MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external resources, with a high-confidence heuristic identifying a link to an algorithmically-generated URL on disposable hosting. This suggests the document is designed to redirect users to malicious content, likely a phishing lure or a downloader. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://www.bufolari.com/public/immagini/file/86280456719.pdf In PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/o0h6o8hgh3oj1atijolac1anim/bepinola.pdfIn PDF document text
- https://sierrainstruments.cn/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/59483210644.pdfIn PDF document text
- https://www.jdconstinc.com/ckfinder/userfiles/files/35676944717.pdfIn PDF document text
- http://dkyangmei.com/uploadfile/file/2021090811355573499.pdfIn PDF document text
- https://www.tcf.gov.tr/ckfinder/userfiles/files/35552229872.pdfIn PDF document text
- https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/22232491218.pdfIn PDF document text
- http://maryalo.com/userData/board/file/46210141272.pdfIn PDF document text
- http://agriturismoilnoceto.com/userfiles/files/loterufakuguvutodalafanuw.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1613f6758461b3---lolagedabirika.pdfIn PDF document text
- https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/21917098224.pdfIn PDF document text
- http://erpsamik.com/ckfinder/userfiles/files/sopurekexubisodivajope.pdfIn PDF document text
- https://sapsda.com/SapmaUserfiles/file/vazubugugawapu.pdfIn PDF document text
- http://antonio-pelella.eu/userfiles/files/natuxironoxonopuginovemor.pdfIn PDF document text
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/34118650260.pdfIn PDF document text
- http://aloeverajuice.cz/files/file/86168870038.pdfIn PDF document text
- https://maintogelonline2.bet/contents/files/3902329782.pdfIn PDF document text
- http://educasters.co/ckfinder/userfiles/files/54493404659.pdfIn PDF document text
- http://xn--nellieskche-0hb.de/userfiles/file/67275148088.pdfIn PDF document text
- https://netpage.info/userfiles/file/zupifivazuwupipose.pdfIn PDF document text
- http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/kejutipibituxe.pdfIn PDF document text
- http://czerwoneiczarne.pl/files/file/xoxadorepexodifuwe.pdfIn PDF document text
- http://veterinarioassociatopacinidallatorre.eu/userfiles/files/nuzemu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+download+mms+on+wifi+androidPDF 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_off0000ae84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE84 | 14284 bytes |
SHA-256: e2f2a589c4a1b8851b5f9312856ebaf5a2460813bda6f02153c2355adba92482 |
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font_01_sfnt_off0000d251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD251 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ea68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA68 | 10460 bytes |
SHA-256: 19cc983ad6827c3aa955e1a2ba8878f77efefa157f57b4d0f1db3442e1ece08b |
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