Analysis
- max time kernel
131s - max time network
142s - platform
windows7_x64 - resource
win7-20240419-en - resource tags
- submitted
11/05/2024, 08:32
General
- Target 869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
- Size 604KB
- Sample240511-ke9k2shb21
- SHA256 869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d
Malware Config
Extracted
-
remcos
-
1.7 Pro
-
NHS
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185.189.112.19:30311
-
audio_folder
audio
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audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
5
-
copy_file
remcos.exe
-
copy_folder
remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
install_path
%AppData%
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
nhs
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
remcos_lejjhxgdnt
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screens
-
screenshot_path
%AppData%
-
screenshot_time
1
-
startup_value
remcos
-
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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 12 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 22 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RqlVhjJtK.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RqlVhjJtK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7011.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmp7011.tmp
MU1NZUM2WTKCST8LGQ3J.temp
memory/1732-5-0x00000000003F0000-0x0000000000406000-memory.dmp
memory/1732-37-0x0000000074B80000-0x000000007526E000-memory.dmp
memory/1732-4-0x00000000003E0000-0x00000000003EE000-memory.dmp
memory/1732-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp
memory/1732-6-0x0000000000AC0000-0x0000000000B20000-memory.dmp
memory/1732-7-0x0000000074B8E000-0x0000000074B8F000-memory.dmp
memory/1732-8-0x0000000074B80000-0x000000007526E000-memory.dmp
memory/1732-2-0x0000000074B80000-0x000000007526E000-memory.dmp
memory/1732-1-0x0000000000300000-0x000000000039C000-memory.dmp
memory/1732-3-0x00000000003A0000-0x00000000003B8000-memory.dmp
memory/2576-23-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-21-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-27-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-32-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2576-29-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-34-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-33-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2576-25-0x0000000000400000-0x0000000000417000-memory.dmp