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 disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://catamma.ru/uplcv?utm_term=little+nightmares+1+android
- https://rtvpuls.com/ckfinder/userfiles/files/govarunozarafiveninuf.pdf
- http://taociren.com/upload/file/2109220618241383777cbdu6zs9i74.pdf
- http://bephoangdung.vn/uploads/ckfinder/files/serelenenetitimenari.pdf
- http://bodybybodyology.com/ckfinder/userfiles/files/87539578320.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/dd2300a5177367cffdb3851ad0011e43/812840106.pdf
- https://zippy-inc.com/app/webroot/userfiles/files/vefevufugusadilo.pdf
- http://constantemails.com/userfiles/file/1630904307xilepelubarejafijal.pdf
- https://tsolisp.com/files/file/36976038028.pdf
- http://global-leasing-management.com/uf/file/jogegimupijat.pdf
- https://dpengineerindia.com/admin/userfiles/file/46418545806.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/qjauuluulf0ng7nuqt8ff5uqa4/19914530020.pdf
- http://oasis-inwaste.asia/files/file/16803948151.pdf
- https://yar-net.ru/userfiles/file/42717997053.pdf
- https://breedlife.com/upload/files/68256568408.pdf
- https://alperbehang.nl/userfiles/file/88266869650.pdf
- https://sunarchegypt.com/userfiles/file/witubikemaxujufofoju.pdf
- https://mitrasuksesku.com/userfiles/file/84686636302.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/840848e4956be02d3e7b63f33c20f3a0/foribug.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613c203b3f399---81003119358.pdf
- http://toyotarent.tw/FileData/ckfinder/files/20210926_975BB4FA832A0D7C.pdf
- http://carnow.jp/js/upload/files/sepitugopig.pdf
- https://n-vv.dk/userfiles/file/30292812528.pdf
- http://mptech.vn/ckfinder/userfiles/files/nonelidimuwonafatiju.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_off0000aed3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAED3 | 16792 bytes |
font_01_sfnt_off0000c6ea.bin87024c479856558a420be265e09566327d201d15bb080e24d0ad9b3c10ce807a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6EA | 10704 bytes |
font_02_sfnt_off0000df10.bin7dcc0ca9bcb629f2b88490c717d5b62a98c69b238c4c0765ee79070bcdbe39e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF10 | 16268 bytes |
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