MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing a large number of external links, many of which point to compromised websites or disposable domains. This behavior is characteristic of a link farm used to distribute phishing lures or malware. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://synerhu.ru/uplcv?utm_term=3d+dj+mixer+app+download PDF link annotation
- http://feuerwehr-mittenwalde.de/mediathek/files/zijofanufapudunixibu.pdfIn PDF document text
- https://pensiuneaselina.ro/userfiles/file/5459143644.pdfIn PDF document text
- http://ned.ru/uploads/files/21130065192.pdfIn PDF document text
- http://tekizolasyon.com/ckfinder/userfiles/files/jerararemofirakupusi.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c080dd2886---belemaravusadaruzi.pdfIn PDF document text
- https://lyubomiradineva.com/files/file/23273647576.pdfIn PDF document text
- https://northcoteplaza.com/userfiles/file/zekonivofepurulagun.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/3l010ah9to6bnd4ecklegj0tu1/dorukaxowofibibevekalaxor.pdfIn PDF document text
- http://oasis-inwaste.asia/files/file/nebajaxovom.pdfIn PDF document text
- https://samsunyapi.com/userfiles/files/71320970331.pdfIn PDF document text
- https://ice-group.pl/userfiles/file/59912022669.pdfIn PDF document text
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/revizamenago.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/161316ff12781a---42903933608.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210913_040348.pdfIn PDF document text
- http://belst.by/upload/file/27855866904.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe9fe772a6---34887479310.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a4dfaa4f4---tizefujid.pdfIn PDF document text
- http://ourpreferred.com/userfiles/files/nedozi.pdfIn PDF document text
- http://sakem.org/userfiles/files/54183745275.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff88c7bb2d---lukoribuzukesonerulid.pdfIn PDF document text
- https://ce-mi.pl/uploads/userfiles/files/bapigaduzavovuzijugibeg.pdfIn PDF document text
- http://2222.netsociality.com/upload/files/29076111920.pdfIn PDF document text
- http://valkexclusief.reviews/app/webroot/files/userfiles/files/19110314447.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_off0000c71c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC71C | 17292 bytes |
SHA-256: a9e6110084d9c047c5a450fcbed2e2348c4bc92e8f6117417110ea812374af5f |
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font_01_sfnt_off0000f3fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010c13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C13 | 10680 bytes |
SHA-256: 89a3a0a852354dc23caa7f1c1cc87e3085f13db2fbf36c2f2de5b92556d874c5 |
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