Analysis
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max time kernel
148s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
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submitted
25-05-2024 09:00
General
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Target
efb276959f457b244fc96a91999e44d713b6a011b0a77e94987f38db413c3619.exe
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Size
2.0MB
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MD5
06a2cd3144a81af7b6e1188225a2044d
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SHA1
73021c40ee8ca1500c3cf7dfc7a8e5e9cdbd6ff7
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SHA256
efb276959f457b244fc96a91999e44d713b6a011b0a77e94987f38db413c3619
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SHA512
6ababd00fdb61b72b356d8af0517901b171c5220c5837de608733f7c32e9e979ac895d600fa58fbc3b3fbc468d9d7894d0db4553c77c15d3738b2b474748530b
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SSDEEP
49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
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Stealc
Stealc is an infostealer written in C++.
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Vidar
Vidar is an infostealer based on Arkei stealer.
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\efb276959f457b244fc96a91999e44d713b6a011b0a77e94987f38db413c3619.exe"C:\Users\Admin\AppData\Local\Temp\efb276959f457b244fc96a91999e44d713b6a011b0a77e94987f38db413c3619.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat639C.tmpC:\Users\Admin\AppData\Local\Temp\kat639C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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Filesize
4KB
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Filesize
1.3MB
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Filesize
2.0MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.4MB
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Filesize
2.3MB
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Filesize
2.3MB