Analysis
- max time kernel
192s - max time network
204s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
13/10/2022, 14:01
General
- Target 648c55c1dbe5e193424586c502976dc8.exe
- Size 227KB
- Sample221013-rbh29agfc9
- SHA256 8705edd12d81d96ea26ed36283cf91a186c8715544d8f76bed72d8882bfb8f0d
Malware Config
Extracted
-
redline
-
seo
-
195.178.120.187:27180
-
auth_value
190cedb158f7b6fa89b24f145af7676a
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 3 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 4 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\648c55c1dbe5e193424586c502976dc8.exe"C:\Users\Admin\AppData\Local\Temp\648c55c1dbe5e193424586c502976dc8.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exe"C:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN rovwer.exe /TR "C:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exe" /F3⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\1000026001\bu.exe"C:\Users\Admin\AppData\Local\Temp\1000026001\bu.exe"3⤵
- Executes dropped EXE
-
-
-
C:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exeC:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exe1⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exeC:\Users\Admin\AppData\Local\Temp\c07b20db1b\rovwer.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
bu.exe
bu.exe
rovwer.exe
rovwer.exe
rovwer.exe
rovwer.exe
memory/2716-141-0x0000000000600000-0x0000000000628000-memory.dmp
memory/2716-142-0x0000000005500000-0x0000000005B18000-memory.dmp
memory/2716-143-0x0000000005080000-0x000000000518A000-memory.dmp
memory/2716-144-0x0000000004FC0000-0x0000000004FD2000-memory.dmp
memory/2716-145-0x0000000005020000-0x000000000505C000-memory.dmp
memory/2716-146-0x0000000005320000-0x0000000005386000-memory.dmp
memory/2716-147-0x0000000005ED0000-0x0000000005F62000-memory.dmp
memory/2716-148-0x0000000006520000-0x0000000006AC4000-memory.dmp