MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many of which point to other PDF files, suggesting a link farm or redirection scheme. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting for a large number of links, which is common in phishing or malware distribution campaigns. No scripts were extracted, but the overall structure and URL patterns point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
Heuristics 5
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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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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 http://fullx.net/files/gukamidixuboz.pdf In PDF document text
- http://kcemsp.org/upload/editor/file/najunobeb.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141d1fb05c6d---dusatetobunenaretapidami.pdfIn PDF document text
- https://digicpictures.com/downloads/14408799454.pdfIn PDF document text
- http://gabinetortodontyczny.eu/userfiles/file/tojinuxun.pdfIn PDF document text
- http://knuhpharm.kr/userfiles/file/20210910145402.pdfIn PDF document text
- http://abpjse.news-read.com/upload/files/97549504805.pdfIn PDF document text
- http://unsersohn.ch/images/file/tekip.pdfIn PDF document text
- http://thetsaban3watnuea.com/UserFiles/file/fesexaxomufularevov.pdfIn PDF document text
- https://yarpaket.ru/userfiles/file/66364577222.pdfIn PDF document text
- http://vtaky.sk/media/file/ludazovunigu.pdfIn PDF document text
- http://tonioloclaudio.it/userfiles/files/15774938271.pdfIn PDF document text
- https://zooiguana.pl/app/webroot/media/files/mazirugibib.pdfIn PDF document text
- http://baovephuongtroi.com/vietkiendo/upload/file/79691914559.pdfIn PDF document text
- http://huanghels.com/filespath/files/20210910131658.pdfIn PDF document text
- http://geofer.eu/userfiles/files/68803846970.pdfIn PDF document text
- http://jedwines.com/cmsCart/upload/file/63836657922.pdfIn PDF document text
- http://fincasotilloviejo.es/files/sotillo/_repo/file/57319604757.pdfIn PDF document text
- http://deshdunya.com/blogimage/file/12458143982.pdfIn PDF document text
- https://eprobatdz.com/ckfinder/userfiles/files/lexevumixodofu.pdfIn PDF document text
- http://woodbridgeabw.com/uploads/files/77662745027.pdfIn PDF document text
- http://mwflower.com/upimagesfile///84568569717.pdfIn PDF document text
- http://csc0851.com/userfiles/file/20210909061619_cf5190.pdfIn PDF document text
- http://honeycontacts.com/uploades/userfiles/file/9160719276.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/2dd56d28c19c76682389d5f81141946c/56831034467.pdfIn PDF document text
- https://www.studiorosaliabusco.it/ckfinder/userfiles/files/lizefonobojolupozap.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=nouns+that+start+with+a+for+kindergartenPDF 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_off0000b457.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB457 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC69 | 16152 bytes |
SHA-256: a79b131641f40cd88c29d06f4d060203e52739bf7dda030ee9a5fcf3fd022fcc |
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font_02_sfnt_off0000f5d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D3 | 10844 bytes |
SHA-256: 1ef39039272721ae1e7b66a7541123bb8d7d9c2ac030dada444906313396840f |
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