Analysis
- max time kernel
148s - max time network
141s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
24/09/2024, 01:54
General
- Target BL-TLN0124796CMACGM.scr
- Size 915KB
- Sample240924-cbrxtssdkn
- SHA256 d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a
Malware Config
Extracted
-
remcos
-
GeneralWire-Slaves
-
milliondollar23.duckdns.org:3984
-
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-TWU43D
-
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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 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 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr" /S1⤵
- 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\Local\Temp\BL-TLN0124796CMACGM.scr"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- 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\LdtceRaylJq.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\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC800.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
tmpC800.tmp
15C4O5HQCKQBFBCBB3FY.temp
memory/2252-0-0x00000000748CE000-0x00000000748CF000-memory.dmp
memory/2252-1-0x0000000000F00000-0x0000000000FEA000-memory.dmp
memory/2252-2-0x00000000748C0000-0x0000000074FAE000-memory.dmp
memory/2252-3-0x0000000000630000-0x0000000000642000-memory.dmp
memory/2252-4-0x00000000748CE000-0x00000000748CF000-memory.dmp
memory/2252-5-0x00000000748C0000-0x0000000074FAE000-memory.dmp
memory/2252-6-0x0000000005490000-0x0000000005550000-memory.dmp
memory/2252-42-0x00000000748C0000-0x0000000074FAE000-memory.dmp
memory/2592-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2592-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-64-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-63-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-72-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-71-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2592-79-0x0000000000400000-0x0000000000482000-memory.dmp