiraberul.pdfIn PDF document text
- http://uticachemical.com/files/upload/files/kajajem.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16084dac68f7c3---lonomuxonukelixufori.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16079df5a5d4b6---dakezozoludex.pdfIn PDF document text
- https://africanresearchcenter.com/userfiles/file/16282741167.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/27c6db5c6da27c71867dba386ce6a86d/91715445484.pdfIn PDF document text
- https://mattress-leader.com/media/fopases.pdfIn PDF document text
- http://beamstraffic.ae/amb/userfiles/file/xisemuxipun.pdfIn PDF document text
- http://fritz-fahrlaender.ch/download/25495565929.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc5a0f31965---muwolufoziwuvujitev.pdfIn PDF document text
- https://deniz-sogutma.org/img/userfiles/file/lajujaliti.pdfIn PDF document text
- https://cfbadalona.net/ckdata/files/73954871897.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_off0000def4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEF4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f70b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF70B | 11176 bytes |
SHA-256: e782d1498a985f31221d3e01f7a6aa3c45f57102cd7e527e2f8a110dee2326ff |
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font_02_sfnt_off000110d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110D5 | 17824 bytes |
SHA-256: 8d3180d35a3001fa840d04a7ed6d9222ce5cdb503b53ce50873ef42e27b20c7e |
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