MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9761
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/50c06bde58bed9bec4fc8c6e1f94db6d/detosukibebojoligo.pdf In PDF document text
- http://adance0112.com/upfile/editor/file/3648713853.pdfIn PDF document text
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/d1bohn4qion18kl2ro2udov53a/fujowakuzegorovipofoledip.pdfIn PDF document text
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa1bbe6c25---80202145769.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b437dc784d4---15310144834.pdfIn PDF document text
- http://rund-sro.cz/UserFiles/File/mitidobapuvi.pdfIn PDF document text
- https://h1t-url12shio-turbo.com/contents//files/pufumozusitatanimibitobex.pdfIn PDF document text
- http://pileshoppen.dk/userfiles/file/76046658089.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ec24eddb4---zududinalitebi.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/688dd6bd8d9df40ef5c0cb50ffe59fb1/gewabixotegibotofe.pdfIn PDF document text
- http://viettranslators.com/webroot/img/files/vagof.pdfIn PDF document text
- http://izumrud38.com/ckfinder/userfiles/files/83875048274.pdfIn PDF document text
- http://gyndoktors.de/ckfinder/userfiles/files/65666939894.pdfIn PDF document text
- https://laps.pl/userfiles/file/vuvululaxilisiwenu.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/uvk8nerkda84n6qd9530t2ia64/74384864470.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/291093e3936c21005c0f3264eac12347/perowodifu.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/19479627566.pdfIn PDF document text
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/cc0a684eb7061b97967beffaee500127/junaluta.pdfIn PDF document text
- https://lanjutpt1.com/contents//files/69728305634.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee090fddb07---5364500453.pdfIn PDF document text
- http://language-coach.pl/uploads/files/46125460278.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/jaupqr84hlgepoo6322204tfn2/46689213793.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/ia4f8mrig5cgge9qgvr2ij3lte/80160809712.pdfIn PDF document text
- http://extracam.es/app/webroot/arxius/file/nofaxe.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c670fa0ebf2---puferajokudev.pdfIn PDF document text
- https://ahreco.com/uploads/news_file/91965445530.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/86260664559.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=sniper+3d+assassin+sniper+arena+tipsPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eff0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFF0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010807.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10807 | 10464 bytes |
SHA-256: 34b9fc33a210fa12f95e53b6128b6c973e19d9ec67bc3581305955316dad8d28 |
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font_02_sfnt_off00011fe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FE8 | 17384 bytes |
SHA-256: 38c56e107615154520d19df82b1fdea602c64f069e55e27e443a80764754c5a2 |
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font_03_sfnt_off00014d22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D22 | 16312 bytes |
SHA-256: 7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
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