MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and ML classifiers. It contains embedded JavaScript and a large number of external links, many of which point to disposable hosting or compromised sites, suggesting a phishing or malware distribution attempt. The presence of embedded JavaScript indicates an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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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://krisoc.ru/uplcv?utm_term=millionaire+fastlane+pdf PDF link annotation
- https://fiberglasssupplydepot.com/userfiles/files/loteboje.pdfIn PDF document text
- https://nileagriculturalindustries.com/file/zuxamux.pdfIn PDF document text
- https://thebottombillion.org/business_school/uploads/file/fidixirewogegarimine.pdfIn PDF document text
- https://mumegram.com/userfiles/file/padonijegomovexusipurovin.pdfIn PDF document text
- http://ratchadatitan.com/UserFiles/File/ruwuxukozowo.pdfIn PDF document text
- http://dongshengcable.com/images/upload/File/63721619926.pdfIn PDF document text
- http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/tigem.pdfIn PDF document text
- http://samuiluxurytravel.com/Uploads/file/59171721599.pdfIn PDF document text
- http://centralcogtc.com/uploads/file/rovizug.pdfIn PDF document text
- https://solucionaesp.com/ckfinder/userfiles/files/bigezitotubuje.pdfIn PDF document text
- http://cleanking.net/userData/board/file/kaneposewi.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16138a6e57ca43---venuxapugi.pdfIn PDF document text
- http://cosonhuath.com/hinhanh_fckeditor/file/55852859722.pdfIn PDF document text
- https://perfecthospital.net/ckfinder/userfiles/files/pajubujepeluwegug.pdfIn PDF document text
- http://brukikostka.pl/uploads/page/file/xuvopasumexibiladix.pdfIn PDF document text
- http://wolfpackbasketballacademy.com/content_docs/86758127304.pdfIn PDF document text
- http://savitaco.com/uploads/images/files/nekaporimikikanedogibuxam.pdfIn PDF document text
- http://toonesk.com/upload/jetawumanozugutetature.pdfIn PDF document text
- http://mudrkanuch.sk/editor_uploads/system/files/61215920604.pdfIn PDF document text
- https://kasihpaham.com/contents/files/96256934574.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f81b518367---26867289146.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613313377413e---61059136268.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_off0000e039.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE039 | 18608 bytes |
SHA-256: 69d9e3deca5bdea0d60da67f4d7c8b26a8b756161868c7fff11ec9c9e237ceef |
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font_01_sfnt_off000110a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110A6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000128bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128BD | 10484 bytes |
SHA-256: 9bd62ef22f70092be62ecab7898afc516b3898d708bfa9272f7b773989357d7f |
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