MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs that point to a variety of domains, many of which appear to be compromised or disposable. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using these links for malicious purposes, likely phishing or malware delivery. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://crewmak.ru/uplcv?utm_term=poliana+livro+pdf
- http://vaness-sens.fr/ckfinder/userfiles/files/72159348444.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1956c9fe6d---41468594466.pdf
- http://nemochem.cn/upload/files/ruxekisigik.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a26a2bf0c22---25557484049.pdf
- http://tsrmvolontari.it/userfiles/files/dopizupugugubagisopum.pdf
- https://nabijdefossa.nl/upload/files/45847721433.pdf
- https://amadesafar.ir/basefile/amadesafarir/files/zutanitolunitigifinud.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/7d4e5937e231cee625583c0ec613f72d/49521128777.pdf
- http://studioingtassinari.eu/userfiles/files/53449427925.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c822851923---dasaturejiramujopujifu.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac7d3b39bd---8886664694.pdf
- https://i-try.tw/upfile/files/2021/09/01/felamisuvikenasigerezuxo.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612b3807a656c---gisagagavo.pdf
- http://taborcapitalpayment.com/clients/d/d0/d0a3925ee25d0adc8806453b18bccccc/File/juxupesirimuwamesakut.pdf
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/9e4a8b99f41cb50ab93260cb3fe35efc/36289260123.pdf
- https://ayurvedaemart.com/uploads/file/93319864007.pdf
- http://www.udelimpa.es/ckfinder/userfiles/files/85453391403.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/5400894691.pdf
- https://gelblighting.com/userfiles/files/73213418043.pdf
- https://bakwanudang.com/contents//files/jirobiwepezenos.pdf
- http://meimagedance.tw/ufiles/files/878227909.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/8i9ffcs3i3ht845rdambm4kkf7/34248334576.pdf
- http://aliceinformaticasrl.com/user/pages/96484442758.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_off0000cc70.bin480cbd9b8d0451a891a854b5044301420215e110b101f4f32eecee45740d37d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC70 | 18100 bytes |
font_01_sfnt_off0000fb1c.bina0c1a7ef618e4cf388ed62eafe9e0a8eb75081f1551c955d44f6c9a70a7ff43f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB1C | 10160 bytes |
font_02_sfnt_off000111de.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DE | 16792 bytes |
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