Analysis
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max time kernel
92s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 16:29
Static task
static1
Behavioral task
behavioral1
Sample
36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe
Resource
win10v2004-20240426-en
General
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Target
36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe
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Size
2.0MB
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MD5
5dd0c0d932410116b293e85fc799566e
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SHA1
76396c94ed285a9323c477475b75cb7b5881d446
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SHA256
36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda
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SHA512
643a0fc0f76957fcf0d3b5e434ca8928701ca500c944d6ae8f3db6700ec2026352115e4a52dea1c92ee11daf3993fd653ee9ff636c8dbf2e60266a29d5a3c52e
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SSDEEP
49152:OePpQElJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEltIuoITsdZ
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 behavioral1/memory/2900-2-0x00000000041A0000-0x00000000042E9000-memory.dmp family_vidar_v7 behavioral1/memory/2496-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2496-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2496-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2496-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2496-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2496-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2496-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3018.tmppid process 2496 kat3018.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:
36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exedescription pid process target process PID 2900 set thread context of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3018.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3018.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3018.tmppid process 2496 kat3018.tmp 2496 kat3018.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exedescription pid process target process PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp PID 2900 wrote to memory of 2496 2900 36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe kat3018.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe"C:\Users\Admin\AppData\Local\Temp\36f5ebad0145e0e91e2d7552c08b9df546cb3a776735481ac49107b97e76ffda.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3018.tmpC:\Users\Admin\AppData\Local\Temp\kat3018.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\kat3018.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2496-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2496-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2496-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2496-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2496-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2496-17-0x000000001DB90000-0x000000001DDEF000-memory.dmpFilesize
2.4MB
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memory/2496-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2496-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-0-0x00000000023B0000-0x00000000023B1000-memory.dmpFilesize
4KB
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memory/2900-2-0x00000000041A0000-0x00000000042E9000-memory.dmpFilesize
1.3MB
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memory/2900-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB