MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that employs social engineering tactics, specifically a 'ClickFix' lure, instructing the user to press Win+R or paste a command into a terminal. This is a common method to bypass macro restrictions and directly execute malicious commands. The document also contains numerous links to compromised WordPress upload directories, suggesting it is part of a link farm designed to host and distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 8
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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 https://wastran.ru/uplcv?utm_term=how+to+download+minecraft+bedrock+on+pc+free PDF link annotation
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607a88822b5c0---92353041990.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb40e035f78---1359625793.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160aba56747e66---41511670742.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160901b2559019---lomutivuniguzatubi.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf4a5dc2cb---94349119051.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160761a9845e25---6070462166.pdfIn PDF document text
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c31ae9f646---zaretamimizifakulo.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/na1pim588ek38m213fgvmi6jee/46180704001.pdfIn PDF document text
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607302641fd27---81434396896.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c24735e1f30---43235700109.pdfIn PDF document text
- https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c84380430a---54827596425.pdfIn PDF document text
- http://szakkepzosiklos.hu/upload/file/40067239955.pdfIn PDF document text
- https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/6bc407ab1048b8d7479659ba7b46d288/jitidimutugenufumemax.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9778376fa---75678856965.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160710f133a2c8---rekanopuvisenu.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/185990422484158de38d4b8e2323fc10/puvijamofuwisa.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/8fa06b59c5f59ac86ef8755bc5b7cd1e/tawokibikoxuwalunezaxivo.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/34f5a75303919892af799d1689cef9ec/wowojazizanimi.pdfIn PDF document text
- https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/c2db6049b72112cb72fd7377d75cf616/46264588938.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/8c1bb2534db4d6c0710093257c976867/ralaxanexeto.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/5a8n757ar6htk9frt23j5hsk8i/47120106039.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/a5f8d24e5dd4db8b653c21da0aca572c/31905948112.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8998a6f6c---33406882667.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a994b444127---68243622403.pdfIn PDF document text
- http://komputerzagrosze.pl/userfiles/file/gefimivumunijubi.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_off0000ef29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF29 | 17696 bytes |
SHA-256: 91a738844e6415692e1e7945fd19d5b4d8e3af1a54708b8d4e0a76864fcb3f53 |
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font_01_sfnt_off00011d27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001353e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1353E | 10920 bytes |
SHA-256: afda09f8e596a321e29d6df9c15e21faa5980b48cbd09cf0d3ef3e392ed4b24b |
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