MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1190 Exploit Public-Facing Application
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised websites or disposable hosting, indicative of a phishing or credential harvesting campaign. The 'SE_MFA_LURE' heuristic strongly suggests the document is designed to trick users into approving MFA requests or providing one-time codes, likely to steal session tokens or bypass multi-factor authentication. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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=how+to+download+minecraft+java+on+android
- http://pinxedien.net/upload/files/sosidarumesidazizebiwanos.pdf
- http://www.jacenter.org/js/ckfinder/userfiles/files/32858347387.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138d7632752d---8689918888.pdf
- https://sunsetlearningcenter.com/userfiles/file/13751062057.pdf
- https://incoyun.com/calisma2/files/uploads/setasowaboroliguvubepow.pdf
- https://designclarf.it/file/lulajerugus.pdf
- https://rwd.webseo.tw/upload/files/kuzumazosaj.pdf
- https://alquimia.in/admin/fckeditor/editorfile/pazowavedoximedazilopeje.pdf
- http://pamatudarbai.lt/ckfinder/userfiles/files/dolesosum.pdf
- http://trevorhannant.com/8933697419.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613fa6c4dd7c9---75471095331.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e40bca8d3---baviz.pdf
- https://labelmarket.pl/data/file/91692488336.pdf
- http://technoprofile.ru/userfiles/file/kebotenoxitajake.pdf
- http://studiozammuner.eu/userfiles/files/fizovukeb.pdf
- http://asacnfservices.com/ckfinder/userfiles/files/dovepafevugig.pdf
- http://jsjxh.org/filespath/files/20210915093500.pdf
- http://kavtas.com/images_upload/files/gifofesirurexamedi.pdf
- http://pwr-tech.ru/userfiles/file/62928984536.pdf
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161431c7ad0724---99849117767.pdf
- https://flyags.com/editorResources/file///ximojusovomivokalixejudo.pdf
- https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/namapemuxazejowajidaseb.pdf
- http://telegid.tv/userfiles/files/tugegajevowemuxij.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/satedepur.pdf
- http://tuttotop.com/userfiles/files/depugupulefime.pdf
- http://zaintik.org/files/galeria/files/sobebemujowijaru.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_off0000d3da.bincd6748527bc478514e3f0c0243b2b970c1d120e36b99fc6ed3b963a01d653f0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3DA | 17212 bytes |
font_01_sfnt_off00010092.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10092 | 16792 bytes |
font_02_sfnt_off000118a9.bin82c4438d73727e57950348f5396a340f4cb453a15b0a71dab5ddd9b3ba1ff0c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A9 | 10744 bytes |
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