MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with multiple URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly support this attack pattern.
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://crysiq.ru/uplcv?utm_term=yt+to+mp4+video+converter PDF link annotation
- https://westhigienia.hu/editor_up/19549850551.pdfIn PDF document text
- http://prplus4u.com/ckupload/files/vexobumipajaraxobebu.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/7eacb6cb3693759bce7de4f51836110b/8943188175.pdfIn PDF document text
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/jevavuj.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140187b3149a---53167103551.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/mupalifitimiguwajanusu.pdfIn PDF document text
- https://z87992961.com/upload/files/20210926000301.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/f72b3274bf937f7a783921a6ccf7eef9/wabutezuzi.pdfIn PDF document text
- https://trongtrucsolution.com/uploads/files/77015193554.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/vowubodesalewipite.pdfIn PDF document text
- http://ntep2008.com/UserFiles/File/dimijopanogape.pdfIn PDF document text
- http://elisa5888.com/shopadmin/upload/files/robufedutanezoxuzaka.pdfIn PDF document text
- http://esejsc.com/upload/files/fomeboli.pdfIn PDF document text
- http://guerrazzi.info/userfiles/files/6087699260.pdfIn PDF document text
- http://wolfroccatiassociati.it/userfiles/files/19304572656.pdfIn PDF document text
- https://behbehaniprojects.com/uploads/files/kofenotugajuriledasedor.pdfIn PDF document text
- http://tythb.cn/uploadfile/files/gikodabogovinevus.pdfIn PDF document text
- http://www.sctiec.com/up_files/FCK/file/jezazexuranilixiwaj.pdfIn PDF document text
- http://marinda.ru/pics/images/file/jijug.pdfIn PDF document text
- https://congtydaihai.com/upload/files/bevopivufumugilimugag.pdfIn PDF document text
- https://penal-garazh.ru/files/89402262991.pdfIn PDF document text
- https://skatrip.com/basefile/skatripcom/files/timopukubup.pdfIn PDF document text
- 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_off0000af88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF88 | 15256 bytes |
SHA-256: e4dec7e666899627dbc844019952530323cda77af69ab97790c60f5c99e66812 |
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font_01_sfnt_off0000d5d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5D5 | 10424 bytes |
SHA-256: fc438e5a9b62dcb3f81ae54ed128e57fa52b6dc284b0ad89f542d60070657b92 |
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font_02_sfnt_off0000ed6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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