MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous URLs hosted on various domains, many of which appear to be compromised or disposable. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The ClamAV detection confirms this assessment, identifying it as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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 http://www.mmd.ntou.edu.tw/ckfinder/userfiles/files/ponidaramakew.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/0b59b4f14acc8d5bc419111ab826a07f/73137565295.pdf
- http://www.heksan.com.pl/file/zopemoga.pdf
- https://sonntag-immobilien.lu/userfiles/files/dinunetopemajevibo.pdf
- http://lnianemarzenie.pl/userfiles/file/vopanosujojetim.pdf
- http://worthingtonpark101.com/userimages/zuzulazivuxejok.pdf
- http://homeshopeez.com/uploaded_files/userfiles/files/zivobuxijunato.pdf
- https://rmp-familienanzeigen.de/cms/files/25076614284.pdf
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/20e32f7b9497f40786373b74839ff2aa/zuzaxudibok.pdf
- http://atrsara.ir/resource/files/dexetupogufenerafexuti.pdf
- http://tofuyatogo.com/uploads/files/zuzepuzil.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1a696c520---73836067432.pdf
- http://bawaconstructions.com/editorData/file/2506689608.pdf
- https://suacuasathcm.com/uploads/files/xevazekifodevijotudug.pdf
- http://dxczx.com/ckfinder/userfiles/files/20210617_192808.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/f5b015a016ac4527e92bb782a0e1dd2b/mefak.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/47efdb89257a2770807f8a8836a12110/79423276344.pdf
- http://dighakanchaninternational.com/FCKeditor/file/sovibalesorinamop.pdf
- https://aashianarealty.com/file/77787465314.pdf
- https://balajitutorial.com/admin/userfiles/file/jezazas.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff3a0b78d8---limodav.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/l6a78v8rb19f5dlm1jkfto8eab/rudapamazakur.pdf
- https://thaihoanghung.com/upload/files/34668880099.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=people+need+to+mind+their+own+business+quotes
- https://www.unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/20069618930.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_off0000c206.bin791ef00cb691033351bd8fa50781cd942029a6bfdb2444d7efc87ea78eecd3be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC206 | 17024 bytes |
font_01_sfnt_off0000ede8.bin849e3ecdc671b2c60e1d222c6f41937713e3e0f8018ad782c83a43f7d35e779c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDE8 | 10968 bytes |
font_02_sfnt_off000106bd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106BD | 16792 bytes |
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