MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many of which are disguised as an 'app update' lure. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document attempts to trick the user into installing a browser extension or update. The embedded URL 'https://traffking.ru/123?keyword=fishdom+app+update' is likely the initial landing page for this social engineering attempt. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://traffking.ru/123?keyword=fishdom+app+update
- https://latujajadaf.weebly.com/uploads/1/3/4/5/134593938/zowitimazib-jakalozedew.pdf
- https://cdn-cms.f-static.net/uploads/4387938/normal_5f923570ce357.pdf
- https://cdn-cms.f-static.net/uploads/4380854/normal_5f8eb57744672.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://jopafez.files.wordpress.com/2020/11/15872170774.pdf
- https://uploads.strikinglycdn.com/files/80868ad8-d975-40e8-b104-be0cdfd50fe5/8692692382.pdf
- https://nizowowe.files.wordpress.com/2020/11/midesifitir.pdf
- https://uploads.strikinglycdn.com/files/4540e321-c219-4fc4-a247-8b490087c296/piwebilofeko.pdf
- https://vadazigifexe.files.wordpress.com/2020/11/merozasopegujibe.pdf
- https://uploads.strikinglycdn.com/files/978ee871-5f46-4cb9-a8ab-1407fe409f98/pesuvopojol.pdf
- https://dumigezeb.files.wordpress.com/2020/11/76136253159.pdf
- https://uploads.strikinglycdn.com/files/8cea7df0-00b5-4562-902b-42f8ba202289/xerejop.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000619e.bin843c0f95b8933cefb29879039f9fa2b3552ca321ee0b644d043a570fd12872b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x619E | 5028 bytes |
font_01_sfnt_off00007291.bin6d3e12143e24e9c69a96f95fbf9ce36ceb2b6f11803dda8a1c9fcde49d1210a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7291 | 10876 bytes |
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