MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. It also features a link farm pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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 https://crewmak.ru/uplcv?utm_term=t+rex+natural+history+museum
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ed19c12b2---27463269346.pdf
- https://bamfieldrental.com/userfiles/file/92899471671.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608623ab420ca---40996650648.pdf
- http://goldenbaycruisesagent.com/userfiles/file/86295071818.pdf
- http://kfnmsz.com/upfolder/e/files/20210629141532.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c298c05323---ropuluxowuxajoba.pdf
- https://careersourceokaloosawalton.com/files/public/pozowowijopijiji.pdf
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/87bf0df4c79eb274087781eabc8f6e5c/zoriwavuvevobaw.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607e458c2ac1e---nuzap.pdf
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/2106250753401255793wk86o.pdf
- https://drticket.ir/basefile/drtiketcom/files/98062614210.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1609a227905cca---wubadulisizewupofo.pdf
- http://uctodane.cz/UserFiles/File/67020850016.pdf
- http://retroldn.com/userfiles/file/15632080852.pdf
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/qhd7r2uroen496a6rogcgno8v4/5886151336.pdf
- http://akcjonariusz.com/UserFiles/file/1526685590.pdf
- http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/28914063326.pdf
- http://volamtuyetthe.com/userfiles/file/rupexudeziwaganu.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1d9153de9---71747075420.pdf
- http://xz-brand.com/ckfinder/userfiles/files/12229660345.pdf
- http://coxfamilyreunions.com/clients/5/56/566bc9ad745482f371977770c3e6b383/File/1069647624.pdf
- http://goldenbaycruisesagent.com/userfiles/file/49512067352.pdf
- https://markeishahall.com/wp-content/plugins/super-forms/uploads/php/files/c95049d34aafd697e7f61c594c5fe086/35993134906.pdf
- http://kingtonkatsu.com/uploads/files/xuvokonuzukaxeviva.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e962.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE962 | 16792 bytes |
font_01_sfnt_off00010179.bin6f0dd75300031fb3a4555ae136bc457fc7d088c408183d96e41aeae4752488e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10179 | 10652 bytes |
font_02_sfnt_off000119a8.binc173b71fe80adfa541066b51dbcf31ec9013857ca5e7e1ad4c5aa1a7e8eacec1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119A8 | 3556 bytes |
font_03_sfnt_off00012755.bin60718ac39e25ae1e9f7ad71055b6d36bbc4b69542d1d14eb94a26970ef3cead3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12755 | 16952 bytes |
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