MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document's body text, though partially corrupted, suggests a lure related to document management. Heuristics indicate the presence of numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution via these external links.
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://irlanc.ru/uplcv?utm_term=how+to+save+scanned+documents+as+one+pdf+file PDF link annotation
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609171409c327---62679760769.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/jowejatigodulokuxipup.pdfIn PDF document text
- http://koslita.eu/ckfinder/userfiles/files/nubexun.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa531c4dceb---magovukiligog.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608255751240d---56971970020.pdfIn PDF document text
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/2d0e1f2e45560907127e4cc582e34344/juvufepemako.pdfIn PDF document text
- http://alkanboya.com/files/file/%5C/80342807097.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/36166439793.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c46e2cdcc89---ginufaralijitudewaba.pdfIn PDF document text
- http://debandhelder.nl/ckfinder/userfiles/files/xuxetibozanejopazujep.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/7qde3hgkbchcv2kgco8455fed3/kovatefumopif.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a61c8d67f12---42979742726.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/67828411760.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160a667449bb8e---55018938715.pdfIn PDF document text
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/bntrrt63cgka3k998bqcigug1c/70982993963.pdfIn PDF document text
- https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/d2dea8934d8fe0b6609bb6feeb40a4b0/57465402188.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_off0000c162.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC162 | 5320 bytes |
SHA-256: af268b23234c4d5d83ec4d612469c6586e068909f94e6e5c34a5beb82bcaec43 |
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font_01_sfnt_off0000d381.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD381 | 10152 bytes |
SHA-256: 6984fbb3d142b4a6712b15a291374275d21c3e7878b17621f61be80c06d2dc74 |
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