MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate that the document's primary purpose is to redirect users to external, potentially malicious websites. The presence of compromised CMS upload links further suggests a pattern of distributing malicious content through various hosting platforms.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://medvor.ru/uplcv?utm_term=play+store+will+not+update PDF link annotation
- http://leicesterbiketec.com/userfiles/file/tujodilaj.pdfIn PDF document text
- http://lokalsport.no/userfiles/file/43806290829.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/cjagntsi3lnb4ktvet54293m2n/maronexavesitivutapag.pdfIn PDF document text
- http://efsanepin.com/calisma2/files/uploads/sepisonolevegapoku.pdfIn PDF document text
- http://freewest.at/99237047956.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138f99ad06b1---tiwid.pdfIn PDF document text
- https://chingchia.com/uploads/files/202109091920177747.pdfIn PDF document text
- http://telegid.tv/userfiles/file/sakamikepevakuladez.pdfIn PDF document text
- https://larustt.com/upload/ckfinder/files/todozutevadidijudo.pdfIn PDF document text
- http://cayxaotamphan.net/userfiles/image/file/sozaxefuniwu.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/c0eb43777d2f4606ff52a7567cd388dc/79294160050.pdfIn PDF document text
- http://ukonlinedirect.com/userfiles/files/5377094775.pdfIn PDF document text
- http://megaprestige.ru/uploads/files/bofupusomegekimowamer.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/895ed9d871f97309811f8d3dace50135/16727385048.pdfIn PDF document text
- https://svetplus.com/userfiles/files/dowapitudupudipevo.pdfIn PDF document text
- https://eventpro-kontraktorpameran.com/uploaded/files/87227548631.pdfIn PDF document text
- http://jarauwerdaenzn.nl/userfiles/file/95649749318.pdfIn PDF document text
- http://halaljones.com/uploads/files/81418156404.pdfIn PDF document text
- http://thanglong.vn-greenenergy.com/ckfinder/userfiles/files/23388054971.pdfIn PDF document text
- https://prawobrzeze.info/userfiles/file/7257916596.pdfIn PDF document text
- https://camelcarpet.org/d/files/80936410330.pdfIn PDF document text
- http://yuha.be/_files/file/gujifamamanurokigorajenu.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_off0000bca6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCA6 | 10684 bytes |
SHA-256: 3cb3b547a9974d5b5f490a668b51742d64558347cdeecf0c3c6ab27ac081c2c7 |
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font_01_sfnt_off0000d557.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD557 | 16660 bytes |
SHA-256: 3b11db24da6fd803278e48cdd42202871cc922690dfb76b05e7727342e55a1a5 |
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font_02_sfnt_off0000fffc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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