MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URIs and link farms pointing to compromised CMS upload storage, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links indicate an attempt to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://krisoc.ru/uplcv?utm_term=french+league+ranking
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/d23e1cd8c54463284cefa01f023bcae5/32129883291.pdf
- https://bodykneadstherapy.com.au/ckfinder/userfiles/files/nikewasikeroja.pdf
- http://studiolorenzoni.eu/userfiles/files/77952186260.pdf
- http://ambvetsanprospero.eu/userfiles/files/sotug.pdf
- http://sh-songshi.com/admin/upimg/file///xadugaredevitubavox.pdf
- http://recviem.ru/img/upload/wojifikixe.pdf
- https://oldd.adventurenetbg.com/userfiles/file/10410944934.pdf
- http://getsolarny.com/userfiles/file/10754419036.pdf
- http://agama-rc.com/upload/files/lorodosomaromemotugajar.pdf
- https://angelsolutions.ro/ckeditor/ckfinder/userfiles/files/wiraf.pdf
- http://mirai-kankyo.com/userfiles/files/19849396021.pdf
- http://okna-kurska.ru/page_edit/_samples/userfiles/files/tejawomudesiputusop.pdf
- http://cambresisemploi.fr/ckfinder/userfiles/files/24703389269.pdf
- http://teamtrinity.net/trinitya/file/luseduwux.pdf
- http://grandioso.asia/editor_upload_image/file/43245925298.pdf
- http://31kouqiang.com/userfiles/file/1630688568.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1c8024bce---jixumomejidolim.pdf
- http://pobierzplik.pl/uploads/files/54890058684.pdf
- http://jfe.hk/userfiles/xorakibepibotebelijaxolab.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/9163c73b0824d08e3d7504fa61fa4dfb/28429886493.pdf
- https://francoisdaulte.com/ckfinder/userfiles/files/seromel.pdf
- http://ilovehikari.com/uploads/files/tezosedogitiwikonenuse.pdf
- http://gtlfuelmarine.com/userfiles/file/seperanaf.pdf
- http://burmeseburmilla-allevamento.com/userfiles/files/xenunupozus.pdf
- https://turbooto.vn/upload/files/46899047664.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_off0000bf98.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF98 | 16792 bytes |
font_01_sfnt_off0000d7af.bin3dd993c532f37e37c34addf822a72270572fca4baae970161341132213076d62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7AF | 10292 bytes |
font_02_sfnt_off0000eea2.binfdc61a9198f34e82d4fa8be7f72da2fce068235629f1fed0b60fe41512e915df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEA2 | 17604 bytes |
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