MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, indicating an attempt to execute code within the PDF viewer. It also features a link farm pointing to numerous external URLs, many hosted on potentially compromised or disposable domains, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or delivering a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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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://garglob.ru/uplcv?utm_term=co+op+game+mobile PDF link annotation
- http://www.moyekolodin.com/files/58513374433.pdfIn PDF document text
- https://chokysitohang.com/Uploads/userfiles/files/94438486665.pdfIn PDF document text
- https://esofagopisa.it/userfiles/file/29164646818.pdfIn PDF document text
- https://www.iimranchi.ac.in/ckfinder/uploads/userfiles/files/jiwekinugavalegegorimud.pdfIn PDF document text
- https://floridainvestment.cz/files/file/sarej.pdfIn PDF document text
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/59207946873.pdfIn PDF document text
- https://calson.garment-pro.com/ckfinder/userfiles/files/23749694157.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/bfed7b074631545993772ee180128ac4/notagakavabidutova.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e68f65204e---89737407843.pdfIn PDF document text
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/678b7735e2f9f760567ec5f7cee247b1/tufudanebuwapujewisawu.pdfIn PDF document text
- http://hsi-international.com/ckfinder/userfiles/files/18978722.pdfIn PDF document text
- https://cungcapthitdetuoi.com/app/webroot/files/images/pages/files/lekudulekiv.pdfIn PDF document text
- https://winstar-tools.com/UserFiles/editor/file/86955191844.pdfIn PDF document text
- http://vino-charlie.cz/userfiles/file/labizilekevepujuninamura.pdfIn PDF document text
- https://fruitssupplier.com/app/webroot/img/files/70663312766.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/98945760485.pdfIn PDF document text
- http://dubilex.com/userfiles/files/19304264312.pdfIn PDF document text
- https://stephan-kratt.de/data/reiterhof/userfiles/file/55609770585.pdfIn PDF document text
- http://misosmile.com/upload/editor/files/lanarisuwelisemisagiruw.pdfIn PDF document text
- http://qapoll.com/2015/vat/upload/files/32094334188.pdfIn PDF document text
- http://lidaoxc.com/upload/files/41416401314.pdfIn PDF document text
- https://jmcoverseaspvtltd.com/uploads/files/77270335425.pdfIn PDF document text
- http://gianniarnaudo.com/userfiles/files/86274713135.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b350.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB350 | 18372 bytes |
SHA-256: e8e2607e7d522215d008c5f4c1f034b318086276ce2fb69ed134df47fcbb45a4 |
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font_01_sfnt_off0000e0cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0CC | 10296 bytes |
SHA-256: 0ddb34e6980de86dee9628d517e0bbd6387995b8b08ea6e871139fe194d3717e |
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font_02_sfnt_off0000f7c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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