MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous URLs pointing to PDF files hosted on compromised websites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV also flagged this file as malicious, suggesting a phishing or malware distribution attempt. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://teplolux72.ru/upload/file/jidatu.pdf In PDF document text
- https://semangkabiji.com/contents/files/29678148833.pdfIn PDF document text
- http://unite-chem.cn/upload/files/37476363522.pdfIn PDF document text
- http://pawsandtiaras.com/ckfinder/userfiles/files/bowogadameke.pdfIn PDF document text
- http://studiogeologicotrilobite.com/userfiles/files/2568150782.pdfIn PDF document text
- https://phu-komplex.pl/pliki/file/loxamiseka.pdfIn PDF document text
- https://nepalihemp.com/ckfinder/userfiles/files/58171726794.pdfIn PDF document text
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/pjot3pqom6kc3a3t83uurntue6/41268034390.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613147fa510a1---1114071473.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312ca91bf85---sedujamudip.pdfIn PDF document text
- http://csc0351.com/userfiles/file/20210908183812_5zjvfk.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/35035612955.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/ke384e8nglo8bcgvuga2ebs449/peluweserajugaw.pdfIn PDF document text
- http://www.motocams.cz/ckfinder/userfiles/files/5887329581.pdfIn PDF document text
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/nivowidagudaripitisoja.pdfIn PDF document text
- http://aunay-sous-auneau.fr/ckfinder/userfiles/files/tolipo.pdfIn PDF document text
- https://diamond-marketing.cz/soubory/86829270603.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff76596396---42792846815.pdfIn PDF document text
- https://sevenhillsgroup.net/ckfinder/userfiles/files/kamefekotefes.pdfIn PDF document text
- http://upoart.com/ckfinder/userfiles/files/mudajimixawag.pdfIn PDF document text
- http://qtjdb.com/UploadFile/2021/09/08/file/20210908_135158_181.pdfIn PDF document text
- http://evopizza.lt/ckfinder/userfiles/files/netufixak.pdfIn PDF document text
- https://aordonez.com/images/contenidos/files/13358347260.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161336dd101eea---95224474381.pdfIn PDF document text
- https://sealordhotels.com/ckfinder/userfiles/files/kekimotumazerepinimisa.pdfIn PDF document text
- http://acsalma.hu/userfiles/files/ramivukulegu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=what+are+some+good+games+for+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_off0000ec40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010457.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10457 | 10748 bytes |
SHA-256: 2db05de8876f5bfc9638e0584c52dd8249d12604b8058c6f5a5f66671e712173 |
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font_02_sfnt_off00011cb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB5 | 17664 bytes |
SHA-256: a235d14c859cd815fa688df3d7a35fa55ed8b1dd2096b846a558414d331e7350 |
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