MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or delivering a secondary payload via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://archism.ru/uplcv?utm_term=formula+for+arithmetic+sequence+sum PDF link annotation
- https://inprovitcentroamerica.com/ckfinder/userfiles/files/kusimemogekur.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d970b3f4ae---gidiru.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613643151f11d---41170550778.pdfIn PDF document text
- http://abpjseah.news-read.com/upload/files/gosege.pdfIn PDF document text
- http://kondicionery-himki.ru/upload_picture/file/betuvumajebibesovaxumek.pdfIn PDF document text
- http://rajhansnursery.com/userfiles/file/lobowananurazafo.pdfIn PDF document text
- https://bloc-immo.com/images/juzupivudujolapale.pdfIn PDF document text
- https://bdaudit.ro/userfiles/file/28251953769.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f9d47cfa9---63724416261.pdfIn PDF document text
- http://liluby.com/upload/file/68290977312.pdfIn PDF document text
- http://fittbikese.hu/files/file/8967048402.pdfIn PDF document text
- http://vytvarnyobchod.cz/UserFiles/File/dipafuzitox.pdfIn PDF document text
- https://marathonblainville.com/userfiles/files/54883949765.pdfIn PDF document text
- https://comptables-publics.fr/userfiles/file/bebirajut.pdfIn PDF document text
- https://people11people.com/uploads/File/xodenen.pdfIn PDF document text
- http://prochem.vn/images/uploads/files/52200876550.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1612eac55eb5b2---zikavubivuvo.pdfIn PDF document text
- https://eletmodguru.hu/files/files/1005220644.pdfIn PDF document text
- https://oolong-dining-co.com/webroot/editor-uploads/files/lozif.pdfIn PDF document text
- https://mariellatriolo.it/public/file/bamunerenasakeririjeruj.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/37612868502.pdfIn PDF document text
- http://bbu.vn/Images_upload/files/53039253903.pdfIn PDF document text
- http://kedehg.com/ckfinder/userfiles/files/69985638459.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_off0000b8ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d0dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0DC | 15968 bytes |
SHA-256: 4346b4170df1aba8d8a54d46c4abf3e7766c2a06218973a4b1cf088989f0a6cb |
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font_02_sfnt_off0000f9b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9B1 | 10824 bytes |
SHA-256: d2bbb36a36e8feea5963bebbe91a11865814ac6af7280bfa495e0837f8809681 |
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