MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, pointing to multiple URLs hosted on compromised WordPress sites and disposable domains, suggesting a phishing or malware distribution scheme. The embedded URLs and the nature of the hosting indicate an attempt to lure users to external, untrusted content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160862564318d3---9023662963.pdf
- http://vssteel1999.com/ckeditor/userfiles/files/88908727762.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076bbf4b322a---20658728406.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/ouc5l4u349uf4vmemgjfjkflca/lipegiwewu.pdf
- http://scouttautomotive.com/editor_uploads/system/files/61505914605.pdf
- http://felixefontesadvogados.com.br/ckfinder/userfiles/files/59625375096.pdf
- http://nuestratierrapremios.com/campannas/file/zazexafigetaweneduxo.pdf
- http://ediljolli.com/userfiles/files/65018258837.pdf
- http://scales-center.com/shop/fck_file/file/51360674698.pdf
- https://totalmediasolutions.ae/ckfinder/userfiles/files/84050903206.pdf
- http://www.neoneophytou.com/ckfinder/userfiles/files/43663759050.pdf
- https://zippy-inc.com/app/webroot/userfiles/files/76657121448.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160da3e641f977---rozimijasupifu.pdf
- http://songhandiban.com/uploadfile/file/2021082112461073499.pdf
- https://digireg.cn/upload/79439780198.pdf
- https://investmentskillsgroup.com/images/userfiles/file/zotoranamu.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0370c18f5---96912830315.pdf
- http://lagunarent.lt/ckfinder/userfiles/files/sonusozegutivomajoz.pdf
- https://tasivn.com/upload/ck/files/venup.pdf
- http://asfus.net/virgsurv/userfiles/file/35288233877.pdf
- https://hostingalani.com/calisma2/files/uploads/78488217441.pdf
- http://alfavit.tv/userfiles/file/26977584342.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607586960cb8c---89880045801.pdf
- http://dso-fuzine.si/docs/94152437972.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16112ca38d3fa5---62566279647.pdf
- http://www.logomarcanet.com/userfiles/file/58203689266.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=claiming+children+on+taxes
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e160.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE160 | 16792 bytes |
font_01_sfnt_off0000f972.binb95fe481b796e109d32dccc36cdbe69e7fac64c3977f1f449779414fd8cc0357 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF972 | 16972 bytes |
font_02_sfnt_off0001253f.bin263c177cc00eec950c03580b2fced5b2b9c712275ac4c9d40d2fdbfb7135f5b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253F | 10952 bytes |
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