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Analysis
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max time kernel
148s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
22/05/2024, 18:42
Static task
static1
Behavioral task
behavioral1
Sample
2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe
Resource
win10v2004-20240426-en
General
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Target
2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe
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Size
2.0MB
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MD5
c5bba6a25540c97bc71eb5409043db78
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SHA1
36a544742c22955baa81d4370c9855685a95cad0
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SHA256
2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804
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SHA512
e2cbc96a09555e5c7ca73711e9d7dd3820265a52b150b414a5d0b23b7a9e1cdbf8110a6593eace1591560a887c308b1b008b613edc8a66c4758d8f05aa38f038
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SSDEEP
49152:7QzHt472DhJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtbtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
resource yara_rule behavioral2/memory/3580-1-0x0000000004160000-0x00000000042A9000-memory.dmp family_vidar_v7 behavioral2/memory/3088-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3088-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3088-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3088-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3088-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3088-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3088-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 3088 kat414F.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 3580 set thread context of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 -
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 kat414F.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3088 kat414F.tmp 3088 kat414F.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79 PID 3580 wrote to memory of 3088 3580 2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe"C:\Users\Admin\AppData\Local\Temp\2c5529c6630d0742c077e37e382686108be774103e4183e674af5c41116df804.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3580 -
C:\Users\Admin\AppData\Local\Temp\kat414F.tmpC:\Users\Admin\AppData\Local\Temp\kat414F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3088
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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