MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The document body is unreadable, but the presence of numerous URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 http://netart.hu/userfiles/file/nevaneworonuvimuzawefur.pdf In PDF document text
- http://sahcarpets.com/userfiles/file/15642038868.pdfIn PDF document text
- http://damutech.kz/upload/2021/09files/2109280253216185207hxw6.pdfIn PDF document text
- https://olterus.info/contents/files/65303938294.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614223bbb995d---dejixajonubiwapozesi.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/gonunibido.pdfIn PDF document text
- http://masan315.net/board/imagefile/file/25582839558.pdfIn PDF document text
- http://willowslakerhea.org/userimages/62949732979.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141dae22ec3b---24253461701.pdfIn PDF document text
- https://mywayrtk.com/userfiles/file/nopurizi.pdfIn PDF document text
- https://skl.deindrukdemo.nl/upload/files/zafaf.pdfIn PDF document text
- https://limblength-sldf.com/userfiles/file/tajipunesajef.pdfIn PDF document text
- http://khachsanmyngoc.com/upload/files/basovelogarefi.pdfIn PDF document text
- http://tdvvietnam.vn/webroot/img/files/wosobodebiforatowadumeva.pdfIn PDF document text
- https://nacituran.com/userfiles/file/25789477465.pdfIn PDF document text
- https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/77942307116.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/0cef71568da562ba6e1dd4be3a5fa78c/17653249049.pdfIn PDF document text
- http://asupuro.com/upload/save_image/files/66102553148.pdfIn PDF document text
- http://avtokit116.ru/!upload/files/66368702482.pdfIn PDF document text
- https://stara.harius.pl/app/webroot/media/files/filaratug.pdfIn PDF document text
- http://carrozzeriardue.it/userfiles/files/28638898037.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=streaming+the+walking+dead+season+4PDF 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_off0000ada2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADA2 | 11024 bytes |
SHA-256: b854e2e65eff82f0181518fb02d03c5d28027d00fe8538afd099b4b9a0fe62df |
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font_01_sfnt_off0000c6e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6E9 | 16380 bytes |
SHA-256: 27d2e64a22d5a82f5ae25989e5c45a7c9c271878b318f4fefb1c6bbc971ddf7e |
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font_02_sfnt_off0000f0c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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