MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm for phishing or malware distribution. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics, along with the presence of external URI links, strongly indicate malicious intent. The document body is heavily obfuscated, but the overall structure and heuristic firings point to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://baohanhranghm.com/upload/img/files/59807566669.pdf In PDF document text
- http://iworking.vn/uploads/files/jamiwabakig.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161301142323a0---51782384579.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/ce21c3e53014f9343ba15f87c1976489/1449116354.pdfIn PDF document text
- http://rustproofingottawa.com/userfiles/file/ronab.pdfIn PDF document text
- https://ikuseikyokai.jp/ckmedia//files/kowafilajawuloze.pdfIn PDF document text
- http://medicaldistri.com/ckfinder_files/files/remisisog.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094d99d445a0---suvux.pdfIn PDF document text
- https://webmenuplus.com/images/file/sajuzod.pdfIn PDF document text
- https://mbbs.hr/files/9032729726.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160f6ffe118216---31272864997.pdfIn PDF document text
- https://mzr-avocats.com/buddha/ckfinder/userfiles/files/27861236396.pdfIn PDF document text
- http://geriatriccarenewjersey.com/userfiles/files/59134841413.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608324481a59a---34064475385.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1608322082e73b---xurek.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff8fb4b73e---1589288060.pdfIn PDF document text
- http://flirdining.com/uploads/files/53972107395.pdfIn PDF document text
- http://pcccphucvinh.com/upload/files/tugifegotilevuzemir.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/uoastno8foiggf60k8m6if5677/7392760873.pdfIn PDF document text
- https://tranhtreo.com/images/ckeditor/files/wokimifovoduguzoletuzani.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/nudukutudifelexubox.pdfIn PDF document text
- https://heritagecambodiatravel.com/userfiles/file/ligamivaguwof.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae5bbf9f822---7319186148.pdfIn PDF document text
- https://susta.vn/userfiles/file/puxepigojabikixuwa.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/3f0f3b8811ad42d39f62fb4e30249cc1/23317723729.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=invanz+package+insert+pdfPDF 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_off0000dbf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF6 | 18060 bytes |
SHA-256: b49e6fd73bf4a0b7ed1afab7d14aa0ec0d3890fab9767d6e5c0f116aba311a3a |
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font_01_sfnt_off00010ad1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AD1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000122e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122E8 | 10800 bytes |
SHA-256: f4fe7d3abb6e3ea9468c2f0437620219e6e956f7be5ae864716d3690a183bdbe |
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