MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to lure users to external, potentially harmful, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/843990ebf23a509089dfd68a8499f437/1104552630.pdf In PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/e315ceeb2bed97b976b9a3df5dd78927/suxekafowuzelivinoke.pdfIn PDF document text
- http://zzquansu.cn/d/files/70926380117.pdfIn PDF document text
- http://www.taxivanclass.com/uploads/ckfinder/files/47537818356.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f44ea67328---vabefujopowewodadegopanod.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/7430d9ced38f548e19392b67e9d2f5d8/sidejijazenuburopisunose.pdfIn PDF document text
- http://sentezetutmerkezi.com/upload/ckfinder/files/55348351279.pdfIn PDF document text
- http://pmrs.ps/userfiles/file/gigadijixabob.pdfIn PDF document text
- https://gretajensen.com/ckfinder/userfiles/files/84577496495.pdfIn PDF document text
- http://stlnsk.ru/uploads/file/fidivika.pdfIn PDF document text
- http://www.verneteco.com/ckfinder/userfiles/files/39728870856.pdfIn PDF document text
- https://escolaalfa.com/userfiles/file/740228912.pdfIn PDF document text
- http://sial.pl/galeria/file/lamodedaxero.pdfIn PDF document text
- https://wigs4less.net/nbloom/fckuploads/file/56700868232.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/6ea6b655cf76149f599bbbd7221bbe51/93730918232.pdfIn PDF document text
- https://arabadvertise.com/userfiles/files/68617053196.pdfIn PDF document text
- http://dayuntang.com/assets/uploads/ckedit/files/20210907163132.pdfIn PDF document text
- https://ww150004.linebot.net/upfile/files/20210918105039.pdfIn PDF document text
- http://alptw.com/images/files/wujurilunetenomigalitoz.pdfIn PDF document text
- http://artstudiodesign.it/userfiles/files/15080331531.pdfIn PDF document text
- http://areawifi.com/DESARROLLO/userfiles/files/49946987586.pdfIn PDF document text
- http://shijijiaming.net/filespath/files/20210917143850.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+prevent+app+from+being+killed+androidPDF 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_off0000d502.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD502 | 11048 bytes |
SHA-256: eac20125439569b7b169dde77f76532c69c071f6a2a582a749bead7aed51f422 |
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font_01_sfnt_off0000ee40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010652.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10652 | 17868 bytes |
SHA-256: 058d5f189871e1ac6fa606a4902f429cf510a8408261ba102a901dc2ecf571aa |
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