MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to external sites, some of which are hosted on compromised WordPress installations or disposable domains. The 'utm_term' parameter in some URLs suggests a potential phishing lure related to 'office 365'. The primary function appears to be redirecting users to potentially malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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=office+365+office+portal PDF link annotation
- https://orcasproje.com/userfiles/file/1907556941.pdfIn PDF document text
- https://kozlovka.mebel18.com/uploads/files/wegadusolozopubuj.pdfIn PDF document text
- http://www.evisiontiendaonline.com/ckfinder/userfiles/files/gimikejomefinozasutum.pdfIn PDF document text
- https://mudraconsultancy.com/uploads/files/86239161958.pdfIn PDF document text
- https://cupanghitam.com/contents/files/fupufarimofu.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/3150116631.pdfIn PDF document text
- https://mobile-translator.eu/app/webroot/media/files/kewewukuzelepos.pdfIn PDF document text
- https://indiachristian.org/uploads/files/petivowemovu.pdfIn PDF document text
- http://cukrarska-vyroba.cz/UserFiles/File/jawulawezopijiziti.pdfIn PDF document text
- http://bephoangdung.vn/uploads/ckfinder/files/92287452838.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/6c4d9fd0f3663825087924b21debb557/2669551337.pdfIn PDF document text
- http://locum-system.pl/userfiles/file/mizovezisejufigisud.pdfIn PDF document text
- http://dhf-china.com/d/files/divarotudejarakar.pdfIn PDF document text
- https://myreply.mobi/snappshott/editor//file/pokofigugolup.pdfIn PDF document text
- http://gzhangqin.com/uploadfile/files/zugadekokeweku.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613536ef020d6---fapebi.pdfIn PDF document text
- https://ateliersmq.com/pevron/www/img/file/65284620624.pdfIn PDF document text
- http://zzquansu.cn/d/files/14164184556.pdfIn PDF document text
- https://moveo-sport.pl/userfiles/file/kiwujofogujozo.pdfIn PDF document text
- https://apoiotelecom.com/imagens/img_fckeditor/file/88831065414.pdfIn PDF document text
- https://www.leasing.net.in/ckfinder/userfiles/files/19385150088.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/n0i0mii2fju8mrmccg93hboj44/46035736869.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16134a65a216f5---javixivekunojin.pdfIn PDF document text
- https://asmitahrgroup.com/ckfinder/userfiles/files/42095432849.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_off0000d5a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5A9 | 10700 bytes |
SHA-256: 38d5b36b1b03292501541fb901e83d8c3263263a1fed211a6260d76401771549 |
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font_01_sfnt_off0000ee5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE5E | 18576 bytes |
SHA-256: 99b813ccf34d3ddff49547f1c850a30377baa3b45b4bb8a82a3b6e5e58ff7012 |
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font_02_sfnt_off00011ef7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EF7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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