MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains or compromised WordPress sites, indicating a phishing or redirection campaign. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious sites for credential harvesting or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://drafthe.ru/uplcv?utm_term=halliday+book+pdf PDF link annotation
- http://dralituncer.com/userfiles/file/66344783124.pdfIn PDF document text
- http://pyroglobal.sk/app/webroot/files/userfiles/files/32626682510.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/5371vkqv4ecqb2ev3jfc4tk7ik/13953978835.pdfIn PDF document text
- http://kesifveotesi.com/files/sexuzowawulizululigovo.pdfIn PDF document text
- https://venusnvs.com/userfiles/file/bigeko.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/6c3e94a9f922f475423451cc0d11ff4e/62871017098.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16142806f25440---pabixobesajugezovuk.pdfIn PDF document text
- http://haiannweb.com/uploads/files/43922112719.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144ff3529f4c---dipujof.pdfIn PDF document text
- https://apaman.ti-am.jp/js/ckfinder/userfiles/files/vebudekake.pdfIn PDF document text
- http://lignumweb.com/site/webroot/uploads/files/vatogezelokutonanav.pdfIn PDF document text
- http://hgbs.de/userfiles/file/fufavezotojagafod.pdfIn PDF document text
- http://runnersavezzano.it/public/userfiles/file/zowobusufakefafow.pdfIn PDF document text
- https://girl0229960192.com/upload/users/files/wepox.pdfIn PDF document text
- https://aedwea.com/upload/foto/25867398500.pdfIn PDF document text
- http://yevres.fr/ckfinder/userfiles/files/95543872764.pdfIn PDF document text
- https://girisimhaber.com/uploads/file/90285401947.pdfIn PDF document text
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/nawudi.pdfIn PDF document text
- https://seikai.jp/free_images/files/botegoziwali.pdfIn PDF document text
- http://kemenyseprosiklos.hu/upload/file/dovurajeseremikubusufiwuk.pdfIn PDF document text
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/4nsgeaei0prsk3av67t81q3rc2/55542989928.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_off0000d460.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD460 | 17480 bytes |
SHA-256: 23d4247b563a29886cc93a5ed96453a6bf9d1b41740bb3c514fa60d349af02a1 |
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font_01_sfnt_off000101c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C0 | 10224 bytes |
SHA-256: be697b1c9ea076d7c1b44c54c378edfcc4b8559099a8de296f12a104554c1048 |
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font_02_sfnt_off0001187c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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