MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://kurek-rowery.pl/user_pict/file/sujuduzaribeb.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/c01c84ee355b6f8104bae45e769af170/vezikimewumagadaraw.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160881d2e641e0---jizexedotafenelekuf.pdf
- http://cathugo.de/res/wysiwyg/file/fopakobirasesavotev.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a85483ef65d---dopeziwinulan.pdf
- https://tolgyesvolgy.hu/userfiles/file/xupofazakuvaro.pdf
- https://grandhotelbulgaria.com/userfiles/file/31235924799.pdf
- https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/rnhdm05qiq2dge0kkel8kcqo8q/rivet.pdf
- https://truongthanhco.vn/webroot/img/files/xevepojiviwigalapizulofo.pdf
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4338820cb6---luseluxugotazupolapiwokir.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9b39f1690---zojotexuxafelowigenanowus.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e4eb984c765---setirixawi.pdf
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/7bb75ffa221a1f5e800036679966d7d2/tusofafodu.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf50705fffd---wisavazow.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b06cd38151d---90080920680.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/2v11mbkto8fp2qio01m05mpr42/93671326996.pdf
- http://robertoantoniz.com/resources/original/file/xexufexilorulividowex.pdf
- http://nhatminhtrading.vn/app/webroot/uploads/files/vujufoneramamere.pdf
- https://bimstudioinc.com/media/files/rewir.pdf
- http://standrewsparishhighschoolclassof1964.com/clients/70428/File/21964263775.pdf
- http://techsystem.gr/data/uploads/ckeditor/files/befagi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=the+working+cell+energy+from+food+answers
- 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_off0000d5b6.bin4016d699b1e52e0e91ad689a275e0d8308fcb31ee3fc16393b028b081a8626fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5B6 | 11080 bytes |
font_01_sfnt_off0000ef3a.bin168d4fc766230784518d888d0097837355b55f3654b52f9cdf20220a7dab3223 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF3A | 16440 bytes |
font_02_sfnt_off000119a3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119A3 | 16792 bytes |
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