MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a malicious PDF detected by ClamAV and ML classifiers, containing numerous links to compromised WordPress upload storage and disposable hosting. These links, such as 'https://coretry.ru/uplcv?utm_term=glioma+of+the+pons', likely serve as lures to phishing sites or malware downloaders. The PDF structure and link farm indicate a phishing or credential harvesting attempt, leveraging compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://coretry.ru/uplcv?utm_term=glioma+of+the+pons
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8654f35939---tiwowonunavutul.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0b1f4b499---moledusanosoxuna.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077f4d4246d3---52384527825.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160779a7a68fac---28482591497.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607d41410765a---doxutinivifuk.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/euf8bftk3i1bqmir9a9t9k49o6/nepexaleloxisaneva.pdf
- http://absolutelyneon.com/userfiles/file/mubuvexolunixisaduki.pdf
- http://dobrasekacka.cz/userfiles/file/ketakuzizosifapim.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071bbea805e9---56036251453.pdf
- https://eatorhours.org/e-bussiness/fckimages/file/48362646043.pdf
- http://johnmichaelharrisonlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wekuwitokujasosuw.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce9ffc4959---79394488411.pdf
- http://carefirstwalkathon.com/clients/8/89/89514deb4c0e8807eb046cac28c4977f/File/zifewob.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16077d098223c8---bavetiba.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082de66be9d5---rujaligibijekajovox.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/o03blrcf082quk4m9e6rks44up/47202840408.pdf
- https://ckd-otto.com/contents//files/32420646646.pdf
- http://fitviewer.de/files/file/38939438228.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4dfd7bf84---15446344693.pdf
- http://mobydick-band.de/fckdata/file/75563469989.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/a0467d9abfd3e2a4da99dfbbbf991697/masofajodugerul.pdf
- http://www.anjhimayath.com/upload/file/93148584087.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b488d8cacac---53169280589.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094869010f95---90093765928.pdf
- 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_off000114d5.bin8e803792ce859e1348f86484447b15428f726377924fc1ce4129d9c29ed68cae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114D5 | 17604 bytes |
font_01_sfnt_off000141d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141D0 | 16792 bytes |
font_02_sfnt_off000159e7.bind55793800c0de5b89e5a42fe4c1b14058471dce1ed69ac7fbf9fa5e9ba21a515 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159E7 | 10560 bytes |
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