MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or are part of a link farm designed to manipulate search engine results. The primary function appears to be directing users to potentially malicious or deceptive content through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://unchiulmihai.ro/files/fckeditor/file/24869372216.pdf In PDF document text
- https://ocw.tw/uploads/files/38572122202.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/73ug4bag9335jjncturovirbil/lokuxedoxezape.pdfIn PDF document text
- http://deeringbayrealestate.com/userfiles/files/59787901400.pdfIn PDF document text
- https://manorhair.com/uploads/files/202109031329557137.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16140bea061465---55438030124.pdfIn PDF document text
- http://35ct1.com/images/ckImageFiles/files/44205569623.pdfIn PDF document text
- http://villahetzwartepaard.nl/survey/userfiles/files/davezoropa.pdfIn PDF document text
- https://sensiblemachines.com/ckfinder/core/connector/php/files/99131015758.pdfIn PDF document text
- https://receptabc.hu/images_banner/files/9022435923.pdfIn PDF document text
- https://tapuionoticias.com/ckfinder/files/44294188225.pdfIn PDF document text
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/oo6p4v5m71g29lqffodvov8dp1/98310909157.pdfIn PDF document text
- https://bela.geekers.tw/upload/file_folder/file/bupozadafuxafogivugixeb.pdfIn PDF document text
- https://calienglish.com/ckfinder/images_store/files/4844892890.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613c34c79577a---zujokupi.pdfIn PDF document text
- http://nanouklid.cz/upload/file/1914486236.pdfIn PDF document text
- http://e-junghan.com/userData/board/file/ruwajetajiba.pdfIn PDF document text
- https://gentrilieu.vn/userfiles/file/19590124471.pdfIn PDF document text
- https://abbma.in/admin/uploads/file/18368408159.pdfIn PDF document text
- http://teplo76.ru/uploads/file/sopikiwisotupaveto.pdfIn PDF document text
- https://spotiverify.com/ci/userfiles/files/69592955002.pdfIn PDF document text
- http://watthaistuttgart.de/userfiles/file/17394006666.pdfIn PDF document text
- http://simp-q.ru/userfiles/file/jetuk.pdfIn PDF document text
- http://musorcentrum.hu/files/article/file/50585304267.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=after+movie+2019+full+movie+watch+onlinePDF 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_off0000c8b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8B5 | 21004 bytes |
SHA-256: f284dd4b9af9f939fe085ed66743a4b31a4873ef54b06c6d1594c206c896a41e |
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font_01_sfnt_off0000ff6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF6E | 11128 bytes |
SHA-256: a4f44393925dc75d11e3bec39dc21306fe327a1456cef0ac02324bc1c1f9bc60 |
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font_02_sfnt_off00011968.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11968 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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