MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other domains, likely serving as a distribution point for phishing or malware. The presence of these external links suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://medvor.ru/uplcv?utm_term=how+to+find+global+extrema
- https://brahmagnanam.org/fck_uploads/file/21801930514.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/37127eae767aa26ac88a9b16225d7e7c/33662320648.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a9ef83d46---kowivadutaturipexu.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/i1ihil71p7k0f5eagh2g8ongv3/liwemijurawuve.pdf
- http://danieldesignpro.com/userfiles/86067337415.pdf
- http://starcity-vinhomes.vn/app/webroot/img/files/82090165173.pdf
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/b8l43pigcmrqsq14868b0up99n/lovisigun.pdf
- http://singlesync.com/userfiles/file/robibaxumizare.pdf
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/fklmgrgkp7omoku3ei5hqdvb2l/wepegimuwidazuverevow.pdf
- http://ncabhsa.com/clients/875427/File/5325616598.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160908c94dcec8---nusixebebi.pdf
- http://pogotowienaukowe.com/Upload/file/33527444079.pdf
- https://marblobathware.com/app/webroot/img/files/mivekusamatunadijosusexi.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/t1od6dckcne6bqivglkf172klb/gapow.pdf
- https://actor-conseil.com/files/file/torejodudizozabegurufiga.pdf
- https://bozoklar.org/ckfinder/userfiles/files/5293954998.pdf
- http://envisystem.com/upload/userfile/files/vakagokawolinaru.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/43f5pakvh28psl8e9qt6kqjohr/47711995572.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/fbe8be9f4b84d6558639c28f2f870637/7747408120.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984b7691723---vamox.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/516samigjk6d42914sgskm7226/xirafupikukesixe.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bff38f7d78d---66211466644.pdf
- http://apsara.ru/userfiles/file/bijufagozemalexunalob.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0428e542bf---xuxufijiduzegokududimu.pdf
- 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_off0000cc06.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC06 | 16792 bytes |
font_01_sfnt_off0000e41d.bin8d5d4d5f4243b4f1dc03ee59b132e50c24643033053ddd35c4dbd4f7c03daf2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE41D | 10848 bytes |
font_02_sfnt_off0000fcf0.binef4ed0a2c9f3ac9f2022b7c166c50ebb765a1fb9ae78f41cd6422413cb281009 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCF0 | 17812 bytes |
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