MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within PDF documents. The heuristic firings indicate the presence of external URIs and a link farm on disposable hosting, suggesting the document's primary purpose is to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to deliver a phishing payload or further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://boekenwinkelindex.nl/images/uploads/filakin.pdf In PDF document text
- https://rosewoodcity.org/nbloom/fckuploads/file/papaxusap.pdfIn PDF document text
- http://cungcapbaoduongcuanhatban.com/upload/files/keroveloxowedosefinu.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161374c007b94a---62899305401.pdfIn PDF document text
- http://fishtech.org/uploads/userfiles/file/file/95770562655.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/pigegilarijitominutibija.pdfIn PDF document text
- https://www.mds-horizons.com/upload/files/kivowemuza.pdfIn PDF document text
- https://fiscalonline.ro/app/webroot/files/userfiles/files/15669846652.pdfIn PDF document text
- https://adesso-moosburg.de/images/file/nuvuma.pdfIn PDF document text
- http://abwgulfport.com/uploads/files/35774675547.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/f90v3kh9d5l8bgku7ajgmkn3e5/86977003848.pdfIn PDF document text
- https://kurashi-kyoiku.com/cms/dat/upimg/file/20890777652.pdfIn PDF document text
- http://chono.mn/uploads/userfiles/files/82559353819.pdfIn PDF document text
- http://lexuspolymers.com/assets/ckfinder/userfiles/files/14415208407.pdfIn PDF document text
- https://ebooksweb.net/files/file/boroniza.pdfIn PDF document text
- http://czyxchem.com/upload/files/71894137770.pdfIn PDF document text
- http://eros-arena-reutlingen.de/eros/userfiles/file/tenomebekorexewexuti.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/pkoc3i7b3j8dedgscvkgc79834/gunewuwuridavizelugawer.pdfIn PDF document text
- http://mistral-paints.cz/userfiles/files/99175815866.pdfIn PDF document text
- https://srinivasagroup.com/ci/userfiles/files/24421697970.pdfIn PDF document text
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/12873769376.pdfIn PDF document text
- https://aihr-iadh.org/uploads/FCK_files/file/sidomoxiluzibakobir.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/wajexagute.pdfIn PDF document text
- https://haidangpc.com/contents/files/79287744594.pdfIn PDF document text
- https://ruxthai.com/ckfinder/userfiles/files/jozolivupenuvipeziwopolo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=android+10+upgrade+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_off0000b3ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3FF | 10640 bytes |
SHA-256: 0372899b882b2b038dfa19b1c265ec39cf0b6ea4c332aa2992191b40549635aa |
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font_01_sfnt_off0000cc3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC3F | 14212 bytes |
SHA-256: 0a3865d416f517f8547a8540b310e813593b391b6650c9f60fdb755cb9f0aff0 |
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font_02_sfnt_off0000efce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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