Analysis
- max time kernel
147s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
03/06/2024, 14:41
General
- Target SKM 26399.exe
- Size 1.1MB
- Sample240603-r2wq2aba99
- SHA256 71e0f19321cc5cb94fabeb2f8b2428874796a9bacd25580c8cd366539822de66
Malware Config
Extracted
-
remcos
-
76364
-
103.150.8.12:5689
-
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-FF0K7G
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
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 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SKM 26399.exe"C:\Users\Admin\AppData\Local\Temp\SKM 26399.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\uAixAcYx.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\uAixAcYx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B01.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SKM 26399.exe"C:\Users\Admin\AppData\Local\Temp\SKM 26399.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_kepkffsv.0qc.ps1
tmp5B01.tmp
memory/1216-42-0x00000000060A0000-0x00000000060BE000-memory.dmp
memory/1216-65-0x0000000007650000-0x00000000076E6000-memory.dmp
memory/1216-43-0x0000000006130000-0x000000000617C000-memory.dmp
memory/1216-73-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/1216-69-0x0000000007710000-0x000000000772A000-memory.dmp
memory/1216-68-0x0000000007610000-0x0000000007624000-memory.dmp
memory/1216-67-0x0000000007600000-0x000000000760E000-memory.dmp
memory/1216-66-0x00000000075D0000-0x00000000075E1000-memory.dmp
memory/1216-64-0x0000000007440000-0x000000000744A000-memory.dmp
memory/1216-61-0x00000000073D0000-0x00000000073EA000-memory.dmp
memory/1216-16-0x0000000002770000-0x00000000027A6000-memory.dmp
memory/1216-17-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/1216-20-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/1216-19-0x00000000052F0000-0x0000000005918000-memory.dmp
memory/1216-60-0x0000000007A10000-0x000000000808A000-memory.dmp
memory/1216-21-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/1216-29-0x0000000005A00000-0x0000000005A66000-memory.dmp
memory/1216-59-0x0000000007290000-0x0000000007333000-memory.dmp
memory/1216-58-0x0000000007260000-0x000000000727E000-memory.dmp
memory/1216-48-0x0000000075040000-0x000000007508C000-memory.dmp
memory/1216-47-0x0000000006680000-0x00000000066B2000-memory.dmp
memory/1216-25-0x0000000005990000-0x00000000059F6000-memory.dmp
memory/1216-70-0x00000000076F0000-0x00000000076F8000-memory.dmp
memory/1216-23-0x00000000052C0000-0x00000000052E2000-memory.dmp
memory/2312-4-0x0000000005890000-0x0000000005BE4000-memory.dmp
memory/2312-10-0x0000000006D90000-0x0000000006E4E000-memory.dmp
memory/2312-3-0x00000000055B0000-0x0000000005642000-memory.dmp
memory/2312-9-0x0000000006D20000-0x0000000006D30000-memory.dmp
memory/2312-5-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2312-0-0x00000000747CE000-0x00000000747CF000-memory.dmp
memory/2312-6-0x0000000005860000-0x000000000586A000-memory.dmp
memory/2312-32-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2312-1-0x0000000000AC0000-0x0000000000BD6000-memory.dmp
memory/2312-7-0x00000000063F0000-0x0000000006406000-memory.dmp
memory/2312-8-0x0000000006600000-0x000000000660E000-memory.dmp
memory/2312-11-0x00000000094B0000-0x000000000954C000-memory.dmp
memory/2312-2-0x0000000005C70000-0x0000000006214000-memory.dmp
memory/2888-27-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-63-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-24-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-28-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-30-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-46-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-44-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-22-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-45-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-31-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-81-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2888-82-0x0000000000400000-0x000000000047F000-memory.dmp