MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress sites, suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/16132874930c2b---vumirumu.pdf In PDF document text
- http://edv-denk.com/userfiles/file/70202232027.pdfIn PDF document text
- https://palet-school.com/files/files/79536908831.pdfIn PDF document text
- http://studiovalecchi.it/userfiles/files/72571524865.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/3f51fc48312be3d5e7d2170d1a8e7975/38387735286.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/i44r9n14d4o2deq4g4q2ivemtd/lubudufirej.pdfIn PDF document text
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210902011432.pdfIn PDF document text
- http://allprintusa.com/admin/images/file/kitevelo.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/xeduvotekeneritabefajapof.pdfIn PDF document text
- http://xn--aknmedical-yub.com/uploads/file/nitusijize.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/usr1kc7s9kj0pk0sacvppi4ms7/43626049841.pdfIn PDF document text
- http://premiumcsp.com/uploads/files/6300098133.pdfIn PDF document text
- http://sanyosushiglendora.com/uploads/files/xulisanep.pdfIn PDF document text
- https://genia-groupe.fr/images/files/wefigelitefir.pdfIn PDF document text
- http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210907_F4E03D9A0577CDF5.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1612eaab9f0ca3---92705130976.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136cb9b86cd6---77741164526.pdfIn PDF document text
- http://hongdanhaudio.com/luutru/files/giralugurefita.pdfIn PDF document text
- https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/29235931758.pdfIn PDF document text
- http://futimisdev.com/userfiles/file/seginalusutef.pdfIn PDF document text
- https://betalinktech.com/blmedia/file/4631388734.pdfIn PDF document text
- http://inbiosa.eu/static/cfiles/files/3999449130.pdfIn PDF document text
- https://rabudiagnostic.com/userfiles/files/23029661850.pdfIn PDF document text
- http://abwgulfport.com/uploads/files/96540283145.pdfIn PDF document text
- https://vibangnhadat.com/uploads/files/8533155974.pdfIn PDF document text
- https://beruanglucu.com/contents/files/majodebiwezasituragitedip.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=invincible+gta+5+pcPDF link annotation
- 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_off0000b560.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB560 | 14624 bytes |
SHA-256: 5642d0b234f9d320ab89bf019c13d037172af6b0af5d114510521c003f8f5e08 |
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font_01_sfnt_off0000d9f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9F6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f20d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF20D | 10452 bytes |
SHA-256: 6dc23c96a8b9fff385da64ffc6905457548e0c645a65ce1bbcc0145c0ccc64c2 |
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