MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable hosting sites. The presence of numerous embedded URLs, many pointing to potentially compromised CMS uploads, strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://datev.hu/ckfinder/userfiles/files/72623507180.pdf
- http://kyea.org/imageuploads/lozozufiralamox.pdf
- http://broadgatecapital.com/userfiles/file/57399700011.pdf
- http://rkmaster.ru/uploads/files/17379436536.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/otlgbo0gsqmu4s42rcbipr8lk7/dalemebezixanakevudoweto.pdf
- http://tingchucontrol.com/Uploadfiles/files/tovedapivuz.pdf
- https://ofly.om-digitalsolutions.cn/upload/files/59832022909.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/rcfg5vn9pud54nouk161h7muuc/68488251297.pdf
- http://mp-journal.com/media/file/62662361642.pdf
- https://sunsetlearningcenter.com/userfiles/file/xakubadanitusavisezig.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16132b0d2ebfad---faguw.pdf
- http://jsushibrea.com/uploads/files/devukuloneve.pdf
- http://redskap.ru/userfiles/file/xipefukekajup.pdf
- http://studioagronomoserragiotto.eu/userfiles/files/68061829668.pdf
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/bidurugowunebumidimimu.pdf
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/pifetazukoruxine.pdf
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/garapajilefuvopusajo.pdf
- http://businessdevelopmentcenter.pl/uploads/userfiles/files/41680106194.pdf
- http://ykzn8.com/upfiles/editor/files/93732718286.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16130ac438d0cc---42114790945.pdf
- http://www.aportecnica.com/imagenes/editor/file/luwukum.pdf
- http://bellina.pl/userfiles/file/36561318567.pdf
- https://www.sensiblemachines.com/ckfinder/core/connector/php/files/59260290557.pdf
- http://hoanhaochemical.com/uploads/files/53873950759.pdf
- http://paletydozahrady.cz/ckfinder/userfiles/files/mijisafufomigawaj.pdf
- https://gretajensen.com/ckfinder/userfiles/files/51089371874.pdf
- http://autoneza.cz/UserFiles/File/39563364469.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=watch+private+instagram
- 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_off0000e9ef.bin65809db6914f7c7208568cfc44d95bfcd9fa0e0a309517d2aedb477d661990ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9EF | 18464 bytes |
font_01_sfnt_off000119e6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119E6 | 16792 bytes |
font_02_sfnt_off000131fd.bin4d64f230edf522a70e7c07e2a9e2485e517d9dd4fb4cb6eb79f54696108699b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131FD | 10716 bytes |
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