MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised websites, likely intended to trick the user into downloading a password-protected archive. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' strongly suggests this intent. ClamAV detection and ML classification further support its malicious nature. No scripts were extracted, but the overall structure and heuristics indicate a phishing attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://chcial.ru/uplcv?utm_term=aplicacion+para+hacer+notas+en+android PDF link annotation
- http://aloisiquadri.it/userfiles/files/29151099833.pdfIn PDF document text
- https://rux-thai.com/ckfinder/userfiles/files/tuguweveza.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/3ce774849648afc541786a4c01e323e7/nesapinoduwomo.pdfIn PDF document text
- https://imihwa.com/uploads/image/20210912/files/20210912173202.pdfIn PDF document text
- http://rajasthanmetals.com/userfiles/file/41652464288.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/7b1f2c2fd616cde5718c5d24402cc785/4852324761.pdfIn PDF document text
- http://missteenqueenuk.com/userfiles/file/waxunig.pdfIn PDF document text
- http://devveb.net/userfiles/file/92842997493.pdfIn PDF document text
- https://alternativecarrepair.nl/userfiles/file/gejinapibejaze.pdfIn PDF document text
- https://ta-taiwan.com/app/webroot/userfiles/files/98469403028.pdfIn PDF document text
- http://1yunnan.com/ckfinder/userfiles/files/lazekimijemanaduzisiv.pdfIn PDF document text
- https://patc.fr/imagesfile/30825278863.pdfIn PDF document text
- http://sgrappresentanze.eu/userfiles/files/44035817202.pdfIn PDF document text
- http://ministerium.pt/files/darogokubifutisivowed.pdfIn PDF document text
- http://gyermekhaz.hu/Content/site_images/files/40288431891.pdfIn PDF document text
- http://hydrem.ru/images/file/88178496326.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f742c22546---64425578585.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb631009ef---78651000053.pdfIn PDF document text
- https://malinaionescu.ro/userfiles/file/sibuwadotivog.pdfIn PDF document text
- http://geopraxis.it/userfiles/files/54061154096.pdfIn PDF document text
- http://cokhivietuc.webthoidai.com/img-vietuc/files/57459642378.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_off0000e142.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE142 | 19084 bytes |
SHA-256: a5b4448f493520b9c6b6dfd4fb98b273fac00b5042501f16edff416f91a011b9 |
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font_01_sfnt_off00011192.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11192 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000129a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129A9 | 10592 bytes |
SHA-256: 740b5302e34079662271763f69a736e765f5a25b1523d4a2bd8c4d3ab610a9bd |
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