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Analysis
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max time kernel
148s -
max time network
154s -
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, 20:07
Static task
static1
Behavioral task
behavioral1
Sample
188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe
Resource
win10v2004-20240426-en
General
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Target
188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe
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Size
2.0MB
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MD5
e003c7253e44890a674e49005772e747
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SHA1
0680969531cac5e6bde0602b2bd5cc44239ed143
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SHA256
188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af
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SHA512
d1e817db802faa8ea12d22fd15d8f86c21ecbb64d15f85d089f077bb4db5445600598f1092bbc0235775cfbd52757e29ec55bc8f678dcb7ac4f492ab5ef928c2
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SSDEEP
49152:7QzHt472D/JtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtBtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
resource yara_rule behavioral1/memory/872-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/872-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/872-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2100-2-0x00000000040C0000-0x0000000004209000-memory.dmp family_vidar_v7 behavioral1/memory/872-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/872-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/872-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/872-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 872 kat34EB.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 2100 set thread context of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 -
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 kat34EB.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 872 kat34EB.tmp 872 kat34EB.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86 PID 2100 wrote to memory of 872 2100 188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe"C:\Users\Admin\AppData\Local\Temp\188586fc32c6ce1fa2875913d6f4b38a33e1af87fa55c2fee05b8ca5698ba9af.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Users\Admin\AppData\Local\Temp\kat34EB.tmpC:\Users\Admin\AppData\Local\Temp\kat34EB.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:872
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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