MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or link farms. Heuristics indicate it's a link farm on disposable hosting and directs to compromised CMS uploads. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 http://naturestuff.nl/siteimages/file/jofem.pdf
- http://szyoujin.com/UploadFile/file/20210908225758085.pdf
- http://xn--b1amishc2fb.xn--p1ai/ckfinder/userfiles/files/wupufa.pdf
- https://northcoteplaza.com/userfiles/file/35256953868.pdf
- https://sistemagestiondpr.com/userfiles/file/kumagatoxekukuru.pdf
- http://jianianhuayule.a9188.com/upload_files/art_files/files/20210903_011504.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/c1ee53984dc6c2dc040ea75e3596a843/73888631196.pdf
- http://madmojo.com/fckupload/file/kajelakofedajovaposunepeb.pdf
- http://igigeothermal.jp/userfiles/file/38766245533.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364c008b038---56349540304.pdf
- http://domainecomps.com/documents/files/rosar.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/161315db6ba226---begavagosobeja.pdf
- https://netkat.in/ckfinder/userfiles/files/xeziladenike.pdf
- https://sushixusa.com/userfiles/files/85787809198.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137733266591---lixajosekamawi.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/91a302d2d1bff4736494a1af0b7c6eb9/9225472763.pdf
- http://hyswimpool.com/userfiles/tuwozomojapowawutan.pdf
- http://czerwoneiczarne.pl/files/file/37730800794.pdf
- https://autopsrus.com/ckfinder/userfiles/files/kebifokotolif.pdf
- http://penzionnakrizankach.cz/ckfinder/userfiles/files/58577955392.pdf
- http://bettynblue.com/upload/fck_img/20210905/file/furekusejuza.pdf
- https://zagorjeadventureteam.hr/files/zagosodope.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=one+click+tool+to+open+browser+to+remove+frp+on+all+samsung
- 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_off0000db5a.bin8ac4a8cdad3eb2738449f1ea2e56aca93b6f8bdc793bff0535b4a3b75b0eba06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB5A | 11332 bytes |
font_01_sfnt_off0000f5ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5ED | 16792 bytes |
font_02_sfnt_off00010dff.binfe0c714bae79f5d0ac2b495d968578541b38d49746dee8596052eef2cfbbbef0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DFF | 17804 bytes |
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