Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
07/08/2024, 13:49
General
- Target CEC_Bon_de_plata.pdf.exe
- Size 969KB
- Sample240807-q4wy5ssfqa
- 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_bxv4oq4p.yyr.ps1
memory/3568-17-0x0000000074760000-0x0000000074F10000-memory.dmp
memory/3568-1-0x0000000000950000-0x0000000000A46000-memory.dmp
memory/3568-2-0x0000000005A30000-0x0000000005FD4000-memory.dmp
memory/3568-3-0x0000000005480000-0x0000000005512000-memory.dmp
memory/3568-4-0x0000000005410000-0x000000000541A000-memory.dmp
memory/3568-6-0x0000000005700000-0x000000000579C000-memory.dmp
memory/3568-5-0x0000000074760000-0x0000000074F10000-memory.dmp
memory/3568-7-0x00000000056F0000-0x0000000005700000-memory.dmp
memory/3568-8-0x00000000058A0000-0x00000000058AE000-memory.dmp
memory/3568-9-0x0000000006870000-0x000000000692E000-memory.dmp
memory/3568-0-0x000000007476E000-0x000000007476F000-memory.dmp
memory/4008-59-0x0000000007000000-0x0000000007096000-memory.dmp
memory/4008-44-0x0000000070890000-0x00000000708DC000-memory.dmp
memory/4008-67-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/4008-64-0x00000000070A0000-0x00000000070A8000-memory.dmp
memory/4008-18-0x000000007478E000-0x000000007478F000-memory.dmp
memory/4008-19-0x0000000002140000-0x0000000002176000-memory.dmp
memory/4008-22-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/4008-21-0x0000000004C60000-0x0000000005288000-memory.dmp
memory/4008-20-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/4008-23-0x0000000004A50000-0x0000000004A72000-memory.dmp
memory/4008-63-0x00000000070C0000-0x00000000070DA000-memory.dmp
memory/4008-25-0x0000000005390000-0x00000000053F6000-memory.dmp
memory/4008-24-0x0000000004B70000-0x0000000004BD6000-memory.dmp
memory/4008-35-0x0000000005440000-0x0000000005794000-memory.dmp
memory/4008-36-0x0000000005A50000-0x0000000005A6E000-memory.dmp
memory/4008-37-0x0000000005B00000-0x0000000005B4C000-memory.dmp
memory/4008-62-0x0000000006FC0000-0x0000000006FD4000-memory.dmp
memory/4008-61-0x0000000006FB0000-0x0000000006FBE000-memory.dmp
memory/4008-60-0x0000000006F80000-0x0000000006F91000-memory.dmp
memory/4008-58-0x0000000006DF0000-0x0000000006DFA000-memory.dmp
memory/4008-43-0x0000000006A50000-0x0000000006A82000-memory.dmp
memory/4008-57-0x0000000006D80000-0x0000000006D9A000-memory.dmp
memory/4008-54-0x0000000006000000-0x000000000601E000-memory.dmp
memory/4008-55-0x0000000006A90000-0x0000000006B33000-memory.dmp
memory/4008-56-0x00000000073C0000-0x0000000007A3A000-memory.dmp
memory/4916-16-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-68-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-10-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-40-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-39-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-38-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-42-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-11-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-14-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-13-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-69-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-70-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-71-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-72-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-73-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4916-74-0x0000000000400000-0x000000000047F000-memory.dmp