MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm with numerous URLs pointing to other PDF files hosted on various websites, many of which appear to be compromised. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using disposable or compromised hosting for these links. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 https://iagclaims.endataclaims.com/ModCoreFilesUploaded/file/49762862985.pdf
- http://daindnc.com/fckeditor/userfiles/file/87607580300.pdf
- https://shidoremicrosys.com/media/luvixidolejopeba.pdf
- http://derp74.fooden.com/UserFiles/files/91245570043.pdf
- http://beijingxinzhi.com/userfiles/file/20211001115023_1880684009.pdf
- http://sromedical.com/file_media/file_image/file/suvogulafibe.pdf
- http://fitviewer.de/files/file/xabunesif.pdf
- http://luxcottage.ru/stroykamen/userfiles/file/sazuzirumula.pdf
- https://penal-garazh.ru/files/77894769329.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/161416d44125fb---ratolenejipigivuderejubum.pdf
- https://triptoboloyfoundation.org/editorsfiles/files/kapededotujevujanewazu.pdf
- http://hum-lucknow.org/test/fckeditor/file/98955805085.pdf
- http://cochemical.com/upload/files/romekurixox.pdf
- https://ladulceseguros.ar/noticias/fckeditor/file/zugapefoxoliwefusajadoj.pdf
- http://form4concrete.ru/pics/cont/file/31301117195.pdf
- https://tekstilkentrehber.com/upload/ckfinder/files/56677844563.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/8911417988128877c1f216a200c96ad0/vowiburovugojipivoses.pdf
- https://arabadvertise.com/userfiles/files/sosukeresik.pdf
- http://zensushidanapoint.com/uploads/files/50011341417.pdf
- https://audreyheselmans.com/_files/file/1725486506.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614b4fc9a69dc---7376205398.pdf
- http://feuerwehr-mittenwalde.de/mediathek/files/wupevirulorupimopunidavu.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147d52f5a8f6---66807688728.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=atonement+meaning+bible
- 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_off0000de50.bine71e80e7cbd0c286f9de8d55c8a2bfc95a3b7bf11e0d68219742f2f34532604e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE50 | 19704 bytes |
font_01_sfnt_off0001119d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1119D | 16792 bytes |
font_02_sfnt_off000129b4.bin2eaabf8fef2006f49512d51bcd41adb8fb434e203a4c8ed185e8e6847277453c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129B4 | 10304 bytes |
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