MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classification and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS uploads, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://nomylo.ru/uplcv?utm_term=accounting+essentials+pdf PDF link annotation
- https://danfort.lv/userfiles/file/35006860706.pdfIn PDF document text
- http://battle.bpv.su/content/files/files/76228131570.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/51907401529.pdfIn PDF document text
- https://beaszemin.com/files/61728232828.pdfIn PDF document text
- http://hiniceshine.com/upload/76379901943.pdfIn PDF document text
- https://ww150006.linebot.net/upfile/files/20210901091554.pdfIn PDF document text
- http://pypconsultores.mx/userfiles/file/60345382631.pdfIn PDF document text
- http://rrarental.org/upload/file/70690497982.pdfIn PDF document text
- https://bselink.com/userfiles/file/toserorajumeb.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/ut7k38e0ruopf2adh5oai0h592/neduwewagugidimuresuxur.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16136820fbb951---nixidujevedozaxajil.pdfIn PDF document text
- http://saimiri.name/upload/file/papem.pdfIn PDF document text
- http://originalcheck.it/public/img_admin/file///68435025954.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/niwededipovozunapodinobif.pdfIn PDF document text
- http://armanetti.com/images/45009299748.pdfIn PDF document text
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc82a99713---mezuvemulabi.pdfIn PDF document text
- http://hzeiger.com/userfiles/file/52050394874.pdfIn PDF document text
- http://emke.hu/uploads/ckfinder/userfiles/files/xibenubimuduwomivijowif.pdfIn PDF document text
- https://support-trevianum.nl/userfiles/files/jefonez.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16146ae8f02986---delusonumikot.pdfIn PDF document text
- http://nature-revive.org/files/file/11540116027.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161425f13420b7---genuxo.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_off0000b153.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB153 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c965.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC965 | 16176 bytes |
SHA-256: 5497c8fb34fc5c49520380dbd34636fedfe299506fbbd6f1d4f3104cae2ba5eb |
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font_02_sfnt_off0000f23b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23B | 10776 bytes |
SHA-256: 73241fa03433c12806803228bbfd58c90cbbf5a67e71d7635ac840916c382558 |
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