MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics indicate the document employs a social-engineering lure, prompting the user to install a browser extension or update, which is a common method for malware installation. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs suggest an attempt to download and execute a malicious payload.
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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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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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://cottingham-group.com/cufiles/files/gasuxilepeg.pdf In PDF document text
- http://danguykhoidoanhnghiephp.vn/Upload/files/xalosikon.pdfIn PDF document text
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/dazegizeg.pdfIn PDF document text
- https://sharedsynergy.com/userfiles/file/xefetekigotuj.pdfIn PDF document text
- https://asi-filter.pl/files/file/rarelufefagiwelerasigeru.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/88056564817.pdfIn PDF document text
- http://kiiga.ru/userfiles/file/78153188597.pdfIn PDF document text
- http://mexxeopaint.com/upload/files/73193661864.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/xowimu.pdfIn PDF document text
- https://artistprasanna.com/userfiles/file/judofeveg.pdfIn PDF document text
- https://wwa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/42740924273.pdfIn PDF document text
- http://medicalproduct.hu/images/files/mafosanekogeledubodezaz.pdfIn PDF document text
- https://vinocastillo.hu/editor_up/fezunan.pdfIn PDF document text
- https://digireg.li/upload/dimadupizolofukasuxifip.pdfIn PDF document text
- http://fuhua.tumujike.com/assets/upload/files/202109120423116296.pdfIn PDF document text
- https://valve-toho.com/userfiles/file/kepazikipobagugijej.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/hdf8c014v1rugtlc0dif3liekf/25065556217.pdfIn PDF document text
- http://palyavalaszto.hu/teszt/upload/file/kukidivafuf.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.info/upload/files/85957358571.pdfIn PDF document text
- http://gelateriacool.it/userfiles/files/zepelubipupuwegixibig.pdfIn PDF document text
- http://domusanna.it/userfiles/files/jinezemikuta.pdfIn PDF document text
- https://thebottombillion.org/business_school/uploads/file/93499722150.pdfIn PDF document text
- https://univerosg.com/ckfinder/userfiles/files/jawinisesepixu.pdfIn PDF document text
- http://huarui-bio.com/upload/files/xasexudusugulomapid.pdfIn PDF document text
- http://mebelhotel.ru/images/news/file/29583615916.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=bypass+google+account+2019+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_off0000dc7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC7C | 18284 bytes |
SHA-256: 240a70495e4f586c5ea1b684268ec296979f82b5ed310a4b8657974af4166e1d |
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font_01_sfnt_off00010b89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B89 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000123a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123A0 | 11312 bytes |
SHA-256: 67753496e35a781177a6f53310aad0f84516cfa3f971c9e5a27c37b51c860258 |
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