MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1553.005 Security Software Installation
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a high number of links to potentially compromised websites, suggesting a phishing or malware distribution attempt. Notably, the document contains an instruction to disable security software, which is a strong indicator of malicious intent to bypass defenses and likely download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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 https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/851a4b70857e5c009aa5099077b18ad8/10013508854.pdf
- https://alasclub.gr/neuro/ckfinder/userfiles/files/39098611866.pdf
- http://altinellerinsaat.net/UserFiles/file/zowuremuvado.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608827cc20bf9---37992943633.pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a543345b586---rixevasawim.pdf
- http://originalcheck.it/public/img_admin/file///35142763216.pdf
- http://www.toptehnik.si/images/88178887134.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/b9ncu2ndihpjkggtu0g9r1gfi2/kodusamoromolavoxoguzag.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/a628097beed248eed960f456ba5cf947/xubuno.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/ffcd113d3fb9d2a7e2aad421528cffa1/90140439126.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/0hjcvb3ous5p2mdl1nsksp2e00/51289779125.pdf
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/38efabc7f7dbf9c277a9c190067e6e27/jivorigosiledavapuve.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ccc48159e9---25376864851.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/d9b3899dcff03328a48a21578f5ab841/37278539221.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=acrobat+reader+add+bookmark
- 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_off0000e80d.bine8d9f610962152e0a5f0728c25a9235127ea5ed9815009915888e1ecb56b1e05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE80D | 16660 bytes |
font_01_sfnt_off00011390.bin8ac9e5dddd44a208e725498a19f9fcd3836ceb0cbadf1f9d33c487befdc48d2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11390 | 10332 bytes |
font_02_sfnt_off00012af1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AF1 | 16792 bytes |
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