Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
02/09/2024, 11:32
General
- Target 2024082801362910.exe
- Size 908KB
- Sample240902-nnapvszerh
- SHA256 31febdf316e73eaa38c90143a5cd2351cdc4f4921ada4f6b053e5f9c2fa3d752
Malware Config
Extracted
-
remcos
-
3456789
-
172.93.220.148:45682
-
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
765-8M14I5
-
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 4 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 2 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024082801362910.exe"C:\Users\Admin\AppData\Local\Temp\2024082801362910.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\Roaming\OXwtFifCEW.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\OXwtFifCEW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC071.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\2024082801362910.exe"C:\Users\Admin\AppData\Local\Temp\2024082801362910.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\2024082801362910.exe"C:\Users\Admin\AppData\Local\Temp\2024082801362910.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_4eyywpva.40m.ps1
tmpC071.tmp
memory/1140-42-0x00000000063D0000-0x000000000641C000-memory.dmp
memory/1140-67-0x00000000078A0000-0x00000000078AE000-memory.dmp
memory/1140-73-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1140-70-0x0000000007990000-0x0000000007998000-memory.dmp
memory/1140-69-0x00000000079B0000-0x00000000079CA000-memory.dmp
memory/1140-68-0x00000000078B0000-0x00000000078C4000-memory.dmp
memory/1140-66-0x0000000007870000-0x0000000007881000-memory.dmp
memory/1140-65-0x00000000078F0000-0x0000000007986000-memory.dmp
memory/1140-64-0x00000000076E0000-0x00000000076EA000-memory.dmp
memory/1140-63-0x0000000007670000-0x000000000768A000-memory.dmp
memory/1140-16-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1140-17-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1140-62-0x0000000007CB0000-0x000000000832A000-memory.dmp
memory/1140-18-0x0000000005430000-0x0000000005A58000-memory.dmp
memory/1140-20-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1140-22-0x0000000005AD0000-0x0000000005B36000-memory.dmp
memory/1140-23-0x0000000005B40000-0x0000000005BA6000-memory.dmp
memory/1140-61-0x0000000007540000-0x00000000075E3000-memory.dmp
memory/1140-60-0x0000000007520000-0x000000000753E000-memory.dmp
memory/1140-36-0x0000000005D30000-0x0000000006084000-memory.dmp
memory/1140-50-0x000000006F860000-0x000000006F8AC000-memory.dmp
memory/1140-49-0x0000000006920000-0x0000000006952000-memory.dmp
memory/1140-15-0x0000000002A40000-0x0000000002A76000-memory.dmp
memory/1140-41-0x0000000006340000-0x000000000635E000-memory.dmp
memory/1140-21-0x00000000053A0000-0x00000000053C2000-memory.dmp
memory/1512-43-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1512-8-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1512-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp
memory/1512-9-0x0000000006510000-0x00000000065CE000-memory.dmp
memory/1512-5-0x0000000074DF0000-0x00000000755A0000-memory.dmp
memory/1512-6-0x00000000056D0000-0x00000000056E8000-memory.dmp
memory/1512-4-0x0000000005350000-0x000000000535A000-memory.dmp
memory/1512-7-0x0000000074DFE000-0x0000000074DFF000-memory.dmp
memory/1512-1-0x0000000000810000-0x00000000008F6000-memory.dmp
memory/1512-3-0x0000000005290000-0x0000000005322000-memory.dmp
memory/1512-2-0x0000000005760000-0x0000000005D04000-memory.dmp
memory/1512-10-0x00000000067B0000-0x000000000684C000-memory.dmp
memory/3644-25-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-24-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-35-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-26-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-46-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-44-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-45-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-27-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-81-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3644-82-0x0000000000400000-0x000000000047F000-memory.dmp