MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads, suggesting a link farm or phishing lure. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160bd31ca11981---48274535456.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/adf8f1f1056befa634a88c9813f49b69/marifopigofixu.pdf
- http://asustainable.com/global/file/vojiwofuvadaxunozunowuso.pdf
- http://vanillasky-ch.com/images/files/95359905512.pdf
- https://marathonroller.com/userfiles/files/pajobevizajiledomopixo.pdf
- http://portamarioarchitetto.eu/userfiles/files/12244235525.pdf
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3c5dfdc827---69654082187.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/da0d0ea9b0ea55635451e1474645f348/37264881184.pdf
- http://griswoldremgmt.com/uploads/files/kodaxedivud.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd12dc4083---bukefuwudowexikorifefijet.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607e47a04e14d---kudukobidedibaforuwoliz.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/16076c399d1ab8---57914504843.pdf
- http://daotaoyduoc.org/wp-content/plugins/super-forms/uploads/php/files/1pqmsqsilnq1ur1le36md9dbuo/63987159154.pdf
- http://randalljroutson.com/clients/44711/File/rejor.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16072409892dac---tetikizuzexerisedisetase.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160afa1eac11ac---sevoja.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/e3c98a38c1c55f1f6693a5830da00faf/21787458508.pdf
- http://igigeothermal.jp/userfiles/file/wusopafibatewebizeneti.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160853762b65ba---vefatu.pdf
- http://www.startservis.sk/novy/ckfinder/userfiles/files/79451381856.pdf
- https://misbahelmudii.org/ckfinder/userfiles/files/xatekepunejuzutumarof.pdf
- http://tulga.ru/editor/files/tiporanusafovufubupopu.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/bcc92c8251a4b069b8f0a6d244ea5588/lofuduzoturomi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=expresiones+algebraicas+y+ecuaciones+de+segundo+grado
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c633.bind7ddbaa1585cb2b06d4b4f7a93f664516289e4025802942809dad76b477568b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC633 | 16928 bytes |
font_01_sfnt_off0000f0c8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C8 | 16792 bytes |
font_02_sfnt_off000108df.binb4a76ea6ec34dcdb5bfcfdfcba1c7ace7581b2dd6752140276e942d1a685fecc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108DF | 11028 bytes |
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