MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests the document may attempt to execute commands, possibly leveraging the embedded JavaScript.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://synerhu.ru/uplcv?utm_term=vector+processing+in+computer+architecture+pdf PDF link annotation
- http://anticacarsulaeborzoi.eu/userfiles/files/54469257132.pdfIn PDF document text
- http://uniondrygoods.com/fckeditor/userfiles/file/ruxativuzotaboseguk.pdfIn PDF document text
- https://movimientofamiliadejesus.com/images/uploaded/file/tezobatuse.pdfIn PDF document text
- http://qdcmd.com/data/files/buxotifom.pdfIn PDF document text
- http://upakuika.com/img/file/19931686927.pdfIn PDF document text
- https://hssanesteban.cl/files/66594646515.pdfIn macro / runtime command snippet
- http://geodeslaboratori.eu/userfiles/files/pelaxajemizasasitotuke.pdfIn macro / runtime command snippet
- http://icbiz.ru/userfiles/file/28231639085.pdfIn PDF document text
- http://gmart-express.com/demo/uploadpic/file/10245255384.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/83432474883.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c6f789148---36367008955.pdfIn PDF document text
- https://konchris.com/userfiles/file/1631066956.pdfIn PDF document text
- https://bushregenerators.info/userfiles/files/12644329727.pdfIn PDF document text
- https://zmiz.hr/userfiles/file/43571755545.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137a0fbec8ed---poduzagopote.pdfIn PDF document text
- http://cukiernia.eu/upload/files/50576774961.pdfIn PDF document text
- http://kronikarp.pl/ckfinder/userfiles/files/susizavozejukokewado.pdfIn PDF document text
- http://agendatourvietnam.com/hinhanh/file/bozurosopazejelalop.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/diwevesarebeteg.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/94113404609.pdfIn PDF document text
- http://wu-pao.com/upfiles/editor/files/89949383321.pdfIn PDF document text
- http://friend5190.xyz/js/ckfinder/userfiles/files/mamakikebudiz.pdfIn PDF document text
- http://upakuika.com/img/filIn macro / runtime command snippet
- 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_off0000d29d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD29D | 17856 bytes |
SHA-256: 851fd0f6c6040378025239126358358cca24aed801f6ea23abd61d63dbcca007 |
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font_01_sfnt_off00010177.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10177 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001198e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1198E | 11088 bytes |
SHA-256: 44b0ac439b5ac9858a72580ee857ce715f5a7003cae485ff5db8564c628d2a20 |
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