Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 21:05
Static task
static1
Behavioral task
behavioral1
Sample
861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe
Resource
win10v2004-20240508-en
General
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Target
861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe
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Size
2.0MB
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MD5
14231efb0c56ea43b9f2ef328540f07a
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SHA1
0f358db9469597b5424385b30b52c9680d971fb4
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SHA256
861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce
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SHA512
c680bc5514fabe66cf9a916a787cfe7ac28299d98b8ffa9d046ee77919ae1068b12c2c82d48fed5752c951ccc43ca5ed90726b2aed7fa8706dc5eba685c77de8
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SSDEEP
49152:7QzHt472DwJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtatIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 14 IoCs
Processes:
resource yara_rule behavioral1/memory/3668-1-0x00000000041E0000-0x0000000004329000-memory.dmp family_vidar_v7 behavioral1/memory/976-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/976-66-0x0000000000400000-0x0000000000646000-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:
kat47D6.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation kat47D6.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat47D6.tmppid process 976 kat47D6.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:
861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exedescription pid process target process PID 3668 set thread context of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.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:
kat47D6.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat47D6.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4224 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat47D6.tmppid process 976 kat47D6.tmp 976 kat47D6.tmp 976 kat47D6.tmp 976 kat47D6.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exekat47D6.tmpcmd.exedescription pid process target process PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 3668 wrote to memory of 976 3668 861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe kat47D6.tmp PID 976 wrote to memory of 3604 976 kat47D6.tmp cmd.exe PID 976 wrote to memory of 3604 976 kat47D6.tmp cmd.exe PID 976 wrote to memory of 3604 976 kat47D6.tmp cmd.exe PID 3604 wrote to memory of 4224 3604 cmd.exe timeout.exe PID 3604 wrote to memory of 4224 3604 cmd.exe timeout.exe PID 3604 wrote to memory of 4224 3604 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe"C:\Users\Admin\AppData\Local\Temp\861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3668 -
C:\Users\Admin\AppData\Local\Temp\kat47D6.tmpC:\Users\Admin\AppData\Local\Temp\kat47D6.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat47D6.tmp" & rd /s /q "C:\ProgramData\HJJEGCAAECBF" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4224
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f