MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised WordPress sites and disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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=android+emulator+windows+vista+32+bit PDF link annotation
- http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/lavakelokidakimokiw.pdfIn PDF document text
- https://novinfasteners.com/userfiles/file/37473783850.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614660bba217d---zomebunekepeta.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/cq43081fih1f1i954bfa2k3epq/jagataf.pdfIn PDF document text
- https://hijaustabilo.com/contents/files/kirakodes.pdfIn PDF document text
- https://satesayap.com/contents/files/mofuwurojovejinejumaweke.pdfIn PDF document text
- http://qianshunqs.com/admin/upload/93863796030.pdfIn PDF document text
- http://mientrungland.net/uploads/image/files/59107803136.pdfIn PDF document text
- https://locoffice.ru/userfiles/file/bukepuzim.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/e24o9u7p7h6kj1n7hlv65sfqc2/dunadarofikesulonopipov.pdfIn PDF document text
- http://bortran.com/upload/image/file/20210902020054.pdfIn PDF document text
- http://dongduong.net/Images_upload/files/bepobexekotuvudused.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146838dc3c71---vujalokuburefexowagoliwor.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e14fe77161---letagifefe.pdfIn PDF document text
- http://svadbavmoskve.com/content/xuploadimages/file/67048017773.pdfIn PDF document text
- http://schubert-hh.de/image/file/24811012854.pdfIn PDF document text
- https://facades-et-traditions.com/actualites/file/21767584831.pdfIn PDF document text
- https://ezsprinting.com/userfiles/file/82474137824.pdfIn PDF document text
- https://siemreaptraveltours.com/userfiles/file/nakogezugo.pdfIn PDF document text
- http://agmapure.com/upload/files/kulev.pdfIn PDF document text
- https://suacuacuontoanphat.com/upload/files/18423743659.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_off0000d55e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD55E | 11076 bytes |
SHA-256: 8f8711bf8ab07ee99105930b9178a759bce961c1c1be8383cc2244adec64f5d7 |
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font_01_sfnt_off0000ef52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF52 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010764.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10764 | 18392 bytes |
SHA-256: 5f731555ac96db06497d990546827d7cddec2b3197d2bba1d0387ff3a5c99f1b |
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