MALICIOUS
86
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was identified as malicious by an ML classifier and exhibits characteristics of a phishing lure, specifically an image-only document designed to trick users into clicking a link. Multiple external URIs were found, many hosted on disposable domains, suggesting a link farm used for redirection. While no scripts were directly extracted, the PDF structure and heuristic firings strongly indicate an attempt to lead the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://mzch.pl/userfiles/file/41292796286.pdf In PDF document text
- http://czechnews.cz/userfiles/files/21668159500.pdfIn PDF document text
- http://vishwkarmaenterprises.com/webroot/img/userfiles/files/28240306832.pdfIn PDF document text
- http://longarmquiltacademy.com/fckeditor/userfiles/file/81943105331.pdfIn PDF document text
- http://breakevenpoint.pl/uploads/editor/file/simodizakebupumamenoxizup.pdfIn PDF document text
- https://weeb.nu/userfiles/file/wevegogur.pdfIn PDF document text
- https://officialbacknumber.org/editor_up/88259802311.pdfIn PDF document text
- https://planningpvedh.nl/ckfinder/userfiles/files/megevuvevo.pdfIn PDF document text
- http://harekatmemuru.com/images/Media/files/25723461420.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/7268273098.pdfIn PDF document text
- http://esangsok.com/upfile/files/35966785947.pdfIn PDF document text
- http://yunnanyingxiang.com/ckfinder/userfiles/files/36264049187.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/161508bc060678---batusisiremoxurudofarovu.pdfIn PDF document text
- http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/83671866507.pdfIn PDF document text
- http://ricettebiagi.it/uploads/assets/file/boviposef.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf0487138e---lizomipiximoxitanudap.pdfIn PDF document text
- https://holcom-solar.com/webroot/img/files/15017182934.pdfIn PDF document text
- https://cuacuonbentre.com/upload/files/silunil.pdfIn PDF document text
- https://feniks9.ru/ckfinder/userfiles/files/60524958749.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/53758768644.pdfIn PDF document text
- https://cityface.cz/res/file/78639271117.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=vidmate+downloader+originalPDF 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_off0000aba7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABA7 | 10476 bytes |
SHA-256: e0053425a2991f6ce698cccc16f9cc92a10e4d2dff9403262151f70b731a0d6a |
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font_01_sfnt_off0000c338.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC338 | 14192 bytes |
SHA-256: d65ba939105540f759da1bdd5c337c258838485491c1d0963e6e47063c54256a |
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font_02_sfnt_off0000e6d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6D8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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