Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20250314-en - resource tags
- submitted
20/03/2025, 08:10
General
- Target 31a75f571c3add7fb8778f266625218f.exe
- Size 949KB
- Sample250320-j2wr2axyc1
- SHA256 cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
Malware Config
Extracted
-
remcos
-
RemoteHost
-
192.3.176.138:57668
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
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-OKIAOG
-
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.
- 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.
- 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 16 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\31a75f571c3add7fb8778f266625218f.exe"C:\Users\Admin\AppData\Local\Temp\31a75f571c3add7fb8778f266625218f.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\yYVgLIENPs.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\yYVgLIENPs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3A2.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\31a75f571c3add7fb8778f266625218f.exe"C:\Users\Admin\AppData\Local\Temp\31a75f571c3add7fb8778f266625218f.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_10f5unp4.zzm.ps1
tmpA3A2.tmp
memory/728-67-0x00000000078D0000-0x00000000078DE000-memory.dmp
memory/728-68-0x00000000078E0000-0x00000000078F4000-memory.dmp
memory/728-73-0x0000000074950000-0x0000000075100000-memory.dmp
memory/728-70-0x00000000079C0000-0x00000000079C8000-memory.dmp
memory/728-69-0x00000000079E0000-0x00000000079FA000-memory.dmp
memory/728-66-0x00000000078A0000-0x00000000078B1000-memory.dmp
memory/728-65-0x0000000007920000-0x00000000079B6000-memory.dmp
memory/728-64-0x0000000007710000-0x000000000771A000-memory.dmp
memory/728-63-0x00000000076A0000-0x00000000076BA000-memory.dmp
memory/728-46-0x0000000005EC0000-0x0000000006214000-memory.dmp
memory/728-16-0x0000000002A70000-0x0000000002AA6000-memory.dmp
memory/728-62-0x0000000007CE0000-0x000000000835A000-memory.dmp
memory/728-19-0x0000000005610000-0x0000000005C38000-memory.dmp
memory/728-18-0x0000000074950000-0x0000000075100000-memory.dmp
memory/728-20-0x0000000074950000-0x0000000075100000-memory.dmp
memory/728-61-0x0000000007560000-0x0000000007603000-memory.dmp
memory/728-60-0x0000000007330000-0x000000000734E000-memory.dmp
memory/728-49-0x0000000006940000-0x0000000006972000-memory.dmp
memory/728-50-0x0000000071140000-0x000000007118C000-memory.dmp
memory/728-48-0x0000000006420000-0x000000000646C000-memory.dmp
memory/728-28-0x00000000053B0000-0x00000000053D2000-memory.dmp
memory/728-35-0x0000000005C40000-0x0000000005CA6000-memory.dmp
memory/728-47-0x0000000006360000-0x000000000637E000-memory.dmp
memory/728-34-0x0000000005450000-0x00000000054B6000-memory.dmp
memory/728-15-0x0000000074950000-0x0000000075100000-memory.dmp
memory/2948-0-0x000000007495E000-0x000000007495F000-memory.dmp
memory/2948-9-0x0000000074950000-0x0000000075100000-memory.dmp
memory/2948-8-0x000000007495E000-0x000000007495F000-memory.dmp
memory/2948-1-0x0000000000F80000-0x0000000001072000-memory.dmp
memory/2948-37-0x0000000074950000-0x0000000075100000-memory.dmp
memory/2948-5-0x0000000074950000-0x0000000075100000-memory.dmp
memory/2948-6-0x0000000005D10000-0x0000000005DAC000-memory.dmp
memory/2948-4-0x0000000005A80000-0x0000000005A8A000-memory.dmp
memory/2948-7-0x0000000005CD0000-0x0000000005CE0000-memory.dmp
memory/2948-3-0x0000000005AA0000-0x0000000005B32000-memory.dmp
memory/2948-2-0x0000000005FB0000-0x0000000006554000-memory.dmp
memory/2948-10-0x0000000007010000-0x00000000070D4000-memory.dmp
memory/4496-21-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-22-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-41-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-23-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-27-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-25-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-42-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-43-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-81-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4496-82-0x0000000000400000-0x000000000047F000-memory.dmp