Analysis
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max time kernel
90s -
max time network
93s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
21-05-2024 19:23
Static task
static1
Behavioral task
behavioral1
Sample
ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe
Resource
win10v2004-20240508-en
General
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Target
ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe
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Size
2.1MB
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MD5
1356dc8c03d7d02e826b93e90b7c9322
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SHA1
88ce71cec9895dcd9d1c6586d7388b60328b94fb
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SHA256
ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a
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SHA512
df4af023172160e586bf0850b3ad562bb72c87d063075f7bb7f121e2b2f05b6c224c554c3145b61dcb39fa6df699bb25e7e0c649657928db1c134705f9a614a3
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SSDEEP
49152:N6uDuaS9refeoJtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9LotIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 9 IoCs
Processes:
resource yara_rule behavioral2/memory/3876-1-0x0000000004040000-0x0000000004189000-memory.dmp family_vidar_v7 behavioral2/memory/2948-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2948-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat378B.tmppid process 2948 kat378B.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:
ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exedescription pid process target process PID 3876 set thread context of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat378B.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat378B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat378B.tmppid process 2948 kat378B.tmp 2948 kat378B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exedescription pid process target process PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp PID 3876 wrote to memory of 2948 3876 ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe kat378B.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe"C:\Users\Admin\AppData\Local\Temp\ba6586bd778e49eacc224799b3bccde533727d00c7492b754ee7c03eb2219d5a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3876 -
C:\Users\Admin\AppData\Local\Temp\kat378B.tmpC:\Users\Admin\AppData\Local\Temp\kat378B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2948
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f