Analysis
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max time kernel
91s -
max time network
92s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 01:01
Static task
static1
Behavioral task
behavioral1
Sample
06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe
Resource
win10v2004-20240508-en
General
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Target
06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe
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Size
2.0MB
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MD5
f2e7fc65f1a2e60994a0c885deb8f513
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SHA1
4a3a1f33eb46699e71918e33e08d527a6a7acb23
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SHA256
06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf
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SHA512
eaaa3a340beaef023aa2231425daf164e434e3e3d337074ce7fdfa614ab6c15cdf1112cb97c05fde861cfbb184e629fda18d018df91205b4fd01b741994a30f8
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SSDEEP
49152:s4K3x1vUOJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18OtIuoITsdZ
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
Processes:
resource yara_rule behavioral2/memory/4344-2-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral2/memory/3424-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-51-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3424-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3B82.tmppid process 3424 kat3B82.tmp -
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
Processes:
06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exedescription pid process target process PID 4344 set thread context of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp -
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.
Processes:
kat3B82.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3B82.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3232 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat3B82.tmppid process 3424 kat3B82.tmp 3424 kat3B82.tmp 3424 kat3B82.tmp 3424 kat3B82.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exekat3B82.tmpcmd.exedescription pid process target process PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 4344 wrote to memory of 3424 4344 06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe kat3B82.tmp PID 3424 wrote to memory of 1508 3424 kat3B82.tmp cmd.exe PID 3424 wrote to memory of 1508 3424 kat3B82.tmp cmd.exe PID 3424 wrote to memory of 1508 3424 kat3B82.tmp cmd.exe PID 1508 wrote to memory of 3232 1508 cmd.exe timeout.exe PID 1508 wrote to memory of 3232 1508 cmd.exe timeout.exe PID 1508 wrote to memory of 3232 1508 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe"C:\Users\Admin\AppData\Local\Temp\06c5fda18c11b3bbadb3d3ddb4a71ab73ba22b2e913d1c26a9ae1d91816d2ebf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3B82.tmpC:\Users\Admin\AppData\Local\Temp\kat3B82.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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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\kat3B82.tmp" & rd /s /q "C:\ProgramData\AAEGHJKJKKJD" & 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 Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3B82.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3424-51-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-19-0x0000000019360000-0x00000000195BF000-memory.dmpFilesize
2.4MB
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memory/3424-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3424-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4344-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/4344-2-0x0000000004080000-0x00000000041C9000-memory.dmpFilesize
1.3MB
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memory/4344-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB