MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which are associated with link farms and disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://inwebjor.ru/uplcv?utm_term=use+android+phone+as+pc PDF link annotation
- http://ahzycw.com/upload_fck/file/2021-9-6/20210906015021864075.pdfIn PDF document text
- http://xdata.pl/app/webroot/img/ckf/files/44600012165.pdfIn PDF document text
- https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/5835465541.pdfIn PDF document text
- http://zoldjogsi.hu/uploads/files/92398940324.pdfIn PDF document text
- http://111-orte.com/testarea/cwsCMSlight/media/files/nexewijiletimobimasuz.pdfIn PDF document text
- http://esllearningbydesign.com/app/webroot/files/file/31521138650.pdfIn PDF document text
- https://ptogel1.com/contents/files/28216367139.pdfIn PDF document text
- http://picart-personal.pl/fckupload/upload/file/tuxod.pdfIn PDF document text
- http://anthonyvienna.com/sites/default/files/file/vivet.pdfIn PDF document text
- https://catwalkdogcome.com/editor_upload_image/file/26155780335.pdfIn PDF document text
- https://nordavril.com/userfiles/file/91233819721.pdfIn PDF document text
- https://robustbrakes.com/administrator/imagetemp/file/wiwaposakunuxiduzakum.pdfIn PDF document text
- http://charmingcurls.se/upload/file/67358455352.pdfIn PDF document text
- http://karthikeyanjayaram.com/userfiles/file/48611960965.pdfIn PDF document text
- https://alpinismbihor.ro/app/webroot/files/userfiles/files/56522940090.pdfIn macro / runtime command snippet
- https://servicepapik.ro/files/wuwebijipe.pdfIn macro / runtime command snippet
- https://daotaolaixesontay.com/uploads/file/pavonesetararabaru.pdfIn PDF document text
- https://beautydent.hu/editor_up/80732692389.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/bd8f0d35a4204a5bdd7abb9369a3ecc9/bewodidototaxu.pdfIn PDF document text
- http://c-amc.com/upload/files/jideveto.pdfIn PDF document text
- http://open.ua/uploads/ckeditor/files/momamuxajisi.pdfIn PDF document text
- https://t2sc.me/userfiles/28502682751.pdfIn PDF document text
- https://kuni.ro/app/webroot/files/userfiles/files/65874226425.pdfIn PDF document text
- http://karthikeyanjayarIn 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_off0000b03f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB03F | 14516 bytes |
SHA-256: fbc1beae2d7bceb8353accff05e29eaab5e7804445c447623203e9a7eb502ef2 |
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font_01_sfnt_off0000d452.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD452 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ec69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC69 | 10476 bytes |
SHA-256: 894372f3a44a6d12d43eefd42f21850a2231d39c71ec870da785c002d6e5f1d0 |
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