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 ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, characteristic of a link farm used to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights this behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://erpos.sk/data/files/popafesunaxepirozuwir.pdf In PDF document text
- http://accessprecision.com/userfiles/file/6072136969.pdfIn PDF document text
- https://ladulceseguros.ar/noticias/fckeditor/file/zugapefoxoliwefusajadoj.pdfIn PDF document text
- http://tbvshungviet.com/upload/files/vitafan.pdfIn PDF document text
- http://gpe-el.pro/ckfinder/userfiles/files/17911663084.pdfIn PDF document text
- http://naim.naparts.com/images/fck/file/8075356286.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16133656d615cf---lidexetenoxulapuwixasus.pdfIn PDF document text
- http://litroshaber.net/resimler/files/redolutof.pdfIn PDF document text
- http://atsrealtyvietnam.com/upload/files/mufivivasolomumugozuda.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/nemisudifadejaludomanuveb.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136bec06dd4c---72009130863.pdfIn PDF document text
- https://dbhattacharjee.com/ckfinder/userfiles/files/49951768370.pdfIn PDF document text
- https://brune-schmuckwerk.de/ckfinder/userfiles/files/supipegibupur.pdfIn PDF document text
- https://xetnghiemadndanang.com/upload/userfiles/files/26349832351.pdfIn PDF document text
- https://shreegroupco.com/userfiles/file/61916778058.pdfIn PDF document text
- http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/lefikuful.pdfIn PDF document text
- http://snsi.jp/image/news_file/6902812548.pdfIn PDF document text
- http://jsushibrea.com/uploads/files/xirelorademabosogomokajo.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1613653f1566fe---buvotowiwojumuvavi.pdfIn PDF document text
- https://bulgariapools.com/contents/files/xiwogivusuf.pdfIn PDF document text
- https://weborder.cloud/userfiles/file///sononutokogonete.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+to+change+default+sms+app+on+androidPDF link annotation
- 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_off0000d416.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD416 | 11244 bytes |
SHA-256: d027ada805efb043c4e7662f3b835d75cbdca1fac665cc8301170880d4092299 |
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font_01_sfnt_off0000ee12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010624.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10624 | 17360 bytes |
SHA-256: e003b1b02db3369680af3eefdc4b784b3ad24b9fed63640addb3cfc2ac4b6ed8 |
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