Analysis
- max time kernel
31s - max time network
41s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
05/08/2024, 17:24
Errors
General
- Target SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe
- Size 894KB
- Sample240805-vypp4awgrg
- SHA256 af013d9096edd166f1cdd1bd1d2fdd944982876a6d263965929f3a8f30c8ef65
Malware Config
Extracted
-
remcos
-
RemoteHost
-
eadzagba1.duckdns.org:4877
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
true
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-3DF634
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 42 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EaTzOjH.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EaTzOjH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA911.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.MalwareX-gen.31827.6785.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EaTzOjH.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EaTzOjH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD5DE.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
-
-
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
remcos.exe
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_tboqckbj.iuz.ps1
tmpA911.tmp
memory/1928-79-0x0000000004ED0000-0x0000000004EE6000-memory.dmp
memory/2440-53-0x0000000006490000-0x00000000064DC000-memory.dmp
memory/2440-23-0x0000000005950000-0x0000000005CA4000-memory.dmp
memory/2440-55-0x00000000711C0000-0x000000007120C000-memory.dmp
memory/2440-78-0x0000000075210000-0x00000000759C0000-memory.dmp
memory/2440-75-0x00000000075C0000-0x00000000075C8000-memory.dmp
memory/2440-15-0x00000000049C0000-0x00000000049F6000-memory.dmp
memory/2440-16-0x00000000050A0000-0x00000000056C8000-memory.dmp
memory/2440-74-0x00000000075E0000-0x00000000075FA000-memory.dmp
memory/2440-18-0x0000000075210000-0x00000000759C0000-memory.dmp
memory/2440-19-0x0000000004EA0000-0x0000000004EC2000-memory.dmp
memory/2440-21-0x0000000005030000-0x0000000005096000-memory.dmp
memory/2440-20-0x0000000004F50000-0x0000000004FB6000-memory.dmp
memory/2440-54-0x0000000006F10000-0x0000000006F42000-memory.dmp
memory/2440-22-0x0000000075210000-0x00000000759C0000-memory.dmp
memory/2440-73-0x00000000074E0000-0x00000000074F4000-memory.dmp
memory/2440-72-0x00000000074D0000-0x00000000074DE000-memory.dmp
memory/2440-71-0x00000000074A0000-0x00000000074B1000-memory.dmp
memory/2440-70-0x0000000007520000-0x00000000075B6000-memory.dmp
memory/2440-29-0x0000000075210000-0x00000000759C0000-memory.dmp
memory/2440-69-0x0000000007310000-0x000000000731A000-memory.dmp
memory/2440-68-0x00000000072A0000-0x00000000072BA000-memory.dmp
memory/2440-67-0x00000000078F0000-0x0000000007F6A000-memory.dmp
memory/2440-52-0x0000000005F60000-0x0000000005F7E000-memory.dmp
memory/2440-66-0x0000000006F50000-0x0000000006FF3000-memory.dmp
memory/2440-65-0x0000000006530000-0x000000000654E000-memory.dmp
memory/3008-5-0x0000000075210000-0x00000000759C0000-memory.dmp
memory/3008-1-0x0000000000FF0000-0x00000000010D6000-memory.dmp
memory/3008-7-0x0000000005FE0000-0x0000000005FEE000-memory.dmp
memory/3008-0-0x000000007521E000-0x000000007521F000-memory.dmp
memory/3008-51-0x0000000075210000-0x00000000759C0000-memory.dmp
memory/3008-8-0x0000000005FF0000-0x0000000006006000-memory.dmp
memory/3008-4-0x0000000005AA0000-0x0000000005AAA000-memory.dmp
memory/3008-2-0x0000000006010000-0x00000000065B4000-memory.dmp
memory/3008-3-0x0000000005B00000-0x0000000005B92000-memory.dmp
memory/3008-9-0x0000000009320000-0x00000000093E0000-memory.dmp
memory/3008-10-0x00000000080D0000-0x000000000816C000-memory.dmp
memory/3008-6-0x0000000005D30000-0x0000000005D48000-memory.dmp
memory/3152-86-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3152-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3152-114-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3152-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4052-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4052-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4052-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4052-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4052-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4528-97-0x0000000005670000-0x00000000059C4000-memory.dmp
memory/4528-99-0x00000000061D0000-0x000000000621C000-memory.dmp
memory/4528-100-0x0000000072130000-0x000000007217C000-memory.dmp
memory/4528-110-0x0000000006E70000-0x0000000006F13000-memory.dmp
memory/4528-111-0x0000000007130000-0x0000000007141000-memory.dmp
memory/4528-112-0x0000000007170000-0x0000000007184000-memory.dmp