Analysis
- max time kernel
75s - max time network
123s - platform
windows7_x64 - resource
win7v200722 - submitted
17/10/2020, 06:47
General
- Target p773978.exe
- Size 991KB
- Sample201017-q4stb4ddcn
- SHA256 b49f4c0a41fe65d3e81919eae65adb01d493e08331e0e3652b30655d55170d52
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 4 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\p773978.exe"C:\Users\Admin\AppData\Local\Temp\p773978.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\p773978.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\p773978.exe"{path}"2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\p773978.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/840-18-0x0000000005250000-0x0000000005251000-memory.dmp
memory/840-49-0x0000000006300000-0x0000000006301000-memory.dmp
memory/840-26-0x00000000060E0000-0x00000000060E1000-memory.dmp
memory/840-21-0x0000000005700000-0x0000000005701000-memory.dmp
memory/840-17-0x0000000002450000-0x0000000002451000-memory.dmp
memory/840-50-0x0000000006310000-0x0000000006311000-memory.dmp
memory/840-15-0x0000000002340000-0x0000000002341000-memory.dmp
memory/840-14-0x0000000074670000-0x0000000074D5E000-memory.dmp
memory/840-27-0x0000000006120000-0x0000000006121000-memory.dmp
memory/840-16-0x00000000049A0000-0x00000000049A1000-memory.dmp
memory/840-35-0x0000000005610000-0x0000000005611000-memory.dmp
memory/840-34-0x0000000006280000-0x0000000006281000-memory.dmp
memory/1296-1-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1296-5-0x0000000005530000-0x00000000055C5000-memory.dmp
memory/1296-0-0x0000000074670000-0x0000000074D5E000-memory.dmp
memory/1296-4-0x0000000005240000-0x00000000052D8000-memory.dmp
memory/1296-3-0x00000000005D0000-0x00000000005D4000-memory.dmp
memory/1604-8-0x0000000000400000-0x0000000000486000-memory.dmp
memory/1604-9-0x0000000000400000-0x0000000000486000-memory.dmp
memory/1604-10-0x0000000074670000-0x0000000074D5E000-memory.dmp
memory/1604-6-0x0000000000400000-0x0000000000486000-memory.dmp