Analysis
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max time kernel
134s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 20:16
Static task
static1
Behavioral task
behavioral1
Sample
86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe
Resource
win10v2004-20240508-en
General
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Target
86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe
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Size
2.0MB
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MD5
7a35dffc3bef68e527516fce6c05b9c8
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SHA1
79c61bc59fe221c9dd457605a4e8454134e2d7e6
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SHA256
86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24
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SHA512
fad5e741f5e58ddc96a5b788d55f8ffe2fba6907d4034fec96f891f338eae53b4131623aad4420f41dd3d30ee91752bcf3cb2dc87eb655dd7777079dc26ac5cf
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SSDEEP
49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 10 IoCs
Processes:
resource yara_rule behavioral1/memory/912-1-0x00000000040C0000-0x0000000004209000-memory.dmp family_vidar_v7 behavioral1/memory/3368-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3368-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat449A.tmppid process 3368 kat449A.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:
86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exedescription pid process target process PID 912 set thread context of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat449A.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat449A.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat449A.tmppid process 3368 kat449A.tmp 3368 kat449A.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exedescription pid process target process PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp PID 912 wrote to memory of 3368 912 86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe kat449A.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe"C:\Users\Admin\AppData\Local\Temp\86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat449A.tmpC:\Users\Admin\AppData\Local\Temp\kat449A.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\kat449A.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/912-0-0x00000000007E0000-0x00000000007E1000-memory.dmpFilesize
4KB
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memory/912-1-0x00000000040C0000-0x0000000004209000-memory.dmpFilesize
1.3MB
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memory/912-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3368-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-18-0x000000001DC30000-0x000000001DE8F000-memory.dmpFilesize
2.4MB
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memory/3368-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3368-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB