Analysis
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max time kernel
91s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 20:48
Static task
static1
Behavioral task
behavioral1
Sample
d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe
Resource
win10v2004-20240426-en
General
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Target
d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe
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Size
2.0MB
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MD5
475a47351c1c803db995a45db309616e
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SHA1
bb07d4be98ff53f1c755848524c110ee4c9c50a3
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SHA256
d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e
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SHA512
dc7817c1314079b17837f57d3e19e0c6b4987e76124a5299060a81af0898de6e98152a9a0793417ab95a82dd608bc246377f10cf93a4a9f2e06d4b3c65138574
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SSDEEP
49152:7QzHt472DfJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtFtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2300-2-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral2/memory/5016-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5016-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5016-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5016-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5016-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5016-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/5016-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat2D98.tmppid process 5016 kat2D98.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:
d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exedescription pid process target process PID 2300 set thread context of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat2D98.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat2D98.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat2D98.tmppid process 5016 kat2D98.tmp 5016 kat2D98.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exedescription pid process target process PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp PID 2300 wrote to memory of 5016 2300 d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe kat2D98.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe"C:\Users\Admin\AppData\Local\Temp\d91dd35b15998f708fb4864aaad94b563a6d508dc773cb9f6495e9ee061b6c2e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat2D98.tmpC:\Users\Admin\AppData\Local\Temp\kat2D98.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat2D98.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2300-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/2300-2-0x0000000004080000-0x00000000041C9000-memory.dmpFilesize
1.3MB
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memory/2300-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/5016-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5016-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5016-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5016-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5016-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5016-22-0x000000001DCB0000-0x000000001DF0F000-memory.dmpFilesize
2.4MB
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memory/5016-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5016-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB