MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous links to external websites, many of which are hosted on compromised WordPress sites, suggesting a link farm or phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/55b5e1557787a11f3ccc0141cf03564b/69636970577.pdf In PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/ad2200ba6a95ea795511ab59b369f7b7/pidedifadufuf.pdfIn PDF document text
- http://bukharageorgia.com/sites/default/files/file/sivomaromudajo.pdfIn PDF document text
- https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/7a177346dc0dfb3e49a57868b5a3dceb/bijavofuwalekiwagotarutaw.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/l2jjsp3q5q5lv6pq0b98d4tack/96568197481.pdfIn PDF document text
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608134527f50d---13059891095.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc076b411a---marolef.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/9ece109fa407514a817a68997854c764/25039645339.pdfIn PDF document text
- https://chinatupai.com/web/js/ckfinder/userfiles/files/liruxirugevofuzalujurupi.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610573ebebb0a---23952624452.pdfIn PDF document text
- http://954move.com/clients/4890/File/nitipirebuwoxusopovi.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/20o4ricjtih5a8cspd37ugchm6/46796775681.pdfIn PDF document text
- http://speckrepeg.by/UserFiles/files/bojamukakexekesawubi.pdfIn PDF document text
- https://saleskerala.com/ckfinder/userfiles/files/56997398865.pdfIn PDF document text
- https://sakkestadbil.no/userfiles/file/64836833521.pdfIn PDF document text
- https://coastalstudio.com/images/main/file/mikiroxodolotazugusineli.pdfIn PDF document text
- http://saigonford3s.com/uploads/2021-07-16/images/files/jomewikiwitofesemuvup.pdfIn PDF document text
- http://marchmontnews.com/imgs/file/kekapogojavoduk.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae0c1cd0f8b---29907212139.pdfIn PDF document text
- http://drwatsonsr.com/clients/2/2b/2b9a0cf27321ceab3a47fbd10bf94d34/File/tavojolowaworujejeso.pdfIn PDF document text
- http://dienmaybaongoc.com/ckfinder/userfiles/files/35228374100.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082fbf2932f2---1855141524.pdfIn PDF document text
- http://hajnysport.cz/FCK_userfiles/file/mamobanafoz.pdfIn PDF document text
- http://areaengineeringsrl.eu/userfiles/files/15248888876.pdfIn PDF document text
- http://elrey-uslugi.ru/media/file/jaborilusafesisoduz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=urinary+tract+diseases+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF0B | 16560 bytes |
SHA-256: 227e71fd8b181a1175881b06ad1f91611f84f0846b71f3a5bc4a3695a31e2a6f |
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font_01_sfnt_off00010906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10906 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001211d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1211D | 10568 bytes |
SHA-256: a265d63a407ebd2e7a4455638179af768be650d30fa44b46058ad30cbf5ac9c0 |
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