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 compromised 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 malware delivery. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://tch.lu/files/files/doxuveditetoliwalibamanu.pdf In PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141c1d5b43eb---84101838786.pdfIn PDF document text
- http://baldonimarcostudio.eu/userfiles/files/movajavamidimefem.pdfIn PDF document text
- http://tiquital.com/documentos/file/31213264181.pdfIn PDF document text
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/47b55708ef930b0f3e94b8a02b28b293/fawav.pdfIn PDF document text
- http://china-hold.com/UploadFile/file/20210904100618964.pdfIn PDF document text
- http://isotope3.pm-ural.com/uploads/files/84701130946.pdfIn PDF document text
- https://mr-alian.com/upload/ckfinder/files/vomixot.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146a3a1921f6---lugizotorimusofexute.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8648f1f62---14020032179.pdfIn PDF document text
- http://thienlongadv.com/upload/files/zoxibogosow.pdfIn PDF document text
- http://upasamed.org/Content/uploads/files/bumepuxifezegorupefoloxej.pdfIn PDF document text
- https://empezo.xyz/js/ckfinder/userfiles/files/48380443392.pdfIn PDF document text
- http://marchmont.ru/imgs/file/8833286468.pdfIn PDF document text
- http://oiseau-bleu-morzine.com/userfiles/file/94817230374.pdfIn PDF document text
- https://printsolutions.ro/uploads/wysiwyg/files/73307998204.pdfIn PDF document text
- http://bongoes62.dk/userfiles/file/dorevigumigumoxiwepuve.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/aa816cb3d19ce52123ef9fe255c29ae5/57138493015.pdfIn PDF document text
- https://designmaster.in/scgtest/eec-new/codelibrary/ckeditor/ckfinder/userfiles/files/duseka.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/95479269429.pdfIn PDF document text
- http://surinmajestic.com/phya/ckfinder/userfiles/files/xepakelekasubenitemubum.pdfIn PDF document text
- https://pui-vital.ro/msg_media/file/97617521216.pdfIn PDF document text
- http://vning.net/filespath/files/20210906190351.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=android+modify+apkPDF 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_off0000b1ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1EF | 14524 bytes |
SHA-256: e6a07df92a5479c0060efbda8299867702ce50d8b09beaed5dc74735bf8715d9 |
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font_01_sfnt_off0000d6a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eeb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB9 | 10404 bytes |
SHA-256: 5f08ff39073ec459d0483c05940cc912a063fe6a7fff9c51f7156be448de58fa |
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