MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm used for phishing or malware distribution. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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=wifi+hacking+101 PDF link annotation
- https://bientannamhuy.com/wp-content/uploads/files/27404425006.pdfIn PDF document text
- http://eot.mn/uploads/userfiles/files/31119296614.pdfIn PDF document text
- http://hkalc.com/userfiles/41340288639.pdfIn PDF document text
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/4dfe5cdd77d1c53ea89969be7108d056/zazazamimobilumix.pdfIn PDF document text
- http://air-separation-supplier.com/d/files/wemomamegifebidimujuk.pdfIn PDF document text
- http://hodinovysoused.cz/upload/file/mapiberosamejesekudufom.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///61093296477.pdfIn PDF document text
- http://ultrabeauty-ff.ru/userfiles/file/87343386115.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab003c8e65---sukomusuguvafaworowikiv.pdfIn PDF document text
- https://hefcom-hydraulics.com/ckfinder/userfiles/files/22586533840.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/bebevovepidu.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161411e00bfdf1---10751545231.pdfIn PDF document text
- http://euredit-editions.com/userfiles/file/27835492355.pdfIn PDF document text
- https://santa.my/images/users/00000000/files/xanifefetol.pdfIn PDF document text
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/3612143463bc6f16fe79481120c168cb/15174890180.pdfIn PDF document text
- http://smartdeal.pl/files/upload/files/kiroxofebutukafut.pdfIn PDF document text
- https://trsoftyazilim.com/genelresimler/file/dosalatamazozerofa.pdfIn PDF document text
- http://betheaskssd.com/flash/betheaskssd.com/file/rusiwe.pdfIn PDF document text
- http://rrmkaryacollege.org/rrmkarya/userfiles/file/likanijevefo.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135c00ed1042---96993159108.pdfIn PDF document text
- http://yh-nutri.com/filespath/files/20210919124345.pdfIn PDF document text
- https://consultingexpert.eu/fckeditor/userfiles/file/daxipizojopevapopojufi.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_off0000c03f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC03F | 18380 bytes |
SHA-256: 0b722d92f155750e1ef6a52cef494e90a7380416ff91a3b9d88f82cf6b7723d1 |
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font_01_sfnt_off0000f02e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010845.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10845 | 10208 bytes |
SHA-256: 6c7038f61c418d85738cc4b634e62b469eaf53bda0b991ee42716a2b2abbfb11 |
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