Analysis
- max time kernel
149s - max time network
54s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 21:09
General
- Target 2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe
- Size 755KB
- Sample240613-zzy3dazfjd
- SHA256 2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca
Malware Config
Signatures
- UPX dump on OEP (original entry point) 26 IoCs
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe"C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Microsoft Build\Isass.exe"C:\Users\Public\Microsoft Build\Isass.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Public\Microsoft Build\Isass.exe"C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe"C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe"3⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Microsoft Build\Isass.exe"C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe"C:\Users\Admin\AppData\Local\Temp\2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe"5⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
FileCoAuth.exe
2d06a7a65bb7b17718a9cfb5f65126a21a0aa1b1b07d74b58a7d55d4d398a7ca.exe
Isass.exe
memory/1052-10-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/1052-13-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-31-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-35-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-89-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-80-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-79-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-68-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-7-0x0000000001A30000-0x0000000001A31000-memory.dmp
memory/2540-67-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-30-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-5-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-34-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-56-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-55-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-39-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-40-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-48-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/2540-49-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/4328-4-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/4328-11-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/4328-9-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/4476-29-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/4476-17-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/4568-18-0x0000000000400000-0x00000000016A8000-memory.dmp
memory/4568-14-0x0000000000400000-0x00000000016A8000-memory.dmp