Analysis
- max time kernel
136s - max time network
140s - platform
windows7_x64 - resource
win7v20201028 - submitted
15/12/2020, 09:48
General
- Target SecuriteInfo.com.Backdoor.Remcos.20284.exe
- Size 866KB
- Sample201215-cwn2cnz46s
- SHA256 45758c4c53cd20b6f598a9cba7185150543d829eee00aaa8dc565cefd59e9909
Malware Config
Signatures
- NetWire RAT payload 3 IoCs
- Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Modifies Installed Components in the registry 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Adds Run key to start application 2 TTPs 2 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Backdoor.Remcos.20284.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Backdoor.Remcos.20284.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Backdoor.Remcos.20284.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Backdoor.Remcos.20284.exe"2⤵
- Adds Run key to start application
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1108-11-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1108-13-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1916-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp
memory/1916-3-0x0000000000CE0000-0x0000000000CE1000-memory.dmp
memory/1916-5-0x0000000028470000-0x0000000048458000-memory.dmp
memory/1916-6-0x0000000004E40000-0x0000000004E89000-memory.dmp
memory/1916-7-0x0000000000620000-0x0000000000628000-memory.dmp
memory/1916-9-0x0000000000800000-0x000000000082C000-memory.dmp
memory/1916-10-0x0000000005BA0000-0x0000000005BA2000-memory.dmp