MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple external URLs, including one hosted on a compromised WordPress upload directory, suggests the document is part of a link farm designed to redirect users to malicious content. The 'SE_ENABLE_LURE' heuristic indicates the document likely instructs the user to enable macros or editing, a common tactic for malware droppers.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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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://huntic.ru/uplcv?utm_term=how+to+enable+protected+content+in+chrome+android
- http://fioredda.com/userfiles/files/perupapufab.pdf
- https://searches.onlineconvey.com/userfiles/file/mudafetimupofe.pdf
- http://busangh.com/attfile/fckimg/file///202109167916_319846395.pdf
- http://www.santabriganti.org/admin/ckfinder/userfiles/files/gekutanajibujar.pdf
- http://konberdbio.com/upload/files/zibutojikevow.pdf
- http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/4295778875.pdf
- http://medicare-darmstadt.de/bilder/UserImages/file/lifed.pdf
- http://pasaru.com/upload/files/99764274133.pdf
- http://oxigensupplies.com/shipinc/userfiles/files/64962929905.pdf
- https://open-call.fr/uploaded/files/boxivesuxed.pdf
- http://fotostudiovaccari.it/userfiles/files/timegodulosenezakomiz.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161402afaf2d72---guzidetexarigevuvot.pdf
- http://wxbeimei.cn/upload/ckimg/files/202109190903426434.pdf
- http://dc-a0dcf319a153.breakthroughsport.com/userfiles/files/22765088071.pdf
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614215a3423a9---jafoziferurujelolu.pdf
- http://focalthai.com/file_media/file_image/file/66254602690.pdf
- http://parcroyale.hk/userfiles/jiloxitizile.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/95d9570ef473d41b01ecabc3e73c1009/lumaroz.pdf
- http://dichvubaove.online/upload/files/35823467168.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/16133ea1c92ea9---mazaxegevogorerazufediju.pdf
- http://studiolorenzoni.eu/userfiles/files/reneneraxata.pdf
- http://elijasprojekts.lv/files/file/95273762392.pdf
- http://constantcontinuity.com/membership/data/files/bofeziviloli.pdf
- http://kezheng.net/Upload/file/40251171052.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_off0000b0c9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0C9 | 16792 bytes |
font_01_sfnt_off0000c8e0.bind29f6023bfb42aa327a231cf0d02555ae0ff80f4a07255df4ea8ca17c9b401d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E0 | 10828 bytes |
font_02_sfnt_off0000e163.bin1bfeb8da55792da8a92a675deac73751fecd5c6079a1377929a1f3f232ce7d5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE163 | 15500 bytes |
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