MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs pointing to compromised WordPress sites and disposable hosting domains, indicative of a link farm designed to redirect users. The presence of embedded JavaScript and ML classification further support its malicious nature, likely serving as a phishing lure or a distribution point for further malware. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://inwebjor.ru/uplcv?utm_term=outofmemoryerror+java+heap+space+spark PDF link annotation
- http://ttlh.vn/storage/ckfinder/files/tunewofadegupikamarizo.pdfIn PDF document text
- http://crestviewshopping.abwingsmd.com/uploads/files/dimar.pdfIn PDF document text
- http://about-dogs.ru/upload/file/68212350870.pdfIn PDF document text
- https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/dejebak.pdfIn PDF document text
- http://hk-keber.de/images/file/28033647862.pdfIn PDF document text
- http://ekopaczka.pl/imgbrama/files/54127880076.pdfIn PDF document text
- https://defi128.phpascal.com/userfiles/files/xuleso.pdfIn PDF document text
- https://ontogepszerviz.hu/editor_up/baronasew.pdfIn PDF document text
- https://tcremich.lu/files/files/88444630506.pdfIn PDF document text
- http://phoiinnhiet.com/images/uploads/files/15383878546.pdfIn PDF document text
- http://ardennes.proximeo.com/ckfinder/userfiles/files/65652841313.pdfIn PDF document text
- http://boletos.luzservicos.com/ckfinder/userfiles/files/3120993413.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0f02f12f0---dajube.pdfIn PDF document text
- http://szerecsengyogyszertar.hu/editor_up/fusibexepox.pdfIn PDF document text
- http://tiszaikaland.hu/upload/file/72969355436.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/vigebegisaget.pdfIn PDF document text
- http://proxima-design.cz/files/file/sesitaxuluvol.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/mndn415heggpa9q9oft8vqb2c2/fawivujoketikunama.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/161391f390803c---daxojojelemumu.pdfIn PDF document text
- https://easy2ticket.com/upload/files/41046480383.pdfIn PDF document text
- https://tpk-m.ru/files/file/ritewajezesavobo.pdfIn PDF document text
- https://appchecar.com/ckfinder/userfiles/files/kurikositanokoxibexuvejij.pdfIn PDF document text
- 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_off0000de0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE0D | 11028 bytes |
SHA-256: a17e0e97084bf11d57bdf82eb70fd5546679f8788a4cad23be1c47aca7b43ff6 |
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font_01_sfnt_off0000f7e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7E0 | 18244 bytes |
SHA-256: 86bd472f3e66ef291cca5e90fab8f00c0c45c153d74a186ebe0bd48453d0882c |
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font_02_sfnt_off0001287b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1287B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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