MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs that point to compromised websites and disposable hosting, characteristic of a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://medvor.ru/uplcv?utm_term=what+does+the+nfc+icon+mean+on+my+phone PDF link annotation
- http://dailythang.com/userfiles/files/muxusavalamemiwe.pdfIn PDF document text
- http://studiotecnicomancini.eu/userfiles/files/bafewawik.pdfIn PDF document text
- http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/87545741390.pdfIn PDF document text
- https://daiichitravel.com/uploads/news_file/39320377983.pdfIn PDF document text
- https://www.khaosanpools.org/ckfinder/userfiles/files/51062601846.pdfIn PDF document text
- http://gallery4walls.com/upload/editer/file/42592809224.pdfIn PDF document text
- https://phunhai.net/upload/files/53041334352.pdfIn PDF document text
- http://fsgzb.com/upfolder/e/files/20210918063002.pdfIn PDF document text
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/raluzepizebitabo.pdfIn PDF document text
- http://gamecoast.by/uploads/files/27257218349.pdfIn PDF document text
- http://chothuexehochiminh.com/userfiles/file/ralixeritexaxalem.pdfIn PDF document text
- http://exosushi.com/uploads/files/pikavu.pdfIn PDF document text
- http://hurtowniagrafit.pl/userfiles/file/nubibimuxus.pdfIn PDF document text
- http://alsace.annuaire-regional.com/ckfinder/userfiles/files/65758059806.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16130bf93ab23f---zosenilelesipoxexanam.pdfIn PDF document text
- http://roletyhanarol.pl/files/file/gowubes.pdfIn PDF document text
- https://ozanetiket.com/TasarimAcarnet/serhali/upload/files/39298383802.pdfIn PDF document text
- https://nusamulticentralestari.com/Uploads/userfiles/files/mosetasazawovikuzebulazat.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1ac774ff6---36526242725.pdfIn PDF document text
- https://profipreklady.cz/www/ckfinder/userfiles/files/najenamalosev.pdfIn PDF document text
- http://www.iciparis.ru/ckfinder/userfiles/files/53053220360.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/gadazawotijota.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/gowunajop.pdfIn PDF document text
- http://topnotchimports.com/ckfinder/userfiles/files/20816868266.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/b8b51a2d388e89933e8d0c391c7c9a54/1869505562.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_off0000d8c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C9 | 10844 bytes |
SHA-256: 5cc7aebeec3c9a81b77ba88eb52b0a7061649cebb3bf127654afad8be79afd66 |
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font_01_sfnt_off0000f1b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000109c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C6 | 18192 bytes |
SHA-256: c9b5c83e8d97ec28887206cbd112b1406c7c9a44d91a17a976ffcd5690ee8392 |
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