Analysis
- max time kernel
150s - max time network
145s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
- submitted
05/09/2025, 13:00
General
- Target 57b8d1f1afc63450aff6f6c4a3ac9af5c7f7e1ea8de0187987df2ce051cd2ea5.exe
- Size 917KB
- Sample250905-p83rtazvhx
- SHA256 57b8d1f1afc63450aff6f6c4a3ac9af5c7f7e1ea8de0187987df2ce051cd2ea5
Malware Config
Extracted
-
remcos
-
3.8.0 Pro
-
RemoteHost
-
msasteelalloys.cc:2489
-
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-ML5PH8
-
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.
- Remcos family
- 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.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\57b8d1f1afc63450aff6f6c4a3ac9af5c7f7e1ea8de0187987df2ce051cd2ea5.exe"C:\Users\Admin\AppData\Local\Temp\57b8d1f1afc63450aff6f6c4a3ac9af5c7f7e1ea8de0187987df2ce051cd2ea5.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\OEKwjNzJTBqNPS.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\OEKwjNzJTBqNPS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpACCA.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\57b8d1f1afc63450aff6f6c4a3ac9af5c7f7e1ea8de0187987df2ce051cd2ea5.exe"C:\Users\Admin\AppData\Local\Temp\57b8d1f1afc63450aff6f6c4a3ac9af5c7f7e1ea8de0187987df2ce051cd2ea5.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_x0xqgzb4.rqy.ps1
tmpACCA.tmp
memory/228-52-0x0000000007210000-0x000000000722E000-memory.dmp
memory/228-15-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
memory/228-55-0x0000000007570000-0x000000000758A000-memory.dmp
memory/228-13-0x0000000002A20000-0x0000000002A56000-memory.dmp
memory/228-56-0x00000000075F0000-0x00000000075FA000-memory.dmp
memory/228-62-0x00000000078B0000-0x00000000078B8000-memory.dmp
memory/228-61-0x00000000078C0000-0x00000000078DA000-memory.dmp
memory/228-60-0x00000000077C0000-0x00000000077D5000-memory.dmp
memory/228-59-0x00000000077B0000-0x00000000077BE000-memory.dmp
memory/228-58-0x0000000007780000-0x0000000007791000-memory.dmp
memory/228-57-0x0000000007800000-0x0000000007896000-memory.dmp
memory/228-54-0x0000000007BC0000-0x000000000823A000-memory.dmp
memory/228-14-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
memory/228-37-0x0000000005C10000-0x0000000005C76000-memory.dmp
memory/228-38-0x0000000005DE0000-0x0000000005E46000-memory.dmp
memory/228-36-0x0000000005D40000-0x0000000005D62000-memory.dmp
memory/228-17-0x0000000005520000-0x0000000005B4A000-memory.dmp
memory/228-39-0x0000000005E50000-0x00000000061A7000-memory.dmp
memory/228-40-0x0000000006250000-0x000000000626E000-memory.dmp
memory/228-41-0x00000000062D0000-0x000000000631C000-memory.dmp
memory/228-42-0x00000000067F0000-0x0000000006824000-memory.dmp
memory/228-43-0x0000000070F80000-0x0000000070FCC000-memory.dmp
memory/228-53-0x0000000007440000-0x00000000074E4000-memory.dmp
memory/4900-97-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-90-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-22-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-71-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-25-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-26-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-21-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-19-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-18-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-102-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-67-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-70-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-95-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-29-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-83-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-84-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4900-89-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-1-0x0000000005B70000-0x0000000006116000-memory.dmp
memory/5468-2-0x00000000054D0000-0x0000000005562000-memory.dmp
memory/5468-0-0x0000000000950000-0x0000000000A3C000-memory.dmp
memory/5468-3-0x0000000005790000-0x00000000057A0000-memory.dmp
memory/5468-4-0x0000000005580000-0x000000000558A000-memory.dmp
memory/5468-5-0x00000000058C0000-0x00000000058D4000-memory.dmp
memory/5468-6-0x0000000005790000-0x00000000057A0000-memory.dmp
memory/5468-7-0x0000000006ED0000-0x0000000006F90000-memory.dmp
memory/5468-8-0x00000000095F0000-0x000000000968C000-memory.dmp