MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF 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, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous disposable domains and UTM parameters suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://coretry.ru/uplcv?utm_term=fitbit+charge+2+manual+reset PDF link annotation
- https://makiriaszto.hu/ckfinder/userfiles/files/11800422982.pdfIn PDF document text
- http://zjgjqmr.com/v15/Upload/file/2021826163754339.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/cpn5ilmt48eoiisikr7h5fit45/32410810572.pdfIn PDF document text
- https://ezgoe.com/10005001208290177/ckfinder/userfiles/files/41324030626.pdfIn PDF document text
- http://kingsfinancialconsulting.com/userfiles/file/64915104085.pdfIn PDF document text
- http://yngc.ru/admin/ckfinder/userfiles/files/kusovanadewotuviweful.pdfIn PDF document text
- http://smartarts.bg/userfiles/file/1891342331.pdfIn PDF document text
- http://dvg.asia/ckfinder/uploadfiles/files/36327647746.pdfIn PDF document text
- http://cdn.eagle.mn/uploads/userfiles/files/fagepofizovevir.pdfIn PDF document text
- https://netwindowvn.com/uploads/userfiles/file/85517583202.pdfIn PDF document text
- http://ayurvedicclinic.org/userfiles/file/92075767372.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7032b1996---fepakovepokodoxofegokapuw.pdfIn PDF document text
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e0c045c2322079e00a3baa28dced5ba6/xuxipifir.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/hugun2jtomq31tt3fouedna8uf/57747085264.pdfIn PDF document text
- http://jamesirvinewedding.com/clients/f/f9/f947a18657f5d77a8fcd192ffd4ccf25/File/26553020138.pdfIn PDF document text
- https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/regarexexutirikes.pdfIn PDF document text
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/9285179cbfa1d2f6b3d5c6aa1bc301c8/19675208159.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b63f09b2d19---53949598381.pdfIn PDF document text
- https://searchlink.org/userfiles//file/xameweguwiwoburejosu.pdfIn PDF document text
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/tusubenidasulovevisug.pdfIn PDF document text
- http://abroadster.com/files/banopenusodigimilafaloxid.pdfIn PDF document text
- http://sbnjl.com/userfiles/files/moxarexatelevuxivunek.pdfIn PDF document text
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/s7t8cn2pbsg8af4fpfei8uhe85/55763949666.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/miditewomatavufevozovi.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_off0000e8d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8D2 | 10896 bytes |
SHA-256: d5c5c1fecb41992bbf8e206c5eb58bfca61277480fc170c1527cdd45ae210ace |
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font_01_sfnt_off000101e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E5 | 18092 bytes |
SHA-256: f58f2a2d991dc1427914f63d4ff8fc2d8fc7df959924b328347b5cf969b03fa0 |
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font_02_sfnt_off00013106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13106 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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