MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, exhibiting characteristics of phishing and social engineering. It contains multiple external links, some pointing to potentially disposable hosting, and employs lures such as a download button and a browser extension installation prompt. These elements strongly suggest an attempt to trick the user into executing malicious content or revealing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.ijestr.com/ckfinder/userfiles/files/komajijekuwimevuwata.pdf In PDF document text
- http://matras-devison.ru/upload/file/9044833412.pdfIn PDF document text
- http://bagiez.de/userfiles/file/42636369087.pdfIn PDF document text
- https://isleo.com/i_photos/file/393146512.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-6/20210906062636426920.pdfIn PDF document text
- http://www.look4job.gr/images/_user_na/file/6574574515.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/kemolegeli.pdfIn PDF document text
- https://www.moxiclear.com.au/application/third_party/ckfinder/userfiles/files/bexaweweninesuleriwijizo.pdfIn PDF document text
- http://all-premium.com/user_file/files/54870226968.pdfIn PDF document text
- https://duhocblueocean.vn/ckfinder/userfiles/files/serikugejebev.pdfIn PDF document text
- http://kovacsoltvaskerites.hu/images/file/vudobepasezavexi.pdfIn PDF document text
- http://studiotecnicopetrillo.eu/userfiles/files/27456226644.pdfIn PDF document text
- https://12shio4.com/contents/files/58338281152.pdfIn PDF document text
- http://druckmaschinenservice.com/uploads/fce/files/janibafibagizelat.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/a2cad04f617f2f72abc78b2491721aec/wavaw.pdfIn PDF document text
- http://jaqalsports.com/files/file/90439606967.pdfIn PDF document text
- https://culturasiapamplona.com/guiarte_userfiles/files/18875031202.pdfIn PDF document text
- http://casadiriposomarsala.it/userfiles/files/winevidewifudipufomisore.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139259c5bcef---lesapomugazadov.pdfIn PDF document text
- http://novastal.pl/userfiles/file/32848603467.pdfIn PDF document text
- http://romengo.com/ckfinder/userfiles/files/jolizubusoluvoforu.pdfIn PDF document text
- https://cooperspick.com/files/jadiwosisamej.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+to+get+adblock+on+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_off0000d2b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2B1 | 18108 bytes |
SHA-256: 4b963a50c70b0ee7c4d127cd3543d13b8122e77adc58f4581183ab023619e57d |
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font_01_sfnt_off00010227.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10227 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A3E | 10684 bytes |
SHA-256: f725db12ad68c6871879ba20da92ca3099d91d197e1576764a82d2d7fb6878ee |
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