Analysis
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max time kernel
91s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 07:27
Static task
static1
Behavioral task
behavioral1
Sample
11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe
Resource
win10v2004-20240508-en
General
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Target
11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe
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Size
2.0MB
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MD5
e22efc95638f4c4e07fd7daba5bd3154
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SHA1
db73b614e897241d5321dc46ec25a302958ecd84
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SHA256
11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f
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SHA512
84dac88794f1692ccb88f09a6f8edff231e9524f79cd8af40414acdbacafbfe3fc1c79d9cc9a4a9190eb9cef02d23247129e8461875176840e96641375b75122
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SSDEEP
49152:s4K3x1vU2JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex182tIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2124-2-0x0000000004040000-0x0000000004189000-memory.dmp family_vidar_v7 behavioral2/memory/1804-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1804-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1804-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1804-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1804-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1804-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1804-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3614.tmppid process 1804 kat3614.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:
11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exedescription pid process target process PID 2124 set thread context of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3614.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3614.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3614.tmppid process 1804 kat3614.tmp 1804 kat3614.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exedescription pid process target process PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp PID 2124 wrote to memory of 1804 2124 11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe kat3614.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe"C:\Users\Admin\AppData\Local\Temp\11bda3957b2fd86e57b1677149c0558686c11e31ae500f671d4d9a44f6e6f48f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3614.tmpC:\Users\Admin\AppData\Local\Temp\kat3614.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\kat3614.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1804-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1804-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1804-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1804-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1804-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1804-19-0x0000000019390000-0x00000000195EF000-memory.dmpFilesize
2.4MB
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memory/1804-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1804-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2124-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/2124-2-0x0000000004040000-0x0000000004189000-memory.dmpFilesize
1.3MB
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memory/2124-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB