MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with many distinct hosts and URLs, some pointing to compromised CMS upload storage. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The embedded URLs suggest an attempt to redirect users to potentially harmful sites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://medvor.ru/uplcv?utm_term=virtual+escape+room+hogwarts PDF link annotation
- http://bsa.by/ckfinder/userfiles/files/37658219942.pdfIn PDF document text
- http://kingsfci.com/userfiles/file/40617940961.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161482df2a0de4---54483290125.pdfIn PDF document text
- http://allasclub.com/campannas/file/sevomabezeranu.pdfIn PDF document text
- https://full-flavors.com/img/Data/file/xotagurajibetapunenatu.pdfIn PDF document text
- http://becucci.it/userfiles/files/wawowe.pdfIn PDF document text
- http://daedukgs.com/admin/fckeditor/data/file/20210907151716.pdfIn PDF document text
- http://futsalcb.cz/picture/vtextu/file/wizavizuwap.pdfIn PDF document text
- https://makiriaszto.hu/ckfinder/userfiles/files/damurek.pdfIn PDF document text
- http://hilimall.ae/uploads/files/57505219481.pdfIn PDF document text
- https://digireg.nz/upload/ninomawonoxovegigalin.pdfIn PDF document text
- http://jumpinfit.it/userfiles/files/39972418287.pdfIn PDF document text
- https://lmetinternationalschool.in/ckeditor/ckfinder/userfiles/files/befiziwizosanutufo.pdfIn PDF document text
- http://sinching.com/uploadpic/files/202109112159361439.pdfIn PDF document text
- http://www.de.ruben.pl/ckfinder/userfiles/files/76720045132.pdfIn PDF document text
- http://oodow.cn/upload/file/210919230558283683tsmk6mg14ni6.pdfIn PDF document text
- http://termocity.by/pics/files/43940470580.pdfIn PDF document text
- https://bokaichenyu.com/upload/files/regupomogisigenixageteno.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1927bc870---70134193832.pdfIn PDF document text
- http://agisinfo.ru/uploads/content/files/fobifugorisosowofiwemuzum.pdfIn PDF document text
- http://animationcoach.com/userfiles/file/wibup.pdfIn PDF document text
- http://polletnv.be/uploads/files/30193021629.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16140d8630a008---wusuwamozepo.pdfIn PDF document text
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/voraketuvikedil.pdfIn PDF document text
- http://suchanekstomatolog.pl/files/file/69045006666.pdfIn PDF document text
- http://juncheng.tw/upload/files/42294116756.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_off0000de76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE76 | 17316 bytes |
SHA-256: 868ec10ee8b7ad9afa2df207f6dda64b3fb49c12c418095ccbd374c032095e8e |
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font_01_sfnt_off00010b20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012337.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12337 | 10872 bytes |
SHA-256: 97d67acfbb12b1434366b4e60e9ede8c71233b5484d97497a0b060c931513d08 |
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