MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The PDF contains numerous links to external PDFs hosted on various domains, with a high number of distinct hosts suggesting a link farm designed to obscure the ultimate destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, reinforcing the phishing or malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 5
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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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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://korovin.org/site/img_ufiles/64193277984.pdf In PDF document text
- https://ceylanotel.com/firma/files/37996673050.pdfIn PDF document text
- http://hig-hegmann.de/userfiles/file/22319582838.pdfIn PDF document text
- http://louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/fodiboz.pdfIn PDF document text
- https://oolong-dining-co.com/webroot/editor-uploads/files/segasa.pdfIn PDF document text
- https://crcnueva.naturasoftware.com/uploads/images/files/furikatoweren.pdfIn PDF document text
- https://www.igescanada.com/ckfinder/userfiles/files/33643132760.pdfIn PDF document text
- https://khyatiinfotech.biz/ckfinder/userfiles/files/55782608609.pdfIn PDF document text
- https://semineebrasov.ro/printuri-fi/files/timisafevajumilujo.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/161441e892576d---8882115198.pdfIn PDF document text
- http://quetthe.com/upload/files/18286586534.pdfIn PDF document text
- https://funke.be/data/file/veforuguvo.pdfIn PDF document text
- https://itscebu.com/upload/file/20210917164644.pdfIn PDF document text
- https://festivaldelmaridaje.com/sgi_userfiles/userfiles/files/wixazarofurufuxasepudedej.pdfIn PDF document text
- http://naphotelbangkok.com/userfiles/files/fokimedebawone.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/9677803747.pdfIn PDF document text
- https://morganmethod.com/ci/userfiles/files/27895441220.pdfIn PDF document text
- https://ekransamara.ru/files/davugikuseserug.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/ligon.pdfIn PDF document text
- http://ambartakip.net/belgeler/file/duxojetagibesanube.pdfIn PDF document text
- http://tai-group.com/upload/files/6091850069.pdfIn PDF document text
- http://ahnil.com/userData/board/file/34294953735.pdfIn PDF document text
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/pixudezodade.pdfIn PDF document text
- https://fleschimmo.lu/userfiles/files/93770091180.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=uncharted+4+android+game+apk+downloadPDF 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_off0000caa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAA8 | 16736 bytes |
SHA-256: b2f62e91b8be2d7391469d6720581a7b9e95711cb45440a6003d0af94f8e8bd4 |
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font_01_sfnt_off0000f632.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF632 | 11056 bytes |
SHA-256: a2f6d458edbf3f704f733ef989833c221d02df30b67db72489ecdaaa86dd21ff |
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font_02_sfnt_off00010f9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F9D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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