Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
06/04/2024, 01:48
General
- Target f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
- Size 891KB
- Sample240406-b766yshd68
- SHA256 f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af
Malware Config
Extracted
-
remcos
-
RemoteHost
-
paygateme.net:2286
-
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
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-WTDTSU
-
screenshot_crypt
true
-
screenshot_flag
true
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
1
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 19 IoCs
- Detects executables packed with SmartAssembly 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe"C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\FCsxaE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FCsxaE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC0F.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe"C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_ypzzghar.smn.ps1
tmpAC0F.tmp
memory/2548-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-88-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-96-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-102-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-110-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2548-97-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3088-25-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3088-4-0x0000000004E50000-0x0000000004E60000-memory.dmp
memory/3088-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp
memory/3088-2-0x0000000005520000-0x0000000005AC4000-memory.dmp
memory/3088-15-0x0000000004E50000-0x0000000004E60000-memory.dmp
memory/3088-13-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3088-9-0x0000000008CF0000-0x0000000008D8C000-memory.dmp
memory/3088-1-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3088-8-0x0000000006650000-0x0000000006710000-memory.dmp
memory/3088-7-0x00000000060D0000-0x00000000060DC000-memory.dmp
memory/3088-0-0x00000000003E0000-0x00000000004C6000-memory.dmp
memory/3088-6-0x00000000064D0000-0x00000000064E0000-memory.dmp
memory/3088-5-0x0000000005080000-0x000000000508A000-memory.dmp
memory/3684-44-0x0000000006180000-0x00000000064D4000-memory.dmp
memory/3684-61-0x0000000006D30000-0x0000000006D4E000-memory.dmp
memory/3684-63-0x00000000079A0000-0x0000000007A43000-memory.dmp
memory/3684-62-0x00000000052C0000-0x00000000052D0000-memory.dmp
memory/3684-64-0x00000000052C0000-0x00000000052D0000-memory.dmp
memory/3684-65-0x00000000080D0000-0x000000000874A000-memory.dmp
memory/3684-66-0x0000000007A50000-0x0000000007A6A000-memory.dmp
memory/3684-67-0x0000000007AB0000-0x0000000007ABA000-memory.dmp
memory/3684-68-0x0000000007CC0000-0x0000000007D56000-memory.dmp
memory/3684-69-0x0000000007C40000-0x0000000007C51000-memory.dmp
memory/3684-70-0x0000000007C70000-0x0000000007C7E000-memory.dmp
memory/3684-71-0x0000000007C80000-0x0000000007C94000-memory.dmp
memory/3684-72-0x0000000007D80000-0x0000000007D9A000-memory.dmp
memory/3684-73-0x0000000007D60000-0x0000000007D68000-memory.dmp
memory/3684-76-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3684-51-0x0000000070F00000-0x0000000070F4C000-memory.dmp
memory/3684-50-0x0000000006CF0000-0x0000000006D22000-memory.dmp
memory/3684-49-0x000000007F410000-0x000000007F420000-memory.dmp
memory/3684-48-0x0000000006750000-0x000000000679C000-memory.dmp
memory/3684-47-0x0000000006700000-0x000000000671E000-memory.dmp
memory/3684-30-0x0000000006030000-0x0000000006096000-memory.dmp
memory/3684-32-0x0000000006110000-0x0000000006176000-memory.dmp
memory/3684-27-0x0000000005630000-0x0000000005652000-memory.dmp
memory/3684-21-0x0000000005900000-0x0000000005F28000-memory.dmp
memory/3684-18-0x00000000052C0000-0x00000000052D0000-memory.dmp
memory/3684-17-0x0000000074D20000-0x00000000754D0000-memory.dmp
memory/3684-16-0x0000000005130000-0x0000000005166000-memory.dmp