MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm pointing to multiple compromised websites, suggesting an attempt to distribute malicious content or phish for information. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a deliberate effort to obscure the true destination and leverage compromised infrastructure. The ML classifier and ClamAV detection strongly support a malicious classification, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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://catamma.ru/uplcv?utm_term=ml+diamond+generator+apk+download PDF link annotation
- http://longarmquiltacademy.net/fckeditor/userfiles/file/29906517787.pdfIn PDF document text
- http://www.alexgis.com/siteuploads/editorimg/file/21000260608.pdfIn PDF document text
- https://artenika.pl/fck/file/9080748271.pdfIn PDF document text
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/0c6abed186cbafb35f4472e06c019842/tojaledironaru.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e01f2db71---zizikutezanagubujo.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/e9kkufc7r2o3oehek9911lqgup/2887699105.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b35c53722b4---84802302302.pdfIn PDF document text
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/4e95kls9qudp33uliunelhvsvm/desizesoxiduxavugugib.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/25970744629.pdfIn PDF document text
- http://bpabv.nl/uploadfiles/file/siwemesupex.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24ba598cad---38916185044.pdfIn PDF document text
- http://meruzhankhachatryan.com/app/webroot/files/file/39018877017.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/0kagcc2rltfqssru6ckdj3588b/93622290364.pdfIn PDF document text
- https://abugfreemind.com/userfiles/file/67698020470.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/60cb43d054e27de52aab61ce891b62a9/lusuwilukakivedes.pdfIn PDF document text
- https://seeandhearbetter.ie/img/shop//contents/61815899309.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e44c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44C | 5260 bytes |
SHA-256: e151d2b1d9b7cd149a5b8a5abd2a4b1a4baac517ccfc1788482e0c00bffb91ac |
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font_01_sfnt_off0000f637.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF637 | 11312 bytes |
SHA-256: 0d19e951e7e74b7f46b3987cdfb04b8b2adb7f36b6ab1eb3303d7ca6e7abf2b3 |
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