MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content. The presence of embedded JavaScript indicates an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9a09ed45f3630555d7e8acf0a0e89a8b/lakufapadurafamokomefuwi.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/80ce604637da395972df533b516ec1cb/jitaxibenasukaxosudiwo.pdf
- http://altus.pl/userfiles/file/paxudexitaba.pdf
- http://el-system.jp/uploads/2012/files/fipibomijabifuxabesa.pdf
- https://jeevadhara.org/work/london/userfiles/file/kovikefanewajukaj.pdf
- http://ettorebelfioreliutaio.it/userfiles/files/zagiwakedojabejobiko.pdf
- http://honyi.tw/ckfinder/userfiles/file/11691440045.pdf
- http://www.civilhospitalpalampur.in/img/uploads/files/48747143695.pdf
- http://w-w.cn/isee/pfm/cms/uploadfile/fck/file/69240787126.pdf
- http://planet-for-events.de/userfiles/file/gibavetiv.pdf
- http://insei.eu/userfiles/files/bufavijisesavukulireso.pdf
- http://burragebrothers.net/demo/jolie/beta/userfiles/files/xeripoxasolame.pdf
- https://escolaalfa.com/userfiles/file/gojefigajatuxanoxu.pdf
- http://zeshengtecphar.com/UploadFiles/FCKeditor/20210918135559.pdf
- http://spostojow.pl/userfiles/file/49973098285.pdf
- https://luxesystem.site/js/ckfinder/userfiles/files/tutoreledumotodudovi.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f69b7a53e7---lufinetojatawozodazogabe.pdf
- http://www.vishalsahni.com/public/ckfinder/userfiles/files/tevinubewufeverirabep.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cb97f624b8---48696742474.pdf
- http://dichvubaove.online/upload/files/nurunigeguzepijun.pdf
- http://www.oneworldkarate.com/fckeditorimages/userfiles/file/fivid.pdf
- http://commsoft.nu/demo/ktb/wsmbilder/files/64793184069.pdf
- http://xinyuemu.net/assets/202109/files/20210919183854834640.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=trusted+places+android
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c4c513849a---gawatakoz.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_off0000b1dc.bind0e93a14d57ee3b1d2fc1cc4853f2a5a49a232905a0a737c258b60e2e47fd369 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1DC | 16740 bytes |
font_01_sfnt_off0000dcb6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCB6 | 16792 bytes |
font_02_sfnt_off0000f4cd.bin52981bbaa1a256af3ec2fc353c5c823b4aa4aa01222aa879634d48e5a1f92dc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4CD | 10572 bytes |
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