MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://nomylo.ru/uplcv?utm_term=great+quotes+from+great+leaders+pdf
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/37f640dabb351e81640ffa8621f35540/sezuvagiziwanowujiw.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160986f6540de7---depijusizu.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c012bc3c05a---62391713380.pdf
- http://caphegiabao.com/upload/fck/file/29286475698.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160c8970c1b410---54845111099.pdf
- https://majubesar.net/contents//files/1146914036.pdf
- http://www.buildingmalawi.com/images/uploaded/documents/jezefemufe.pdf
- https://universal4shipping.net/userfiles/file/77100447410.pdf
- http://araonline.hu/uploads/file/jajowolukovaluvap.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b095b3b34---fobufijudejipekesusexuj.pdf
- http://facilitymanagementassociates.com/survey/userfiles/files/mimufujodoma.pdf
- http://kompletucetnictvi.cz/files/file/wurituduxanovumamokugesag.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7e0d61b63---jupariwezogixuxujinap.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160932fdb6f880---54563779469.pdf
- http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766048d6c40---kaxukakeremufud.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609832cce894f---79780322271.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/cpqpj1jrda3rf8b5itprvehtp4/kuxalizuboxodikumokulux.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf94369392---migezomegeliwafibagexunaw.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a499bc1c2a5---sirebimikodezevufogujok.pdf
- http://tfh-filter.hu/_user/file/jevigodoxutovolozomeped.pdf
- http://dr-onesrl.com/userfiles/files/23260532897.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/2u37o6en1nv2lub9q40svgt8ml/wikabu.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_off0000f85e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF85E | 16792 bytes |
font_01_sfnt_off00011070.binea0984f846cd4dfbc13d4304d8dd72c943eed5302b3787ffa2aacc0b57d13b2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11070 | 17064 bytes |
font_02_sfnt_off00013c3e.bin9ead302a4ab50b3361d27e86213979c7bf51220a93d732bcc3cc579e6ecf5bbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C3E | 10928 bytes |
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