MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which appear to be hosted on compromised or disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://synerhu.ru/uplcv?utm_term=how+to+activate+windows+server+2012+r2+standard+evaluation+version PDF link annotation
- http://accessoriesunlimitedinc.net/catalog/file/luxebofufivibogoluv.pdfIn PDF document text
- http://vce34.ru/attachments/file/raroxi.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c1eb49c1bab---vesugovejeninekurupevanef.pdfIn PDF document text
- http://rollfactorytogo.com/uploads/files/13773916296.pdfIn PDF document text
- http://resurrection-life.net/userfiles/files/seropozikoxamebak.pdfIn PDF document text
- https://vokalensemble-vocembalo.ch/userfiles/file/xuwimofepenesaku.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/41206629466.pdfIn PDF document text
- http://villa-carlshorst.de/sites/default/files/file/zelugujov.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/5punvl80tt5pq0ersn7tusd384/13173205867.pdfIn PDF document text
- https://haidangpc.com/contents/files/sodisijuk.pdfIn PDF document text
- https://kultmotor.hu/images/files/27905509245.pdfIn PDF document text
- http://nyitotthaz.hu/userfiles/files/jokubasagi.pdfIn PDF document text
- http://syuncyoku.jp/upload/file/3533174740.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910d04e4244---wabuxerobodinumumibomegum.pdfIn PDF document text
- http://caycanhtuyhien.com/uploads/image/files/dilomomaxexizokafaluxi.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eddd36ec7a---luxalaj.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b0c3ab920---popinesuzufubimid.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c38bc2c2a0f---64581394181.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16109fbdfe2504---gikilobireduweko.pdfIn PDF document text
- http://twfindia.in/userfiles/files/tesemadufudodabo.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077638f65a1c---nimatamewegonajukazatafa.pdfIn PDF document text
- https://mehreganimaging.com/images/upload/files/movetebolowanesesak.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_off0000d9db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9DB | 17084 bytes |
SHA-256: c54cded98d34e0fbd95c607ccd2f500b0df6f5dfc876eed78e261ac0b61d1ea5 |
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font_01_sfnt_off00010628.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10628 | 10900 bytes |
SHA-256: d773df9ca5ef9e1068e01adf7949beecb8d9686980a7ee9f9fc886effe392276 |
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font_02_sfnt_off00011fa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FA8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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