Analysis
- max time kernel
150s - max time network
151s - platform
windows10_x64 - resource
win10v20201028 - submitted
21/01/2021, 06:21
General
- Target Payment Invoice PDF.exe
- Size 531KB
- Sample210121-gl5nd9l2f2
- SHA256 8084639a37257615b09beac5c8f681aa2115ece62fcb003fc8ddadb0d833fdb7
Malware Config
Extracted
-
remcos
-
mikegrace2021.ddns.net:1999
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of SetThreadContext 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment Invoice PDF.exe"C:\Users\Admin\AppData\Local\Temp\Payment Invoice PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tuILphceR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D65.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Payment Invoice PDF.exe"C:\Users\Admin\AppData\Local\Temp\Payment Invoice PDF.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/976-17-0x0000000000400000-0x0000000000421000-memory.dmp
memory/976-15-0x0000000000400000-0x0000000000421000-memory.dmp
memory/4768-9-0x0000000005300000-0x0000000005301000-memory.dmp
memory/4768-2-0x00000000732D0000-0x00000000739BE000-memory.dmp
memory/4768-10-0x0000000005360000-0x0000000005383000-memory.dmp
memory/4768-11-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/4768-12-0x0000000005F00000-0x0000000005F59000-memory.dmp
memory/4768-8-0x0000000005030000-0x0000000005031000-memory.dmp
memory/4768-7-0x00000000051A0000-0x00000000051A1000-memory.dmp
memory/4768-6-0x0000000005600000-0x0000000005601000-memory.dmp
memory/4768-5-0x0000000005060000-0x0000000005061000-memory.dmp
memory/4768-3-0x00000000007A0000-0x00000000007A1000-memory.dmp