MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm hosted on compromised CMS uploads. Multiple URLs point to PDF files hosted on various domains, suggesting an attempt to distribute malicious content or phish users. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate effort to create a network of links on potentially disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161333a4c2168c---tovokixosujige.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16152a17a9d824---68669940549.pdf
- http://lamardaegu.com/upfile/user/file/xuxurazadozedojijixag.pdf
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/kq946hedpmnel2lhsgh0trcoj2/92123164879.pdf
- http://boletos.luzservicos.com/ckfinder/userfiles/files/58294758813.pdf
- https://mhreng.com/userfiles/file/28697689302.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/161408d892f231---japiwupasusadetedurosi.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/860baed64b02334efb09338059c0a0c2/fidamotarepevowufowali.pdf
- https://sledovani2.gpshlidac.cz/www/userfiles/files/99666431120.pdf
- http://www.colormotion.cz/UserFiles/file/94411988391.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614efe9d9edc1---pokegofixodi.pdf
- http://yonseri.org/userfiles/files/40536604432.pdf
- http://women-for-marriage.com/ckfinder/userfiles/files/mijasutodu.pdf
- http://rainternacional.com/userfiles/file/55842045872.pdf
- http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/lewema.pdf
- http://hawaii-resort.info/images/blog/file/5512248149.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146799d8ee29---60499693513.pdf
- https://31app.com/userfiles/file/11815199994.pdf
- http://medob.org/SITE/files/editor/file/54884433472.pdf
- http://abbeytraining.net/userfiles/file/pifoxegajazuguvovifizex.pdf
- https://cargobull.cz/res/file/xagupos.pdf
- http://salocchi.it/userfiles/files/mopitigop.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=pretty+in+pink+soundtrack
- 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_off0000f9c6.bin5ddcbbaeb3e96085e7468cfa9f17dc2f1f1fc918a72ac947dd7e7e73f44ad9b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9C6 | 10768 bytes |
font_01_sfnt_off000112b8.bin3e2f2fabc3289ac1f21686168b08aed49a96224aa6411e182d2125c899d5c15d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112B8 | 19684 bytes |
font_02_sfnt_off00014613.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14613 | 16792 bytes |
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