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. The file also features a large number of external URLs, many of which are hosted on disposable domains and appear to be part of a link farm, suggesting a phishing or malware distribution campaign. ClamAV and ML classifiers strongly indicate maliciousness, consistent with a phishing or trojan delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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 https://medvor.ru/uplcv?utm_term=photo+recovery+apk+without+root PDF link annotation
- https://creteservices.com/FCKeditor/userimages/file/82171921397.pdfIn PDF document text
- http://divapharma.com/uploaded/file/bumop.pdfIn PDF document text
- https://bdblue.com/ckfinder/userfiles/files/63851573960.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/68708619659.pdfIn PDF document text
- http://jiendurancecoaching.com/ckfinder/userfiles/files/96064829468.pdfIn PDF document text
- https://gulfsupremesa.com/ckfinder/userfiles/files/sanunuja.pdfIn PDF document text
- http://archetipoingegneria.it/userfiles/files/bilafufataki.pdfIn PDF document text
- https://www.food-equipment-store.com/fckeditor/uploads/file/vimadowo.pdfIn PDF document text
- https://bnovum.hu/downloads/daxugafojejikada.pdfIn PDF document text
- http://ramenzoni.eu/userfiles/files/bijifibeduviluzez.pdfIn PDF document text
- http://aiswaryamatrimonials.com/fck_uploads/file/rezenopusebep.pdfIn PDF document text
- http://happinessgown.com/upload/users/files/34730663412.pdfIn PDF document text
- http://anapharmata.hu/ckfinder/core/connector/php/files/tewibinowavokojo.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe3131cf5f---46806555007.pdfIn PDF document text
- http://expresskaliski.info/file/sewova.pdfIn PDF document text
- https://windscrm.net/files/file/vozojar.pdfIn PDF document text
- https://chezgregoire.fr/userfiles/31728378891.pdfIn PDF document text
- http://offerparts.com/upload/files/vedewoj.pdfIn PDF document text
- http://nikkenj.com/userfiles/file/xosepatodapovojikemajar.pdfIn PDF document text
- https://sogelec-eng.com/files/ckfinder/files/57593537590.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210907080520.pdfIn PDF document text
- http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/wevikutenebiloxatavod.pdfIn PDF document text
- http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/31899155807.pdfIn PDF document text
- http://yksskj.com/ckfinder/userfiles/files/9549710502.pdfIn PDF document text
- http://hichipper.com/hichipper/uploadfile/file/2021090910584973499.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_off0000c19d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC19D | 10612 bytes |
SHA-256: bc87c9ceb4e71d74ed727ec05391d8742a710eb3c401468e82cc0b9c60cda97f |
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font_01_sfnt_off0000da28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA28 | 16896 bytes |
SHA-256: 60865c03f66d789dcab56a1287d3ebc23570c29fddb4cb0c1517df925d103414 |
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font_02_sfnt_off00010523.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10523 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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