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 are hosted on disposable domains and appear to form a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/89cb8930a07cc603f2e61764ccbb1796/33021838843.pdf In PDF document text
- http://speckrepej.com/upload/file/59770238084.pdfIn PDF document text
- http://samnakthodrahassob.com/userfiles/file/67561516453.pdfIn PDF document text
- http://kvbm.org/pds/userfiles/files/12104357547.pdfIn PDF document text
- https://uetty.xyz/js/ckfinder/userfiles/files/3665267487.pdfIn PDF document text
- http://baharev76.ru/userfiles/file/96899984842.pdfIn PDF document text
- http://satyamtracparts.com/userfiles/file/faritukunepagegira.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/tmc67klu0onaaqdd2bcro58gro/badopuvo.pdfIn PDF document text
- https://miguktour.com/FileData/ckfinder/files/20211003_E46791667700023A.pdfIn PDF document text
- http://debseven.net/UserFiles/File/35218722366.pdfIn PDF document text
- http://safarang.com/basefile/files/widikakitiwilutazes.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b0c9552282---pasonalexetigisugawutef.pdfIn PDF document text
- https://yenicekentkaplicasi.com/userfiles/file/21242326796.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614afc4ab9c5f---gesebiwagupega.pdfIn PDF document text
- http://ahjygjg.com/upload_fck/file/2021-9-25/20210925222759743564.pdfIn PDF document text
- https://gretajensen.com/ckfinder/userfiles/files/wenisaxudiguzul.pdfIn PDF document text
- http://caycanhtuyhien.com/uploads/image/files/69015489444.pdfIn PDF document text
- http://bhhangkhong.com/upload/images/files/89983699925.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/6250621017.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1615679f18fdb4---491522522.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=the+intellectual+conservativePDF 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_off0000e3ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3EE | 10456 bytes |
SHA-256: 289f9045284c4d02762260ec5d5144fef71c9c562a3e7a2f6fcd05c47337cfa1 |
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font_01_sfnt_off0000fbb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBB1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000113c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113C3 | 18648 bytes |
SHA-256: 9c0f579640fd3a14f22c06d3fbb6fa3d6ec26118e8f2058c5a7a7ca084562ac6 |
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