Analysis
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max time kernel
89s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-05-2024 12:13
Static task
static1
Behavioral task
behavioral1
Sample
7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe
Resource
win10v2004-20240508-en
General
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Target
7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe
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Size
1.9MB
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MD5
e783facbfa86774f4d9ffa84420efcf0
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SHA1
c05be441d10c97e7aca0430a76f54b3e9fb1f56a
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SHA256
7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1
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SHA512
1bfdc55447e5b0ddce6017dbad9bbbd067f6f230fe47dd9b4be19c4573d730ce26ceee8a95015a49ccf7b798d2a0ec173cc6496960f7885183fa55a6a5e32b42
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SSDEEP
49152:CdKfTn6v+JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral2/memory/236-3-0x0000000004180000-0x00000000042C9000-memory.dmp family_vidar_v7 behavioral2/memory/5056-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5056-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5056-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5056-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5056-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5056-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5056-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6B3D.tmppid process 5056 kat6B3D.tmp -
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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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:
7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exedescription pid process target process PID 236 set thread context of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6B3D.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6B3D.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat6B3D.tmppid process 5056 kat6B3D.tmp 5056 kat6B3D.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exedescription pid process target process PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp PID 236 wrote to memory of 5056 236 7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe kat6B3D.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe"C:\Users\Admin\AppData\Local\Temp\7cd9953e851584ed61e19ea599c4cab936989f5abd5a87aab84937a5589ac3e1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat6B3D.tmpC:\Users\Admin\AppData\Local\Temp\kat6B3D.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat6B3D.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/236-0-0x0000000002590000-0x0000000002591000-memory.dmpFilesize
4KB
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memory/236-3-0x0000000004180000-0x00000000042C9000-memory.dmpFilesize
1.3MB
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memory/236-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/5056-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5056-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5056-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5056-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5056-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5056-19-0x0000000019370000-0x00000000195CF000-memory.dmpFilesize
2.4MB
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memory/5056-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5056-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB