Analysis
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max time kernel
91s -
max time network
129s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-06-2024 09:41
Static task
static1
Behavioral task
behavioral1
Sample
45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe
Resource
win10v2004-20240226-en
General
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Target
45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe
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Size
1.8MB
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MD5
570928696721e1a33f784109cc578f82
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SHA1
a617c1e9f11086fe970e00c617f0b29470ef06c2
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SHA256
45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163
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SHA512
ddd9c28a9cdaf1ebc8eefd4424fdd8a5ce36782d895b62083c692475a17682d48f618d5613a77544f566f0952b35b023aa48d8f02ac2cd901e2c85365f8e2495
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SSDEEP
24576:W7YfUB7F1931tbjYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbjYa8aesY3Ot4N7G/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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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/396-2-0x0000000004050000-0x000000000419C000-memory.dmp family_vidar_v7 behavioral2/memory/3160-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3160-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3160-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3160-24-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3160-25-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3160-42-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3160-43-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat9143.tmppid process 3160 kat9143.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:
45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exedescription pid process target process PID 396 set thread context of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat9143.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat9143.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat9143.tmppid process 3160 kat9143.tmp 3160 kat9143.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exedescription pid process target process PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp PID 396 wrote to memory of 3160 396 45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe kat9143.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe"C:\Users\Admin\AppData\Local\Temp\45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:396 -
C:\Users\Admin\AppData\Local\Temp\kat9143.tmpC:\Users\Admin\AppData\Local\Temp\kat9143.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3160
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f