MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/s4j3ms1l5431lls22hj3t7s050/pefesuxikuw.pdf In PDF document text
- https://tortugafilms.ca/adminfiles/file/44234034649.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087442395bb3---ralijiliz.pdfIn PDF document text
- http://www.fuchingrading.com/upload/file/sebusatepodirubavevalejeg.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1610a7133601b7---16102511814.pdfIn PDF document text
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/ac752a39aa301d55d0cea6c82b901316/75531014920.pdfIn PDF document text
- https://interface-graphique.com/upload/editor/file/pefiwofufopixuwusarezison.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/wumofowowefufedarixe.pdfIn PDF document text
- http://zhihepvb.com/upload/ckimg/files/202108091004037908.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2baf38d8a---rijufudebenunazulerux.pdfIn PDF document text
- https://flyingfish-stay.com/userfiles/file/3589399348.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087c4c594b7e---lawobipozefewobeke.pdfIn PDF document text
- http://kulturazebrak.cz/userfiles/14457327326.pdfIn PDF document text
- http://peterpan1996.it/userfiles/files/wedewagosugipasiwexovate.pdfIn PDF document text
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/37396693787.pdfIn PDF document text
- https://kingyao.com/uploadfiles/files/20210726_072925_9893.pdfIn PDF document text
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/q867n61tjsa2j68c59859dkf54/fajigiwamotejo.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160f01facdbae4---tewugagatuviwepikesi.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f883128c324---webifibesafalulopetatumam.pdfIn PDF document text
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/judebofunoralugilazurozaz.pdfIn PDF document text
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/50bb5ccc38c32de833fd6562bfc0a54e/zivuwotosumifu.pdfIn PDF document text
- https://apsco.ly/userfiles/files/muvivo.pdfIn PDF document text
- http://congtrinhnhaviet.vn/upload/files/nobabinoritabokiwir.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e29ebc0dc24---37048760949.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=solar+installation+guide+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_off0000ed27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED27 | 10848 bytes |
SHA-256: 30e0dfc04d487d0bd7f495a1ac6bb719f15d18ab8539540b24c1ed8c7d5c9eeb |
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font_01_sfnt_off00010608.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10608 | 17804 bytes |
SHA-256: 252b65f0df1e64611442791b7d0b0e63e1f0f5b32117cf746bd7a2086bd42ec4 |
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font_02_sfnt_off00013361.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13361 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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