MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF document employs social engineering tactics, specifically a lure to install a browser extension or update, which is a common method for credential harvesting or malware installation. The ML classifier and ClamAV detection strongly indicate malicious intent. The document also contains numerous URLs, including one that appears to be a link farm, suggesting it is part of a larger phishing infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://irlanc.ru/uplcv?utm_term=how+to+copy+your+contacts+from+android+to+iphone PDF link annotation
- http://hexindechem.com/upload/files/xemiju.pdfIn PDF document text
- https://bursakaynak.net/userfiles/file/30714568147.pdfIn PDF document text
- http://csaladiegyteruautok.hu/userfiles/files/59198631251.pdfIn PDF document text
- http://wahluenfty.com/userfiles/gudomuset.pdfIn PDF document text
- http://texinpack.com/uploadfile/file///2021090716065147.pdfIn PDF document text
- http://epodhajska.eu/UserFiles/File/17042976289.pdfIn PDF document text
- https://alwaysthesame.pt/site/upload/file/fubukudukada.pdfIn PDF document text
- http://feriaalainversa.com/uploaded/files/lewogo.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/39229959104.pdfIn PDF document text
- https://copperscraphandlers.com/ckfinder/userfiles/files/gokeketeze.pdfIn PDF document text
- http://longarmquiltingacadamy.com/fckeditor/userfiles/file/sibar.pdfIn PDF document text
- http://gaia-onlus.org/userfiles/file/levowapetadulimaxozovojuz.pdfIn PDF document text
- https://beamstraffic.com/amb/userfiles/file/xiramuba.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/puwavoxufesajixelotif.pdfIn PDF document text
- http://neurooperations.com/ckfinder/userfiles/files/jojinotamivobuwegudeg.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161378f10db123---46948566728.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613044b66bcf0---wetedoweta.pdfIn PDF document text
- https://yifff.se/userfiles/file/14135378245.pdfIn PDF document text
- https://puntodeplacer.com/userfiles/file/64601825414.pdfIn PDF document text
- http://valkexclusief.reviews/app/webroot/files/userfiles/files/5292130730.pdfIn PDF document text
- https://adamant54.ru/userfiles/files/31808927361.pdfIn PDF document text
- https://istanbulbalbir.com/upload/ckfinder/files/80394845459.pdfIn PDF document text
- http://vet-arrighicolangelicristilli.eu/userfiles/files/63075452889.pdfIn PDF document text
- http://finadev-groupe.com/userfiles/file/59245759106.pdfIn PDF document text
- http://theclubburger.com/uploads/files/kemozodisafu.pdfIn PDF document text
- 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_off0000da58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA58 | 16916 bytes |
SHA-256: 9c69d951536ec1dffd2bd3202ef2c7fed702ad33243cbdf25a14a8b24368474f |
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font_01_sfnt_off0001061b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1061B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E32 | 11132 bytes |
SHA-256: d3035e456fbf3f123204d2e65f834b1835d3a4a942d960f11044e000454b8fa4 |
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