Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
07/08/2024, 14:13
General
- Target CEC_Bon_de_plata.pdf.exe
- Size 969KB
- Sample240807-rjfxvszbql
- SHA256 cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e
Malware Config
Extracted
-
remcos
-
RemoteHost
-
212.162.149.42:7118
-
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-WYBPPO
-
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).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.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\Local\Temp\CEC_Bon_de_plata.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"C:\Users\Admin\AppData\Local\Temp\CEC_Bon_de_plata.pdf.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_qhe0yyhk.y0a.ps1
memory/4220-60-0x0000000007120000-0x0000000007131000-memory.dmp
memory/4220-57-0x0000000006F20000-0x0000000006F3A000-memory.dmp
memory/4220-36-0x0000000005BF0000-0x0000000005C0E000-memory.dmp
memory/4220-67-0x0000000075170000-0x0000000075920000-memory.dmp
memory/4220-64-0x0000000007240000-0x0000000007248000-memory.dmp
memory/4220-63-0x0000000007260000-0x000000000727A000-memory.dmp
memory/4220-62-0x0000000007160000-0x0000000007174000-memory.dmp
memory/4220-61-0x0000000007150000-0x000000000715E000-memory.dmp
memory/4220-59-0x00000000071A0000-0x0000000007236000-memory.dmp
memory/4220-58-0x0000000006F90000-0x0000000006F9A000-memory.dmp
memory/4220-37-0x0000000005C30000-0x0000000005C7C000-memory.dmp
memory/4220-56-0x0000000007560000-0x0000000007BDA000-memory.dmp
memory/4220-55-0x0000000006DE0000-0x0000000006E83000-memory.dmp
memory/4220-54-0x0000000006B80000-0x0000000006B9E000-memory.dmp
memory/4220-44-0x0000000071290000-0x00000000712DC000-memory.dmp
memory/4220-18-0x000000007517E000-0x000000007517F000-memory.dmp
memory/4220-19-0x00000000022D0000-0x0000000002306000-memory.dmp
memory/4220-20-0x0000000075170000-0x0000000075920000-memory.dmp
memory/4220-21-0x0000000004EA0000-0x00000000054C8000-memory.dmp
memory/4220-22-0x0000000075170000-0x0000000075920000-memory.dmp
memory/4220-23-0x0000000004C30000-0x0000000004C52000-memory.dmp
memory/4220-25-0x00000000055B0000-0x0000000005616000-memory.dmp
memory/4220-24-0x00000000054D0000-0x0000000005536000-memory.dmp
memory/4220-43-0x0000000006BA0000-0x0000000006BD2000-memory.dmp
memory/4220-35-0x0000000005720000-0x0000000005A74000-memory.dmp
memory/4800-2-0x0000000005CA0000-0x0000000006244000-memory.dmp
memory/4800-0-0x000000007513E000-0x000000007513F000-memory.dmp
memory/4800-3-0x00000000056F0000-0x0000000005782000-memory.dmp
memory/4800-4-0x00000000058B0000-0x00000000058BA000-memory.dmp
memory/4800-5-0x0000000005A00000-0x0000000005A9C000-memory.dmp
memory/4800-1-0x0000000000C50000-0x0000000000D46000-memory.dmp
memory/4800-6-0x0000000075130000-0x00000000758E0000-memory.dmp
memory/4800-17-0x0000000075130000-0x00000000758E0000-memory.dmp
memory/4800-7-0x00000000059F0000-0x0000000005A00000-memory.dmp
memory/4800-8-0x00000000069E0000-0x00000000069EE000-memory.dmp
memory/4800-9-0x0000000006B90000-0x0000000006C4E000-memory.dmp
memory/5056-40-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-70-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-68-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-13-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-14-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-16-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-11-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-38-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-10-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-69-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-39-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-71-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-72-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-73-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5056-74-0x0000000000400000-0x000000000047F000-memory.dmp