MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1105 Ingress Tool Transfer
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection to malicious sites or the download of further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://queure.ru/uplcv?utm_term=contra+apk+download+for+android PDF link annotation
- http://sahcarpets.com/userfiles/file/26978338784.pdfIn PDF document text
- http://hk-sai.com/ckfinder/userfiles/files/nivufuwisezuzurijizerozop.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/51052705251.pdfIn PDF document text
- https://konferencii.ru/js/ckfinder/userfiles/files/23596415700.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613034377289e---nesotak.pdfIn PDF document text
- http://www.miyadenthai.com/image/upload/File/36043276662.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210906075022580.pdfIn PDF document text
- https://rts-wm.com/ckfinder/userfiles/files/puselazobenivubufek.pdfIn PDF document text
- http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/41925272784.pdfIn PDF document text
- https://institut-arabe.org/ckfinder/userfiles/files/jiwawuwiximewimimuramoka.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/zidakejivutimiju.pdfIn PDF document text
- http://anchor-m.com/js/upload/files/40653144844.pdfIn PDF document text
- http://signauction.net/userfiles/file/20563562271.pdfIn PDF document text
- https://people11people.gr/uploads/File/50928433799.pdfIn PDF document text
- http://ylplj.com/ckfinder/userfiles/files/28038502234.pdfIn PDF document text
- https://rivieresoceanie.com/userfiles/file/nobamutalorixowelogojojis.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/18813736397.pdfIn PDF document text
- http://5thaveseniors.org/userfiles/file/logofigefuwifurivuwetow.pdfIn PDF document text
- http://php-lounge.de/userfiles/file/7367029343.pdfIn PDF document text
- http://rogersdesignhouse.com/uploads/files/60508049862.pdfIn PDF document text
- https://goooinggroup.com/userfiles/files/20210907_182608.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16137ad0def6d8---33267370478.pdfIn PDF document text
- http://dailyxedayhang.com/userfiles/files/27977207572.pdfIn PDF document text
- https://inprovituruguay.com/ckfinder/userfiles/files/wogefozu.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613354646827e---98261796443.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_off0000def3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEF3 | 10400 bytes |
SHA-256: c30dafc030f1fb5179281db19098f336bd5da578ef52c5214d3243c255af342d |
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font_01_sfnt_off0000f6a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6A4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010eb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EB6 | 18328 bytes |
SHA-256: 7afa85d36f4dbbeeef194d9f71d93b265459334e35b36fec2ceb0254802a67e7 |
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