Analysis
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max time kernel
134s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 13:16
Static task
static1
Behavioral task
behavioral1
Sample
4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe
Resource
win7-20240221-en
General
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Target
4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe
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Size
2.0MB
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MD5
f820905db756699c0293b7b5d461db0a
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SHA1
8a8e665f5bd05f8fb43a2e1c54464c5cb77f6a02
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SHA256
4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808
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SHA512
d15180f4ce9564fb5625e47cf8192e47bd0c9d80286cf77776e990501ad69bdb90c11c8fb35e19d4ac59c67af412f5d2a8043d40d672be9e5335ca18bd7c06d4
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SSDEEP
49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ
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/4648-1-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral2/memory/2452-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2452-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2452-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2452-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2452-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2452-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2452-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat448B.tmppid process 2452 kat448B.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:
4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exedescription pid process target process PID 4648 set thread context of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat448B.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat448B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat448B.tmppid process 2452 kat448B.tmp 2452 kat448B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exedescription pid process target process PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp PID 4648 wrote to memory of 2452 4648 4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe kat448B.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe"C:\Users\Admin\AppData\Local\Temp\4035544b17ffa7d3dff6473f7116194d0409df80e8c5c94a88f1bf2614061808.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat448B.tmpC:\Users\Admin\AppData\Local\Temp\kat448B.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\kat448B.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2452-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2452-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2452-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2452-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2452-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2452-17-0x000000001B760000-0x000000001B9BF000-memory.dmpFilesize
2.4MB
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memory/2452-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2452-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4648-0-0x0000000000790000-0x0000000000791000-memory.dmpFilesize
4KB
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memory/4648-1-0x0000000004030000-0x0000000004179000-memory.dmpFilesize
1.3MB
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memory/4648-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB