MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is a phishing or malware distribution vehicle. The embedded JavaScript likely facilitates the redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://interstudy.net/userfiles/file/ravanufutenuwibojafanu.pdf In PDF document text
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a92e9a8cf6---wijagimetukawof.pdfIn PDF document text
- https://deycaterers.com/ckfinder/userfiles/files/91184182351.pdfIn PDF document text
- http://surestegc.org/documentos/file/xurobozizupedufazufixik.pdfIn PDF document text
- http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/47387737603.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/5e3f5c8a7dcc3a8d4f0823d9f0848325/69183681443.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/3f0c68eb2e5a60befcaba2f975458cff/xivililuku.pdfIn PDF document text
- http://parcroyale.hk/userfiles/jiloxitizile.pdfIn PDF document text
- https://lawweb.info/mycms/admin/userfiles/file/83837058192.pdfIn PDF document text
- https://imagebrandstudio.com/userfiles/file/90070122426.pdfIn PDF document text
- http://sirindhorn.net/upload/File/fumamexegoxazolo.pdfIn PDF document text
- http://okna-kurska.ru/page_edit/_samples/userfiles/files/74134441666.pdfIn PDF document text
- http://mkbeauty.vn/luutru/files/12002500218.pdfIn PDF document text
- http://kartywspomnien.pl/uploads/assets/file/57929953333.pdfIn PDF document text
- http://chornakorn-packing.com/ckfinder/userfiles/files/24160972213.pdfIn PDF document text
- http://intimatehotelpattaya.com/image/upload/File/wonanefujujefazumakizow.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/d13826f29870a62175f6cb267c204adc/gunumanoliwotinaxorif.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151c5676332e.pdfIn PDF document text
- http://tillyardci.com/userfiles/file/fuvaxapoleburibovekib.pdfIn PDF document text
- https://bookmyexcellence.com/bookmyexcellence/js/ckfinder/userfiles/files/sonujerelazigunetira.pdfIn PDF document text
- https://uleiuri.ro/userfiles/file/pureruwesubajo.pdfIn PDF document text
- https://szaniterplaza.hu/ckfinder/userfiles/files/nulabigigijaduwo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=capable+of+handlingPDF link annotation
- 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_off0000ce78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE78 | 18708 bytes |
SHA-256: 14d755dd4fcdeed65151bf52fb5d082dca4f4411d0b38fa5b60d7b915ba08071 |
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font_01_sfnt_off0000fe19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011630.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11630 | 10580 bytes |
SHA-256: f96b48e98bc4c9ba7175b6a7da0e0573c4b8159e105f2a3fa76b7f05b0c4ea11 |
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