MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to potentially compromised websites or disposable hosting. The presence of a URL with 'robux hack without human verification' suggests a phishing or scam attempt aimed at users seeking in-game currency.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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 https://krisoc.ru/uplcv?utm_term=robux+hack+without+human+verification
- http://etkenkalip.com/files/10704769161.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139dd553bd9b---mizepilig.pdf
- https://pemaboutiquehotel.com/assets/userfiles/files/35460547737.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/c19d1b4066846490cf47b9f9b5ecd76c/zazarunepevazojotifapevuw.pdf
- http://mmsmarin.com/imgimage/file/21516169009.pdf
- http://abwmechanicsville.com/uploads/files/15399578605.pdf
- http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/xikakokopewibete.pdf
- https://mchs.kz/userfiles/File/sibizawokakorokuvigawim.pdf
- https://inprovitcentroamerica.com/ckfinder/userfiles/files/77060775970.pdf
- http://tfforming.ru/d/files/95370399950.pdf
- http://smwiarus.pl/ckfinder/userfiles/files/guferemoxija.pdf
- http://bigbazar.cz/is/images/FCKeditor/File/71515912993.pdf
- http://vekosgroup.ru/userfiles/file/mefovaj.pdf
- http://bronia.org/userfiles/file/13096804883.pdf
- http://tonioloclaudio.it/userfiles/files/venoxibujima.pdf
- https://on-call-anatomist.org/ckfinder/userfiles/files/14519212917.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/b9e0f445146476a51255cf81aa3f8b14/16947661193.pdf
- https://carmelocuritiba.com.br/ckfinder/userfiles/files/daximalenifavu.pdf
- http://abnig.friendship-match.com/upload/files/tuwofubemejujutes.pdf
- http://tatugigo.com/ckfinder/userfiles/files/tekokoreninevolukev.pdf
- http://ptairsupply.com/userfiles/file/runare.pdf
- http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/jizadifusinanusibijusiboj.pdf
- http://westpakusa.com/phpsites/vertical_living/uploads/file/fakozuronukage.pdf
- http://pincodehub.in/userfiles/file/jirazawetupu.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_off0000bdf1.binf216f86be5332b60e74772a435404aca40b3a36b0fd5a158d89cf812ba2d36a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDF1 | 18440 bytes |
font_01_sfnt_off0000ed28.bin90dd5359e13570a46774601d82daf4ed472e8a388b657e49770de4519bcd366f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED28 | 11020 bytes |
font_02_sfnt_off000106bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106BB | 16792 bytes |
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