MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URLs, many of which are hosted on compromised or disposable domains, indicating a malicious intent to redirect users. The ClamAV detection and ML classifier strongly suggest this PDF is a phishing or malware distribution vehicle. The embedded JavaScript likely facilitates the redirection or payload delivery to these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://penzionnakrizankach.cz/ckfinder/userfiles/files/gobobivov.pdf
- https://milorem-service.ru/userfiles/file/nutid.pdf
- https://vargyasnekonyveles.hu/kepek/other/file/67602117083.pdf
- https://mumegram.com/userfiles/file/gawiloxivonomigigaj.pdf
- http://around-sicily.net/userfiles/file/tirimif.pdf
- http://k-ookuma.com/js/upload/files/71224598809.pdf
- https://securitydm.eu/slicice/file/wubarebabowenero.pdf
- http://nanouklid.cz/upload/file/simofem.pdf
- http://xn--b1adrijbbb.xn--p1ai/upload_picture/58398087763.pdf
- http://afghansolar.com/userfiles/file/61770635202.pdf
- http://autoservizimensi.it/images/fck/file/12320638970.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eac860e558---tosazunezifawufu.pdf
- https://seeandhearbetter.ie/img/shop/contents/35066745882.pdf
- http://medrea.ru/upload/files/77706178378.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16134e6551d7ea---19248620496.pdf
- http://www.iciparis.ru/ckfinder/userfiles/files/6373097634.pdf
- https://gopherscopes.com/userfiles/file/9604366175.pdf
- http://urparitet.ru/admin/ckfinder/userfiles/files/zanage.pdf
- http://kirsanov-maslo.ru/uploads/98750185229.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b707071e4f---bowolijogujinolaw.pdf
- http://ilsungwarehouse.com/userData/ebizro_board/file/zenunipupavixisavibus.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613e6a666d1ae---lasekojofaluse.pdf
- http://mybed.tw/uploads/files/202109052033326141.pdf
- https://commonlawhouse.in/userfiles/file/powogorudupenug.pdf
- http://suliaok.com/v15/Upload/file/20219461415497.pdf
- https://editionsitaliques.com/userfiles/file/83123880742.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=adobe+spark+apk+mod
- 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_off0000b468.bin3e1fff736a83aa93284a671a9bb14f44387e7b2bb1f2fd7ca9084e268d46d960 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB468 | 15836 bytes |
font_01_sfnt_off0000db80.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB80 | 16792 bytes |
font_02_sfnt_off0000f397.bin07924a9c3a7e8227095c89c9d91478b1c74cfe8e1fc6de1461fc388e730504a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF397 | 10424 bytes |
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