MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. Heuristics indicate it functions as a link farm and contains a callback phishing lure, prompting users to call a phone number for a fake issue. While no scripts were extracted, the PDF structure and URL patterns suggest it is designed to deceive users into contacting malicious actors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://gonguyenkhoi.vn/upload/files/malivuvujosomopizijosu.pdf In PDF document text
- http://parejalecaros.com/adjunto/upload/fck/files/nizivoretog.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/a01edff02ca7993536a1caadef4be192/67507782752.pdfIn PDF document text
- https://www.acta-mobilier.fr/ckfinder/userfiles/files/vivasejubugugitaxebakotug.pdfIn PDF document text
- https://simpangkanan.com/contents/files/vifagujapariredu.pdfIn PDF document text
- http://classicalgardenfountains.com/uplds/file/54307073652.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/2553038901.pdfIn PDF document text
- https://sedefartphotography.com/resimler/files/47010003158.pdfIn PDF document text
- http://secoinblock.com/upload/files/68185742850.pdfIn PDF document text
- http://zenkatsu.dk/files/jepepobipizowujazawij.pdfIn PDF document text
- http://ozdesignhouse.com/app/webroot/uploads/files/mubarufowigubegudi.pdfIn PDF document text
- http://sashtraayurveda.com/ckfinder/userfiles/files/24207379682.pdfIn PDF document text
- http://szyqjsj.com/UploadFile/file/20210907104551103.pdfIn PDF document text
- http://www.biosafety.biz/ckfinder/userfiles/files/tiladusavejazura.pdfIn PDF document text
- https://zlataraburmevuckovic.com/files/2619220455.pdfIn PDF document text
- http://www.firstpages.eu/app/webroot/files/userfiles/files/dilujatavolepo.pdfIn PDF document text
- http://antonioruizabogados.es/userfiles/file/11557981472.pdfIn PDF document text
- http://mfo-fond.ru/ckeditor/ckfinder/userfiles/Images/files/jakijozuroruxixere.pdfIn PDF document text
- https://cvssteelex.com/ckfinder/userfiles/files/90783503509.pdfIn PDF document text
- http://esipro.fr/userfiles/file/23383524732.pdfIn PDF document text
- http://elpijisystem.com/file/62374321324.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/30166677339.pdfIn PDF document text
- http://jmvlpslimited.com/ci/userfiles/files/76089750526.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdd59f1bba---20431183082.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=tenses+exercise+for+class+4PDF 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_off00010aa6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AA6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000122bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122BD | 10372 bytes |
SHA-256: 51d996a644c9a1e6e334173fd0f1183d9f2a184566ee1bbfeb43c2934abb854d |
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font_02_sfnt_off00013a5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A5F | 18704 bytes |
SHA-256: 4e4e7daecb7278b9efb4e6d615fb61abe062f6d70bef19b8fcb36b1ed09feefb |
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