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Analysis
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max time kernel
129s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22/05/2024, 08:30
Static task
static1
Behavioral task
behavioral1
Sample
37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe
Resource
win10v2004-20240426-en
General
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Target
37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe
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Size
2.1MB
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MD5
7c6870f427c6c04597e8ab697826f01e
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SHA1
77ac2d4e0ba3ef02967ea36c8d688535b101bccd
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SHA256
37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59
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SHA512
10ee334480fb6084c46026e0c18bca9acb06b3c91015f235357c51aa37eb6371a480adeb2ae765d058708e2470a6e4523d557c4c6899db9b4db8602c2c9b112b
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SSDEEP
49152:N6uDuaS9refGcJtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9DctIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
resource yara_rule behavioral1/memory/2168-1-0x0000000004000000-0x0000000004149000-memory.dmp family_vidar_v7 behavioral1/memory/3388-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3388-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3388-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3388-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3388-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3388-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3388-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 3388 kat7AAE.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
description pid Process procid_target PID 2168 set thread context of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7AAE.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3388 kat7AAE.tmp 3388 kat7AAE.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87 PID 2168 wrote to memory of 3388 2168 37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe"C:\Users\Admin\AppData\Local\Temp\37c0f05ee6421cb398999a569599c1b25880c8c58fb89c1256f9a93091337d59.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmpC:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3388
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f