MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The file's structure and the presence of external URI indicators strongly suggest it is part of a phishing campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://pistant.ru/uplcv?utm_term=constant+of+proportionality+worksheet+math+7+answer+key
- http://allprintusa.com/admin/images/file/6502521994.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16094136740153---belekererokufazapadilawat.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8c4900881---jowusewa.pdf
- http://patronusalapitvany.hu/public_html/upload/87065760686.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/je3kr9ln4gt1l9en4g70b1jb6e/81979694743.pdf
- http://royalrep.com/userfiles/files/fupiti.pdf
- https://swagath.co/new/ckfinder/userfiles/files/medepaxominawazawopo.pdf
- https://binarbaidequipment.com/public_html/userfiles/file/21053866825.pdf
- http://agendatourvietnam.com/hinhanh/file/vesojugadozadavivadabu.pdf
- https://fenixfalt.com/userfiles/file/385940619.pdf
- http://rebeccafantarchitetto.it/userfiles/files/gofesavijatozigupikovan.pdf
- http://babyshelter.net/assets/upload/files/65939025488.pdf
- http://vansuloi.com/uploads/userfiles/file/85624473484.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/9596c0ceac14ced565b6fe09dbb9954d/67637896896.pdf
- http://hyswimpool.com/userfiles/lidarenimogezebazalasid.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607832bcccfb3---21316165273.pdf
- http://adabaskimerkezi.com/upload/file/funevixawugoxid.pdf
- http://pscemetery.com/userfiles/file/72412196076.pdf
- https://jechrina.gr/FCKeditor/userimages/file/fipenejo.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160924fdfbe1ac---85547076982.pdf
- https://coimbatorepressclub.com/FCKeditor/userfiles/file/35414763251.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608c0c821a8ff---duwebujala.pdf
- http://omegapizza.net/uploads/files/kodorapikox.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c55a.bin5653d9b2af7a54375b326e93695ab1201797555abdc80b0522ee759da9dbd1fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC55A | 17260 bytes |
font_01_sfnt_off0000f208.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF208 | 16792 bytes |
font_02_sfnt_off00010a1f.bin6068239c739a45080605ccd64953da30a28e24b282858205d7254e8cd851ea0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A1F | 10996 bytes |
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