MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories. These links likely serve as a distribution point for further malicious content or phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9da858902---zozidiwekufikitebu.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fa7464bfb---55761560429.pdf
- http://muzycznescyzoryki.pl/userfiles/file/modusazu.pdf
- http://sqx.cc/upImgFile/file/20210513083629.pdf
- http://thankschicken.com/uploads/files/74641267733.pdf
- http://sevimticaret.net/userfiles/file/jixomebawof.pdf
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1cb5f77b60---47335875261.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/597455e21019ec46c33743e8e3bf65c2/79351313610.pdf
- http://sunjewelsonline.com/userfiles/file/19439512466.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/835a2794fdc423ccfd05d48afe45b0f8/48158928219.pdf
- http://abacusnancy.com/userfiles/file/rudusagelul.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/13764e1cae55d5c544ae2a624598de1c/91985614494.pdf
- http://poorclarescork.ie/images/75835611545.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606d16701fa82---xanuzavidemu.pdf
- http://cintabogor.com/Uploads/userfiles/files/47311399648.pdf
- http://unsersohn.ch/images/file/jaginokuv.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ade495648---kukotibexawejejo.pdf
- https://stayatrosetta.com/wp-content/plugins/super-forms/uploads/php/files/32nb8nk3hfh9qcs7v50u2nva4h/51403761781.pdf
- http://ms-krmelin.cz/app/webroot/files/files/86693357663.pdf
- http://vtaky.sk/media/file/14127826095.pdf
- http://jump360.co/upload/files/20210620110048.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160837f093fc61---mozafeduditobufijiw.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a6c460aa4---54934164046.pdf
- http://yule-sign.com/upload/editor/file/20210618030720.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=fairy+tail+100+year+quest+49
- 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_off0000e79a.binb3179b68e2e27b60baa95b9e186b788b1a9839ba68da60c968b66281a7e9d3e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE79A | 10632 bytes |
font_01_sfnt_off00010030.bin9003ce2eebf3184a6bd91659c1bf0f3fd707e1a81e95641c628c4a28665e6d36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10030 | 23336 bytes |
font_02_sfnt_off000133ea.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133EA | 16792 bytes |
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