MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of a 'download' button lure reinforces the deceptive nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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://inwebjor.ru/uplcv?utm_term=cbse+physics+class+11+book+pdf PDF link annotation
- https://etonbio.com/newsLetters/images/file/57609793546.pdfIn PDF document text
- http://aqcorth.specialty-match.com/upload/files/kenes.pdfIn PDF document text
- http://isdoor.ru/uploads/files/nixafitumowuxi.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135004d6f558---4679051185.pdfIn PDF document text
- http://acutecardio.ru/sadm_files/lozapa.pdfIn PDF document text
- http://savaksangida.com/resimler/files/98887030502.pdfIn PDF document text
- https://taichielite.com/louis/taichi/ckfinder/userfiles/files/16977255002.pdfIn PDF document text
- http://magdrywall.com/project-new/christianbook/upload_images/file/jaseba.pdfIn PDF document text
- https://zbmbudomont.pl/userfiles/file/91558439443.pdfIn PDF document text
- https://somogyplusz.hu/files/54313620413.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16140a5d66be06---86974065655.pdfIn PDF document text
- http://www.jasolasia.com/image/upload/File/83550961454.pdfIn PDF document text
- http://scandirent-new.ru/uploads/assets/file/mefapu.pdfIn PDF document text
- https://kotata-zlin.cz/obr/clanky/file/rijadubi.pdfIn PDF document text
- https://svenjakretschmer.com/ckfinder/userfiles/files/rojulovemajukujix.pdfIn PDF document text
- http://zentrumok.com/userfile/files/7582773381.pdfIn PDF document text
- https://angelsforwarriors.org/userfiles/files/vupinezatogenuju.pdfIn PDF document text
- http://infosierra.es/images/editor/74966648988.pdfIn PDF document text
- http://www.mbk-montage.nl/ckfinder/userfiles/files/waziruretumugarifek.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16135e0591b50a---59239066272.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_off0001141a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1141A | 18492 bytes |
SHA-256: b031d95694ce2994ac4bd175509c4c62a1bcab1a687a86f896cf3e5fbaf9e234 |
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font_01_sfnt_off00014390.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14390 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015ba7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15BA7 | 10844 bytes |
SHA-256: 0d2e78fca6ba71edd274bf67e286458006c777bd6f7661744a04862e78a171a1 |
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