MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which appear to be compromised or disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with a phishing lure designed to trick users into downloading a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://akvari-um.ru/userfiles/file/lubufobirosudasow.pdf
- http://leadershipcareer.kr/fckeditor/_upload/file/vedesiwilutataranil.pdf
- http://logiccpacma.com/ckfinder/userfiles/files/19632128601.pdf
- http://bdn10.cz/files/file/23550619153.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/e8svbcvt4bbcfd4oom3g3qlhs8/najumijugadak.pdf
- https://emauto.lv/index/images/up/file/74475124055.pdf
- http://cayxaotamphan.net/userfiles/image/file/34002591646.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608efdeb4d2f8---60852178765.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/4ovh0748hc7ka51r2ch5mrksfo/fuposuta.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4bcd5ac7af---52379613344.pdf
- http://apcmagon.com/userfiles/disabuvodejimopuwutig.pdf
- http://shelton1961.com/clients/35589/File/4895217664.pdf
- https://magerp.org/upload/files/zalav.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160905b21926e6---33276424791.pdf
- http://hugslock.com/app/webroot/img/files/genuriwuzidopunomisedo.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083296a93cf1---tixazejonobomasupa.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16075fdec6464a---2233694230.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/1a5dd295372b43f7be13bae43da812ae/73239628357.pdf
- https://ketdoanbus.com/webroot/img/files/zetigabumozodaruroj.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/e1snrlh11qsl1s0a3piduknjan/22920413950.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/16f32f421d106d7f7eb3167c600016c2/zunefube.pdf
- http://ipceurope.eu/assets/file/84538865720.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=icse+chemistry+class+7+textbook+pdf+free+download
- 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_off0000ec9f.bin42e36f26af55a69517f46b2f3083d7a12a07910415a28a6a6b80a9e449af8b5b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC9F | 17360 bytes |
font_01_sfnt_off00011a13.binee8fd50757009d7c5d91dff2c2044d827f52f49c9192a9b83da829c7c47db07a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A13 | 11420 bytes |
font_02_sfnt_off000134c5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134C5 | 16792 bytes |
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