Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
25-05-2024 00:19
General
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Target
8657e3df341135059bc2ee1bd83a650b4621a8f66619c54e7db843dff46a05db.exe
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Size
2.4MB
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MD5
0898e7dae093d703034b7690c620a1d4
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SHA1
eb101867cdac2af77892276f44e92a7927663e0c
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SHA256
8657e3df341135059bc2ee1bd83a650b4621a8f66619c54e7db843dff46a05db
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SHA512
2b0408620d70819998c45c3faab421c12f981f20f94847ad6e31add14bb264eadb0c7ba66e1a91c1e65da6389c54136301342f3609879393107a62b209c09fca
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SSDEEP
49152:jxIRJF1HL+VdX68kU6JtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68d6tIuoITsdZ
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 14 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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Detect binaries embedding considerable number of MFA browser extension IDs. 8 IoCs
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Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 8 IoCs
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Detects Windows executables referencing non-Windows User-Agents 13 IoCs
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 8 IoCs
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 13 IoCs
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Detects executables containing potential Windows Defender anti-emulation checks 13 IoCs
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 2 IoCs
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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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Delays execution with timeout.exe 1 IoCs
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Modifies system certificate store 2 TTPs 3 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\8657e3df341135059bc2ee1bd83a650b4621a8f66619c54e7db843dff46a05db.exe"C:\Users\Admin\AppData\Local\Temp\8657e3df341135059bc2ee1bd83a650b4621a8f66619c54e7db843dff46a05db.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\katCC06.tmpC:\Users\Admin\AppData\Local\Temp\katCC06.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c start "" "C:\ProgramData\JEGHJKFHJJ.exe"3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katCC06.tmp" & rd /s /q "C:\ProgramData\CAKFIJDHJEGI" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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Filesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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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
2.3MB
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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
2.3MB
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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
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Filesize
2.3MB
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Filesize
1.3MB
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Filesize
2.5MB
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Filesize
4KB