MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF is part of a link farm designed to obscure the true destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://irlanc.ru/uplcv?utm_term=android+core+apps PDF link annotation
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613392979d1b2---noboje.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161397f3ebe182---lijuvo.pdfIn PDF document text
- http://1night2daytour.com/ckupload/files/4441103315.pdfIn PDF document text
- https://emotionalgift.com/ckfinder/userfiles/files/90969573603.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/ap2kggbq71esi3e9obo01v4ban/22116551044.pdfIn PDF document text
- https://stpm-sa.com/userfiles/file/50338432444.pdfIn PDF document text
- http://kruengrangthai.com/files/files/dojegobufedoximalejowa.pdfIn PDF document text
- http://www.mattig-accounting.bg/fisiere/file/pewefovogivete.pdfIn PDF document text
- http://wmsone.com/eimages/file/7800135727.pdfIn PDF document text
- http://vector-mebel.ru/uploads/files/rerirekuwopotopuxidijab.pdfIn PDF document text
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133d6a7254a8---20341060617.pdfIn PDF document text
- http://zamgph.com/FCKeditor/editor/filemanager/connectors/php/uploads/file/070450116334.pdfIn PDF document text
- http://njchemland.com/upload/files/doxujusuzolaxeposiv.pdfIn PDF document text
- http://dtmaso.com/public_html/Imagens/file/siwuton.pdfIn PDF document text
- https://styliststudios.com/imagesTE/file/92474350897.pdfIn PDF document text
- https://vinniescustoms.com/userfiles/files/26686460310.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612edb46007a0---22256145636.pdfIn PDF document text
- http://htwy.com/upload/file/xikufives.pdfIn PDF document text
- https://dalnoboy.com/data/filestorage/upload/files/6802989545.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed230267e9---90912483487.pdfIn PDF document text
- http://czernavendeghaz.hu/admin1/file/gizafimebebewid.pdfIn PDF document text
- https://luatkhangthai.vn/upload/fck/file/60440566783.pdfIn PDF document text
- http://www.sport-konyv.hu/userfiles/file/nemopepazuxusibadawodi.pdfIn PDF document text
- http://stlnsk.ru/uploads/file/putugudixow.pdfIn PDF document text
- http://afro-safari.com/upload/files/55043546886.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_off000103af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AF | 10344 bytes |
SHA-256: abb85888b1c6e0c3a53307d943b93ef41bbe38b78236982454a7aa10accef94c |
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font_01_sfnt_off00011b1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B1A | 17808 bytes |
SHA-256: 83f23cdaf8524bccac387f19b8f8b4dc481a782f890fe43383385be94b35532c |
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font_02_sfnt_off0001490b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1490B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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