Analysis
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max time kernel
89s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 02:56
Static task
static1
Behavioral task
behavioral1
Sample
1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe
Resource
win7-20240215-en
General
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Target
1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe
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Size
2.0MB
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MD5
1b049fe8c40e08c046c049b57df3373d
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SHA1
af55dc8970036f67eddb8bc588ba6e0ebe9a6605
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SHA256
1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b
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SHA512
0336b2378f7bccf89c6d115820f6f8947a609b0aa7860615fe26cb4dac4bc7a8e553867b32b074000d28f0dee7ec80ff743f90b27480051e04a8a6651175869d
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SSDEEP
49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ
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/2196-1-0x00000000040A0000-0x00000000041E9000-memory.dmp family_vidar_v7 behavioral2/memory/1696-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1696-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1696-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1696-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1696-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1696-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1696-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat43B0.tmppid process 1696 kat43B0.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:
1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exedescription pid process target process PID 2196 set thread context of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat43B0.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat43B0.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat43B0.tmppid process 1696 kat43B0.tmp 1696 kat43B0.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exedescription pid process target process PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp PID 2196 wrote to memory of 1696 2196 1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe kat43B0.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe"C:\Users\Admin\AppData\Local\Temp\1b6310d4b99134b1c8d8f42eca9c137e9b2ba8a325bc824def53e1f8d5c7234b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat43B0.tmpC:\Users\Admin\AppData\Local\Temp\kat43B0.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\kat43B0.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1696-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1696-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1696-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1696-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1696-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1696-20-0x000000001DC80000-0x000000001DEDF000-memory.dmpFilesize
2.4MB
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memory/1696-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1696-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2196-0-0x00000000007C0000-0x00000000007C1000-memory.dmpFilesize
4KB
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memory/2196-1-0x00000000040A0000-0x00000000041E9000-memory.dmpFilesize
1.3MB
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memory/2196-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB