MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many of which point to websites hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
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://wastran.ru/uplcv?utm_term=windows+operating+system+is+a+dash+software PDF link annotation
- http://evo-models.com/uploads/userfiles/files/madegawe.pdfIn PDF document text
- https://frisch.ro/files/file/bapuwonakewu.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/3c972ccd4d768e0a76c9e8f94f272d4c/31146353449.pdfIn PDF document text
- https://acconpriti.com/ckfinder/userfiles/files/rafasex.pdfIn PDF document text
- http://psychologkmalinowska.pl/ckfinder/userfiles/files/73098836128.pdfIn PDF document text
- http://torremaggiore.sitmap.it/files/files/24669556432.pdfIn PDF document text
- http://silarperu.com/UserFiles/file/dipivoz.pdfIn PDF document text
- https://economiadecomunion.com/ckfinder/userfiles/files/28274552886.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b740988b05---sewumemesukomuruv.pdfIn PDF document text
- https://2acontractor.it/images/file/limilekipenigijopirakowog.pdfIn PDF document text
- http://chingyi.tw/userfiles/files/88555191822.pdfIn PDF document text
- https://festivaldelmaridaje.com/sgi_userfiles/userfiles/files/96416287071.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/salisunubebewezivu.pdfIn PDF document text
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161453ff9b3367---bovezoduzixifibusuj.pdfIn PDF document text
- http://betonkeritesek.eu/Content/files/77296658560.pdfIn PDF document text
- http://nhadep30giay.com/uploads/image/files/nileza.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413a5d61520---gumanitejetopemi.pdfIn PDF document text
- http://baovekhucongnghiep.com/upload/files/dilenatorusufiramuju.pdfIn PDF document text
- http://firsttimehomebuyerstudy.com/images/file/17660406213.pdfIn PDF document text
- https://s-oil.hoakhanh.vn/uploads/image/files/14307295883.pdfIn PDF document text
- http://bytip.net/filespath/files/20210901083318.pdfIn PDF document text
- https://iwanbim.iwan.co/userfiles/files/kikigidudikatibejifono.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_off0000e48e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE48E | 11092 bytes |
SHA-256: 05a4180f6d2cf50daf012d7380aa29e69dd6ef5ce160a1082badf4e19ea93cf3 |
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font_01_sfnt_off0000fe13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE13 | 17372 bytes |
SHA-256: 3ac47010794fd4a70045003fcda013b522e49b3f08badcce7294dc8373865a1c |
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font_02_sfnt_off00012b02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B02 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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