Analysis
- max time kernel
179s - max time network
193s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
30/11/2022, 11:32
General
- Target SecuriteInfo.com.Win32.DropperX-gen.13634.14488.exe
- Size 10KB
- Sample221130-nnad4afe38
- SHA256 397af187b4af99bc3700f3b6e34bcd13120e10397840b25df3698fc3234c8aad
Malware Config
Extracted
-
remcos
-
RemoteHostBlanca
-
85.31.44.145:41900
-
audio_folder
MicRecords
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audio_record_time
5
-
connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-MWMI3B
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
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startup_value
Remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.13634.14488.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.13634.14488.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-Date2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.13634.14488.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.13634.14488.exe2⤵
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
memory/1468-137-0x0000000002D20000-0x0000000002D56000-memory.dmp
memory/1468-143-0x0000000007CD0000-0x000000000834A000-memory.dmp
memory/1468-144-0x0000000006B20000-0x0000000006B3A000-memory.dmp
memory/1468-138-0x00000000057B0000-0x0000000005DD8000-memory.dmp
memory/1468-139-0x0000000005690000-0x00000000056B2000-memory.dmp
memory/1468-140-0x0000000005730000-0x0000000005796000-memory.dmp
memory/1468-141-0x0000000005DE0000-0x0000000005E46000-memory.dmp
memory/1468-142-0x0000000006640000-0x000000000665E000-memory.dmp
memory/2200-149-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2200-150-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2200-151-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2200-152-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4288-135-0x0000000006510000-0x00000000065A2000-memory.dmp
memory/4288-132-0x0000000000E20000-0x0000000000E28000-memory.dmp
memory/4288-136-0x00000000064D0000-0x00000000064DA000-memory.dmp
memory/4288-133-0x0000000005DC0000-0x0000000006364000-memory.dmp