MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs and is identified as a link farm on disposable hosting, suggesting it's used to redirect users to potentially harmful websites. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://cructi.ru/uplcv?utm_term=onfalitis+en+neonatos+pdf PDF link annotation
- http://xinyuemu.net/assets/202109/files/20210902212721699128.pdfIn PDF document text
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/ralodasokiselevosip.pdfIn PDF document text
- http://amoy-art.com/Upload/file/18380098895.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/27102687779.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613624d5d3e9b---vuzizitutunamo.pdfIn PDF document text
- http://manpukulivermore.com/uploads/files/ganoxejapop.pdfIn PDF document text
- http://local-minicab.com/survey/userfiles/files/47229633507.pdfIn PDF document text
- http://apsons.eu/files/file/jenogalu.pdfIn PDF document text
- https://m-astar.com/UserFiles/files/43026325946.pdfIn PDF document text
- http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/77500889832.pdfIn PDF document text
- https://akanaymatbaa.com/calisma2/files/uploads/21057126469.pdfIn PDF document text
- https://smartstone.ca/userfiles/files/27742774362.pdfIn PDF document text
- https://successalpha.team/upload/files/taronan.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16138de23f33ed---buzurixo.pdfIn PDF document text
- http://bio86.fr/userfiles/fichiers/vuvujajawu.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-9-8/20210908155451383520.pdfIn PDF document text
- https://smartcrm.cloud/upload/files/joluluvopunulavejomekitin.pdfIn PDF document text
- http://tiquital.com/documentos/file/rojatojit.pdfIn PDF document text
- http://bobiniauto.com/userfiles/file/41428200867.pdfIn PDF document text
- http://157.230.241.115/image/upload/File/45415690187.pdfPDF link annotation
- https://greenlandpark.com/uploads/files/7692200517.pdfIn PDF document text
- https://www.indoorclub-informa.com/boletines/img/file/47809779819.pdfIn PDF document text
- https://monographie.com/ckfinder/userfiles/files/lavilakonin.pdfIn PDF document text
- https://98ing.com/upload/ck/files/20210901_195517.pdfIn PDF document text
- http://dietetyka-24.pl/images/files/dumivamuvatox.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_off0000da1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA1F | 18992 bytes |
SHA-256: c549f1db6085d2017c72b728946d2a83a5e22ab216278b2f2bb851bbd64e1ce4 |
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font_01_sfnt_off00010a27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A27 | 10416 bytes |
SHA-256: c25b79f67c4033af961731abfa0baf9dbe2a11b96988ea92d11fceefce6c68a8 |
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font_02_sfnt_off000121de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121DE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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