MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised CMS uploads 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 delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://wastran.ru/uplcv?utm_term=ps2+gta+vice+city+iso
- https://fasleh.net/Files/files/69338605810.pdf
- http://medizator.ru/ckfinder/userfiles/files/92153423407.pdf
- http://teewer.mn/ckfinder/userfiles/files/dutumobobagedi.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/f2fe0e59fedc1433e5e71d5798bcf295/59621757229.pdf
- http://andersonlawdecorah.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/babiduxiladamevudotajaw.pdf
- http://nguoigiupviec99.com/webroot/img/files/45751063053.pdf
- http://land89.com/ckupload/files/kesekej.pdf
- http://www.creativitaecomunicazione.it/js/lib/ckfinder/userfiles/files/78556104749.pdf
- http://chukguwang.com/files/fckeditor/file/4771078216.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16141c402a4135---puxivaletujemukozuj.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/172a61a326e28f01615a9cb7b63cbd31/wulox.pdf
- http://prttour.ca/FileData/ckfinder/files/20210904_54F3074FE1A8534A.pdf
- http://venusland.vn/app/webroot/img/files/besigujadozenalugepuviwib.pdf
- http://cuacuonnhanh.vn/Images_upload/files/12446520299.pdf
- https://thietbivesinhanhhuy.com/asset/files/kopopenuzediru.pdf
- http://www.cafeinca.com/img/public/contenido/file/51832440118.pdf
- http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/80195148810.pdf
- http://eca.or.th/ckfinder/userfiles/files/xoxesu.pdf
- http://deccanquest.com/konadnew/userfiles/file/divabazasaxogetikeboje.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/8cc4ca73f57d7d1880e365a49f8714e2/netagadinog.pdf
- http://abnicum.ru/files/file/93299602417.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d792.bin554046b9019f6ee61982ccbe9cb059b5c4dac4ef559c3301ec4f64818edc9125 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD792 | 10456 bytes |
font_01_sfnt_off0000ef9a.bina8cdf31c36e82af84c9f5937ef0d6185624d56d213eca10905e1a57f2339affe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF9A | 17668 bytes |
font_02_sfnt_off00011ce9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE9 | 16792 bytes |
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