MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream 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 ClamAV detection and ML classifier strongly suggest a phishing or malware distribution intent. The embedded JavaScript is likely used to facilitate the redirection or download of further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://cructi.ru/uplcv?utm_term=what+happens+to+a+refrigerator+when+you+lay+it+down
- http://kcemsp.org/upload/editor/file/pudidipe.pdf
- http://www.pattyn360.com/upload/forum/files/57393188091.pdf
- http://egitara.com/upfiles/files/burezazuf.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b5b750dd3---10478442065.pdf
- https://i-chat.tw/js/ckfinder/userfiles/files/lujifepizi.pdf
- http://phongkhamthienhoa.org/images/files/rivimixedodotodule.pdf
- https://ipekyolumedya.com/resim_galeri/file/16418757916.pdf
- http://chochosanencino.com/uploads/files/8897246503.pdf
- https://shih-tzu.ro/files/file/wevebiwema.pdf
- https://5703n1n6999-6a55.com/contents/files/sagak.pdf
- https://adium.ru/userfiles/file/bolefob.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614fa6491cd26---pajanigoxipof.pdf
- http://valsadindustries.com/userfiles/file/11720831435.pdf
- https://verredistri.fr/xmedia/file/regodaxigarifavutesimup.pdf
- https://moderator.lt/components/com_mijoshop/opencart/image/data/files/66233429620.pdf
- http://conniecorsentino.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xorolifediv.pdf
- http://melodylavernebettencourt.com/media/file/wolelilaludozeregexu.pdf
- https://kopari.hu/files/file/bivikujizoreguv.pdf
- https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/saremofiwazu.pdf
- http://condominiobrisasdelnorte.com/userfiles/file/72998834118.pdf
- http://faptvmedia.com/userfiles/file/48748429005.pdf
- http://fabriquetextil.com/js/new/fckeditor/userfiles/file/17002053692.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5a8dd126a---87644567722.pdf
- https://unaizahic.com/Files/files/47979400914.pdf
- https://losaltos.com/wysiwygfiles/file/17128808026.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_off0000b3e8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3E8 | 16792 bytes |
font_01_sfnt_off0000cbff.binf513b411b9b95d2ef9317cc435cdbe8889e694e46606383521dc5d106bfb3d9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBFF | 11072 bytes |
font_02_sfnt_off0000e598.binc461d267a706cf3b4e91cb26ece81c120058a9179ad9caf14c41c0e9f5167327 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE598 | 16704 bytes |
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