Analysis
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max time kernel
106s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 09:28
Static task
static1
Behavioral task
behavioral1
Sample
8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe
Resource
win10v2004-20240226-en
General
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Target
8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe
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Size
2.0MB
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MD5
30a42cef4b589eddb44aa617b09617cf
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SHA1
bceb2ec583929e3c5b6e2e0a48884794302a12bc
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SHA256
8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654
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SHA512
d5074fb71a94f76eed3de3424f11ef5d857d700a933a730902d96824c76fa0d7c1bda363c94e62d2e96d08720a8449fecdc2fbae36ad2a6777091170e66b0b16
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SSDEEP
49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ
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 9 IoCs
Processes:
resource yara_rule behavioral2/memory/3796-1-0x00000000041B0000-0x00000000042F9000-memory.dmp family_vidar_v7 behavioral2/memory/2128-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-51-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2128-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat53FC.tmppid process 2128 kat53FC.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:
8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exedescription pid process target process PID 3796 set thread context of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat53FC.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat53FC.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat53FC.tmppid process 2128 kat53FC.tmp 2128 kat53FC.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exedescription pid process target process PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp PID 3796 wrote to memory of 2128 3796 8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe kat53FC.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe"C:\Users\Admin\AppData\Local\Temp\8bc18f63ae815f16a5af4c2c3ed9de2c97c03545e33435df146d757b71bac654.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat53FC.tmpC:\Users\Admin\AppData\Local\Temp\kat53FC.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\kat53FC.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2128-20-0x000000001B8C0000-0x000000001BB1F000-memory.dmpFilesize
2.4MB
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memory/2128-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-51-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2128-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3796-1-0x00000000041B0000-0x00000000042F9000-memory.dmpFilesize
1.3MB
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memory/3796-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3796-0-0x00000000025B0000-0x00000000025B1000-memory.dmpFilesize
4KB