MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The presence of 'utm_term' parameters suggests a phishing or SEO manipulation attempt. ClamAV detection and ML classification further support its malicious nature, likely serving as a lure for phishing or malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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=instagram+private+profile+viewer+app PDF link annotation
- http://tdsns.ru/userfiles/file/94171504322.pdfIn PDF document text
- https://gentrilieu.vn/userfiles/file/39540353941.pdfIn PDF document text
- http://mercuresamuichaweng.com/admin/file/baveradepivevanoku.pdfIn PDF document text
- https://nazragame.com/calisma2/files/uploads/vuzajubutu.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/5f201a5f067d3448583220faa7463468/vexudozofofudikidategur.pdfIn PDF document text
- http://melabo.com/upload/files/70710509743.pdfIn PDF document text
- http://cheers-gifts.com/userfiles/saviguvikapakoza.pdfIn PDF document text
- http://joy05.com/_UploadFile/Images/file/21266038196.pdfIn PDF document text
- https://mollis.rs/files/xopuzupukibosurok.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210903_43E4063DBDDAD7C4.pdfIn PDF document text
- http://s2ipower.com/survey/userfiles/files/78657557599.pdfIn PDF document text
- http://www.yemany.com/yemfiles/files/12030231707.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/vobtqupcc5pio1hoa5hvta1osa/wupinonobineb.pdfIn PDF document text
- http://zhuoer.ltd/userfiles/file/10787384964.pdfIn PDF document text
- https://commonlawhouse.in/userfiles/file/19399587681.pdfIn PDF document text
- http://studioaba.net/userfiles/files/wajedefaxogosef.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/dajusiwamolize.pdfIn PDF document text
- http://abcbyspu.com/ckfinder/images_store/files/xavozoxafezisurexe.pdfIn PDF document text
- https://equator-maritime.com/userfiles/file/43176848017.pdfIn PDF document text
- http://bamboomfi.com/htdocs/cljr/data/files/2902789547.pdfIn PDF document text
- https://kermanrooz.com/img/files/nibuwubobawere.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b32f42a44---tepupo.pdfIn PDF document text
- http://hzbmsj.net/images/upload/File/43422221138.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_off0000aec4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEC4 | 10804 bytes |
SHA-256: e31953372e8b6042662543db77f8f1450bf77006f349c03bd2fff1057de1c5b2 |
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font_01_sfnt_off0000c7b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7B0 | 14972 bytes |
SHA-256: 8397ce5ac55364b4ed603204859233815812f4983292b171fd3f6ad50f288638 |
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font_02_sfnt_off0000ed40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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