Analysis
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max time kernel
134s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 21:46
Static task
static1
Behavioral task
behavioral1
Sample
eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe
Resource
win10v2004-20240426-en
General
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Target
eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe
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Size
2.0MB
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MD5
d7b59f7cdad358a9bf6208af08e4e23f
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SHA1
eae76e21628cbf0b5a51edf91636f769ec600df8
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SHA256
eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184
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SHA512
b7063e3933178e8256c3fbc96e2d920b1759edc5eaf3148e1d122567c0b9de41e2001ec5e26a1da90141092804e5af2f633372b3c9d10891e8fd8e39228c2119
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SSDEEP
49152:7QzHt472DAJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtetIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 13 IoCs
Processes:
resource yara_rule behavioral1/memory/1196-2-0x00000000041A0000-0x00000000042E9000-memory.dmp family_vidar_v7 behavioral1/memory/3032-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3032-65-0x0000000000400000-0x0000000000646000-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:
kat7937.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation kat7937.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat7937.tmppid process 3032 kat7937.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:
eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exedescription pid process target process PID 1196 set thread context of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.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:
kat7937.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7937.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4368 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat7937.tmppid process 3032 kat7937.tmp 3032 kat7937.tmp 3032 kat7937.tmp 3032 kat7937.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exekat7937.tmpcmd.exedescription pid process target process PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 1196 wrote to memory of 3032 1196 eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe kat7937.tmp PID 3032 wrote to memory of 768 3032 kat7937.tmp cmd.exe PID 3032 wrote to memory of 768 3032 kat7937.tmp cmd.exe PID 3032 wrote to memory of 768 3032 kat7937.tmp cmd.exe PID 768 wrote to memory of 4368 768 cmd.exe timeout.exe PID 768 wrote to memory of 4368 768 cmd.exe timeout.exe PID 768 wrote to memory of 4368 768 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe"C:\Users\Admin\AppData\Local\Temp\eed0c4c875d24f52620aae65d03f3341c585762a9bd331220f60dce84ada3184.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1196 -
C:\Users\Admin\AppData\Local\Temp\kat7937.tmpC:\Users\Admin\AppData\Local\Temp\kat7937.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat7937.tmp" & rd /s /q "C:\ProgramData\KJJJKFIIIJJJ" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4368
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat7937.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1196-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/1196-2-0x00000000041A0000-0x00000000042E9000-memory.dmpFilesize
1.3MB
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memory/1196-0-0x0000000000810000-0x0000000000811000-memory.dmpFilesize
4KB
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memory/3032-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-17-0x000000001DBF0000-0x000000001DE4F000-memory.dmpFilesize
2.4MB
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memory/3032-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-62-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3032-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB