MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to redirect users to malicious content. The presence of external URIs and link farms indicates an attempt to lead users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://archism.ru/uplcv?utm_term=checkmate+my+first+chess+book+pdf PDF link annotation
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846a1009c27---36022987738.pdfIn PDF document text
- https://grandplaza.bg/uploads/assets/file/xuroxafifovuxogiloku.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/4822d1e3a6052221a4f2a04d11d37823/kojopupixe.pdfIn PDF document text
- https://baxsporthorses.nl/userfiles/file/rovozadixomunaju.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1270138b6---90690843215.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/5m7v4ppp1jbjdtuhr9bdrpa9fh/fupisepejad.pdfIn PDF document text
- http://exima.kr/userData/board/file/77834009017.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e8cac243ed61854c40e78d79608e57cf/83755908744.pdfIn PDF document text
- https://anfauglir.com/images/file/78770717341.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/fjft0u2cato4r90bq56loe69m5/retakewakizit.pdfIn PDF document text
- http://ahkjt.com/upfile/file/jujujipovejedo.pdfIn PDF document text
- https://qualitymattressfactory.com/admin/userfiles/file/penanuvafamopawitanux.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/0c0156780f4a54f6c46c44b50878fc4a/37238723805.pdfIn PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/lijopuzugisepateda.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/ermveklmp4igj5qqego4qt6tv4/63855067317.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/9386356445a3ab71ef56294d61344f0c/koluxevefibininej.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160acf9f03655a---53869018628.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3d04ebff1---53401726874.pdfIn PDF document text
- http://bc-arman.kz/ckfinder/userfiles/files/66881496798.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/50b61a2e0bc0dc0aa49a855f7468db81/43437892815.pdfIn PDF document text
- http://color-gateway.com/userfiles/file/pugotojalo.pdfIn PDF document text
- http://lyshiying.com/d/files/fozefewarodupokepu.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_off0000c3d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3D6 | 11112 bytes |
SHA-256: 76a0162824f66247c7c05a5126217b394ebc4676918b3e71cc0947b694c31295 |
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font_01_sfnt_off0000dd9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD9F | 18120 bytes |
SHA-256: 75456984ce99c83eb58f71bd90080acbdf024f8e5a371866b6394215d70cfee5 |
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font_02_sfnt_off00010c75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C75 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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