MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Several heuristics indicate the PDF functions as a link farm, pointing to numerous compromised websites and disposable hosting domains. The embedded URLs, such as 'https://oniceh.ru/uplcv?utm_term=android+add+language+keyboard', are likely used to redirect users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://oniceh.ru/uplcv?utm_term=android+add+language+keyboard PDF link annotation
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/2601569826.pdfIn PDF document text
- https://0900107678.com/upload/file/96838733195.pdfIn PDF document text
- http://studioaba.net/userfiles/files/92931593249.pdfIn PDF document text
- http://zenithmetals.com/files/pomugonudakikegarobore.pdfIn PDF document text
- http://studiotecnicoarduini.eu/userfiles/files/tovisipunafowataviluzisur.pdfIn PDF document text
- http://patronusalapitvany.hu/public_html/upload/78719006005.pdfIn PDF document text
- https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/32340392875.pdfIn PDF document text
- https://arte-salon.ru/upload_picture/vakisewopozo.pdfIn PDF document text
- http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/73419847913.pdfIn PDF document text
- http://soyaksiesta3.com/userfiles/file/71404586153.pdfIn PDF document text
- http://rotarycochinharbour.org/ci/userfiles/files/32016717491.pdfIn PDF document text
- https://foodexgida.com/uploads/files/xiderarinonuvoveg.pdfIn PDF document text
- https://zaragozadenoche.es/upload/files/besereduxigakonav.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411b0a3e436---sulexejaxezazoginikugovip.pdfIn PDF document text
- http://studiosantomauro.it/userfiles/files/35102465474.pdfIn PDF document text
- https://gemma.lucien-sv.info/uploads/files/614b11f9325fd.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1614094fddb890---49996223685.pdfIn PDF document text
- http://thuephotocopytaihanoi.com/upload/files/rekafena.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141ab1356be4---25768710371.pdfIn PDF document text
- http://dezis.ru/uploads/files/gipupipuduzexiworevamidin.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16148004743a2b---44024639123.pdfIn PDF document text
- http://www.supair-lux.hu/ckfinder/userfiles/files/98081201006.pdfIn PDF document text
- http://mariancozma.com/_user/file/faraludabawu.pdfIn PDF document text
- https://enkaotomatikkapi.com/depo/sayfaresim/file/temididina.pdfIn PDF document text
- http://mgtofubbq.com/uploads/files/28865108515.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_off0000b150.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB150 | 14444 bytes |
SHA-256: a3b2d47f103669ec23fc16ef63023a0c2e08041a2d70e369faaca2e88a9fbcdd |
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font_01_sfnt_off0000d55f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD55F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED76 | 10584 bytes |
SHA-256: 2f8ebdc151ce248e3189a873acb7cd6405ccdbb33750f93235cc645afc1f32a2 |
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