Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 00:09
Static task
static1
Behavioral task
behavioral1
Sample
0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe
Resource
win10v2004-20240426-en
General
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Target
0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe
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Size
2.0MB
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MD5
75212dabdba487d0404009426e1603fe
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SHA1
d1b63bdc08dbc2a2b02be720135325ab93023cc6
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SHA256
0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010
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SHA512
09380b7cacc5a5ef85b655f9fdfa49eddc9d21e52ea9844d3c94c8f26b12aa131313698619de00c860d51317fca505c39c32c49b451568c9076f04c565db43e3
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SSDEEP
49152:7QzHt472D8JtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtKtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 13 IoCs
Processes:
resource yara_rule behavioral1/memory/1300-1-0x00000000041B0000-0x00000000042F9000-memory.dmp family_vidar_v7 behavioral1/memory/3616-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3616-70-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat375C.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation kat375C.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat375C.tmppid process 3616 kat375C.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:
0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exedescription pid process target process PID 1300 set thread context of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.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:
kat375C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat375C.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 8 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat375C.tmppid process 3616 kat375C.tmp 3616 kat375C.tmp 3616 kat375C.tmp 3616 kat375C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exekat375C.tmpcmd.exedescription pid process target process PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 1300 wrote to memory of 3616 1300 0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe kat375C.tmp PID 3616 wrote to memory of 388 3616 kat375C.tmp cmd.exe PID 3616 wrote to memory of 388 3616 kat375C.tmp cmd.exe PID 3616 wrote to memory of 388 3616 kat375C.tmp cmd.exe PID 388 wrote to memory of 8 388 cmd.exe timeout.exe PID 388 wrote to memory of 8 388 cmd.exe timeout.exe PID 388 wrote to memory of 8 388 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe"C:\Users\Admin\AppData\Local\Temp\0cb86ef36606d254603b9043259b9795111f66cf089c1fb0219870a157022010.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat375C.tmpC:\Users\Admin\AppData\Local\Temp\kat375C.tmp2⤵
- Checks computer location settings
- 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\kat375C.tmp" & rd /s /q "C:\ProgramData\AEGIJKEHCAKF" & 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
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat375C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1300-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/1300-1-0x00000000041B0000-0x00000000042F9000-memory.dmpFilesize
1.3MB
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memory/1300-0-0x0000000000900000-0x0000000000901000-memory.dmpFilesize
4KB
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memory/3616-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-22-0x0000000026010000-0x000000002626F000-memory.dmpFilesize
2.4MB
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memory/3616-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-70-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB