MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious intent, including random URL links and being flagged as a link farm on disposable hosting. ClamAV detection and ML classification further support its malicious nature. The presence of a download button lure suggests an attempt to trick the user into downloading a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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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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 http://cu-mbc.com/ckfinder/userfiles/files/fakunuwituluda.pdf In PDF document text
- http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/gagufunanon.pdfIn PDF document text
- https://malmospelmanslag.se/userfiles/file/44614243522.pdfIn PDF document text
- http://flairpens.ru/uploads/files/79804611565.pdfIn PDF document text
- http://ambulatorioveterinariocigliano.com/userfiles/files/95734390256.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/nakabuvubisutafevodewipaj.pdfIn PDF document text
- http://5percent-design-action.com/upload/users/files/27604366795.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/jazetazigurunojuv.pdfIn PDF document text
- http://geasit.it/userfiles/files/44762414880.pdfIn PDF document text
- http://sapientgenerator.ru/files/userfiles/files/tonekude.pdfIn PDF document text
- https://petala.gr/userfiles/file/wabitawiranikunexepomoris.pdfIn PDF document text
- http://liccuza.ro/stiri_files/file/44428011653.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/cb341ec66f1ffeb6849352caa6aeee33/25676561846.pdfIn PDF document text
- http://186086.com/upload/files/17934010527.pdfIn PDF document text
- https://dichvuhappyhouse.com/upload/files/7927983041.pdfIn PDF document text
- https://agencement-menuiserie-var.fr/stockages/files/tozuwimolomejotuzavawera.pdfIn PDF document text
- http://csc0898.com/userfiles/file/20210907014909_vl8vac.pdfIn PDF document text
- http://vigen12.com/userfiles/file/69085647677.pdfIn PDF document text
- http://isystemlab.com/admin/ckfinder/userfiles/files/xirufaduruladokalef.pdfIn PDF document text
- https://masukpt2.com/contents/files/8448567381.pdfIn PDF document text
- http://le-nora.com/userfiles/file/zagunobugadokumipinoliv.pdfIn PDF document text
- https://daulte.com/ckfinder/userfiles/files/68674840737.pdfIn PDF document text
- https://interativacorretora.com/fotosempresa/files/98638158047.pdfIn PDF document text
- http://kxqcgs.net/filespath/files/20210907163842.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=parts+of+speech+in+pdf+downloadPDF 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_off0000d832.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD832 | 10804 bytes |
SHA-256: 9ffee546dd9737594bcfb96c13d29e5f3a3492524a046734bdd19112f32367d0 |
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font_01_sfnt_off0000f119.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF119 | 17628 bytes |
SHA-256: e2ee590a9304420669f50f3393df448c961918a7a7001b1a257c81a0a04dc2a7 |
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font_02_sfnt_off00011ec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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