MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm pointing to compromised WordPress uploads and disposable hosting. The embedded URLs suggest a phishing or malware distribution lure, likely intended to trick users into downloading further malicious content or revealing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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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://oniceh.ru/uplcv?utm_term=3d+painting+app+for+android PDF link annotation
- https://hotnewsmd.deca.md/upload/userfiles/files/18265037317.pdfIn PDF document text
- https://sportnazona.bg/f/uploads/files/tojemebuloroj.pdfIn PDF document text
- http://mis.nrru.ac.th/gradjournal/ckfinder/userfiles/files/28123291506.pdfIn PDF document text
- http://jatechkj.pl/upload/fck/file/2831419546.pdfIn PDF document text
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/98897773416.pdfIn PDF document text
- http://mywymc.com/userfiles/file/94997860726.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161391d64df35c---97120878580.pdfIn PDF document text
- http://realcomfort.ru/content/upload/file/xonobeledazi.pdfIn PDF document text
- http://explosivedevices.ru/media/file/30754604957.pdfIn PDF document text
- http://aggengr.com/uploads/CMS/file/zurigoponagikimifenon.pdfIn PDF document text
- http://www.uc-kushiro.net/images/library/File/10801751567.pdfIn PDF document text
- http://theprofitnesstrainers.com/userfiles/file/lulemutebedodavaxutopupez.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec4c9ccbef---mozimoxawitejavixokedibeb.pdfIn PDF document text
- http://clinical-pain.com/pds/userfiles/files/60689518301.pdfIn PDF document text
- http://pokewaveanaheim.com/uploads/files/8288625099.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdad313297---lotet.pdfIn PDF document text
- http://mecateengenharia.com.br/ckfinder/userfiles/files/rileziwipumus.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/ce6807431dd3b8c0ec251d0b46e2a514/sudijopugesunukabel.pdfIn PDF document text
- http://nhatrangpalacehotel.com/app/webroot/upload/files/beposifed.pdfIn PDF document text
- http://www.ktgroup.co.uk/ckfinder/userfiles/files/96783770429.pdfIn PDF document text
- http://telegid.tv/userfiles/file/baxebanevinikumitefe.pdfIn PDF document text
- https://guineaservicesproviders.com/gsp/files/85774760259.pdfIn PDF document text
- https://i-intelli.com/ckfinder/userfiles/files/5674093881.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/d807eed7b92d73389970444cc5cd1ab3/49262704194.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_off0000d479.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD479 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ec90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC90 | 10400 bytes |
SHA-256: 4073d2662f12eec61fd02435bc93d2c79f94f62163a258342b3f88cd87ef0a5b |
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font_02_sfnt_off000103f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103F2 | 17936 bytes |
SHA-256: df15d4d0c24b7f8070c4348e1a0cd747662f5fae14c0dc461dd003ae3fdf382e |
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