Analysis
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max time kernel
132s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 22:05
Static task
static1
Behavioral task
behavioral1
Sample
e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe
Resource
win10v2004-20240508-en
General
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Target
e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe
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Size
2.0MB
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MD5
ce54cb4decf63e78d5d514a2d97e00ee
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SHA1
3eb8e9e2cc7e4fc7c6963e9528386b31414676f5
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SHA256
e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238
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SHA512
468046e483a57f63e93c986e5cb9cd5038a35ce047ad32db64151d1d32dc8bdb53d7bd651ddfaf48dde93a5a5f57864ac759c32b9316b75416253a76a42331fc
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SSDEEP
49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ
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 behavioral1/memory/3420-1-0x0000000003FE0000-0x0000000004129000-memory.dmp family_vidar_v7 behavioral1/memory/1888-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-53-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1888-69-0x0000000000400000-0x0000000000646000-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:
kat48E0.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation kat48E0.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat48E0.tmppid process 1888 kat48E0.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:
e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exedescription pid process target process PID 3420 set thread context of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.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:
kat48E0.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat48E0.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2648 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat48E0.tmppid process 1888 kat48E0.tmp 1888 kat48E0.tmp 1888 kat48E0.tmp 1888 kat48E0.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exekat48E0.tmpcmd.exedescription pid process target process PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 3420 wrote to memory of 1888 3420 e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe kat48E0.tmp PID 1888 wrote to memory of 4072 1888 kat48E0.tmp cmd.exe PID 1888 wrote to memory of 4072 1888 kat48E0.tmp cmd.exe PID 1888 wrote to memory of 4072 1888 kat48E0.tmp cmd.exe PID 4072 wrote to memory of 2648 4072 cmd.exe timeout.exe PID 4072 wrote to memory of 2648 4072 cmd.exe timeout.exe PID 4072 wrote to memory of 2648 4072 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe"C:\Users\Admin\AppData\Local\Temp\e1820daea835d2d27a214317209f4da4a53b795c66e9f4205e90c5d1db8dc238.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3420 -
C:\Users\Admin\AppData\Local\Temp\kat48E0.tmpC:\Users\Admin\AppData\Local\Temp\kat48E0.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp" & rd /s /q "C:\ProgramData\KEBGHCBAEGDH" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4072 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2648
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat48E0.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1888-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-20-0x000000001B7C0000-0x000000001BA1F000-memory.dmpFilesize
2.4MB
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memory/1888-69-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-53-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1888-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3420-0-0x0000000002380000-0x0000000002381000-memory.dmpFilesize
4KB
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memory/3420-1-0x0000000003FE0000-0x0000000004129000-memory.dmpFilesize
1.3MB
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memory/3420-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB