Analysis
- max time kernel
63s - max time network
117s - platform
windows7_x64 - resource
win7 - submitted
27/10/2020, 13:01
General
- Target Delivery Note - AWD 200038485852- 234920300333.exe
- Size 876KB
- Sample201027-4kj4d9ppee
- SHA256 982c1c1db5ea18b83cdeb2f91672d093ff3258154c88334ed09dd736cb84c2d8
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 3 IoCs
- Executes dropped EXE 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 3 IoCs
- 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: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Delivery Note - AWD 200038485852- 234920300333.exe"C:\Users\Admin\AppData\Local\Temp\Delivery Note - AWD 200038485852- 234920300333.exe"1⤵
- Loads dropped DLL
- 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\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\AddInProcess32.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/532-1-0x0000000000BE0000-0x0000000000BE1000-memory.dmp
memory/532-3-0x0000000000480000-0x00000000004B2000-memory.dmp
memory/532-5-0x0000000000620000-0x0000000000636000-memory.dmp
memory/532-0-0x0000000073AA0000-0x000000007418E000-memory.dmp
memory/988-21-0x0000000002550000-0x0000000002551000-memory.dmp
memory/988-31-0x00000000061F0000-0x00000000061F1000-memory.dmp
memory/988-54-0x0000000006310000-0x0000000006311000-memory.dmp
memory/988-53-0x0000000006300000-0x0000000006301000-memory.dmp
memory/988-39-0x0000000005F80000-0x0000000005F81000-memory.dmp
memory/988-18-0x0000000073AA0000-0x000000007418E000-memory.dmp
memory/988-19-0x0000000000A30000-0x0000000000A31000-memory.dmp
memory/988-20-0x00000000049F0000-0x00000000049F1000-memory.dmp
memory/988-38-0x0000000006280000-0x0000000006281000-memory.dmp
memory/988-22-0x0000000002710000-0x0000000002711000-memory.dmp
memory/988-25-0x0000000005FC0000-0x0000000005FC1000-memory.dmp
memory/988-30-0x0000000006030000-0x0000000006031000-memory.dmp
memory/2032-12-0x0000000000080000-0x0000000000106000-memory.dmp
memory/2032-15-0x0000000000080000-0x0000000000082000-memory.dmp
memory/2032-14-0x0000000073AA0000-0x000000007418E000-memory.dmp
memory/2032-11-0x0000000000080000-0x0000000000106000-memory.dmp