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. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous links and the use of 'utm_term' parameters suggest an attempt to manipulate search engine results or engage in phishing by luring users to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://truongthanhco.vn/webroot/img/files/rukabegiz.pdf In PDF document text
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/mf6d2dl10bd8fc1ugc79onu4r6/gonaxasu.pdfIn PDF document text
- http://aromamahabaleshwar.com/ckfinder/userfiles/files/46129801608.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080285fb172c---rewokokixazireva.pdfIn PDF document text
- http://fsgzb.com/upfolder/e/files/20210726005734.pdfIn PDF document text
- http://tajesink.com/Uploadfiles/files/tasudedupajepiwojud.pdfIn PDF document text
- https://nikoljski.com/ckfinder/userfiles/files/97031168786.pdfIn PDF document text
- http://biomehl.com/images/content/files/nenegon.pdfIn PDF document text
- http://circuitoinsulargc.com/documentos/file/90348389383.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/cfc29fe2b5f908e46f93619744903886/12799136069.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c4a5396bac---vajixajurobedanepusatokuj.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/ac37e6b49ebe0b0fa9c797b7669b9b94/24472666347.pdfIn PDF document text
- https://triosms.com/userfiles/file/20740641602.pdfIn PDF document text
- http://zubrcup.by/files/files/11496288667.pdfIn PDF document text
- http://onlineexpert.in/userfiles/file/xokomej.pdfIn PDF document text
- http://firmykominkowe.pl/Obrazki/edytor/file/37890919766.pdfIn PDF document text
- http://cyuansheng.com/userfiles/file/fonafezivefaweve.pdfIn PDF document text
- http://www.kroonzuivel.nl/ckfinder/userfiles/files/fazulabuvitigumi.pdfIn PDF document text
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a230b23afaa---tusani.pdfIn PDF document text
- http://residencecarlofelice.com/userfiles/files/naxoguvadopuxiru.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/6e75fe6b4557096cb724d6dcbf70022c/72433553455.pdfIn PDF document text
- http://cuacuonnhanh.vn/Images_upload/files/wevasikokafupuna.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=chicken+biryani+seivathu+eppadi+in+tamil+language+pdfPDF 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_off0000b8ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d0d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0D1 | 11488 bytes |
SHA-256: bad9bb8ab8a7e0ac82e5db8c9c2062eab20706ac75439d4b45926339c5ee7c27 |
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font_02_sfnt_off0000eb6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB6F | 18068 bytes |
SHA-256: 4997f6ef1c915e0f50e1a2171b4e025e1a56c780f7eb40960f6e8e581a03a590 |
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