MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to distribute malicious files. The presence of a 'download button' heuristic further supports the lure-based attack pattern. ClamAV detection and ML classification strongly indicate malicious intent, likely to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9928
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=chemical+engineering+gate+books+pdf+free+download
- https://bliznacite.com/files/70669616736.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/bb0e44b814136d2666e78b24086c3406/wotumixirubenulepisura.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160838e27406e1---35315795870.pdf
- http://nextgenship.net/upload/file/20210522162168317768.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607d70cda69a6---27567503381.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c815362ea3---61031268356.pdf
- http://championshipsportsrings.com/clients/23492/File/27700197029.pdf
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b970c9dd88e---91638221460.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/cee4320b56c7311134b39e347e8f082f/jobovewefot.pdf
- http://mtcclassof81.com/clients/0/0a/0a45bd3013a8cc77df817aa526a911b1/File/47571725543.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/d2uordivtic4h3lo08mu3i0d77/64683573194.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/4c04fc50179824d3c52e997790abcb01/ropudaxezorosupuremakupu.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d87a25c2e2---25479640093.pdf
- http://chono.mn/uploads/userfiles/files/37999403849.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087cca9884d7---tumogemesibuvifalizizu.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cc8ce494d72---30789711513.pdf
- https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607644ecbb0a1---55352960944.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160830891c4b83---zobidudoreziwasewoluzu.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4d9b2bd12---fozuzazolezudug.pdf
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/djkmc46g38o7g5hljoujtbftfk/62795747915.pdf
- http://alicekhenrylawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pamolilonutobixulode.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce0e1e20528---jobumavalebamifaj.pdf
- http://ascensionchina.com/userfiles/file/duvidamasosivo.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3f147fbd4---pofifa.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_off00014272.bin7031dc42eb7fce6a5b8c7b41abb69104098475441727eaed7165b567badd6d6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14272 | 11416 bytes |
font_01_sfnt_off00015cd8.bin1cb5a60fd2f6ed2383847f246210fcadcac55126f4188928ac73eaf21966c74c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CD8 | 18012 bytes |
font_02_sfnt_off00018c53.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18C53 | 16792 bytes |
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