Analysis
- max time kernel
148s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
27/05/2024, 12:14
General
- Target SKM-2752024.exe
- Size 1004KB
- Sample240527-pea5psbd3s
- SHA256 4e1899294fcd9043ed50cb9f02a7085b4c243deb30e3c2d5bdaeac2569fe0e6e
Malware Config
Extracted
-
remcos
-
76364
-
103.150.8.12:5689
-
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-FF0K7G
-
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).
- Creates scheduled task(s) 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 WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe"C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\TqcSXSH.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TqcSXSH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp83D6.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe"C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_zngv1pik.1tj.ps1
tmp83D6.tmp
memory/392-40-0x0000000005FB0000-0x0000000005FCE000-memory.dmp
memory/392-17-0x00000000050A0000-0x00000000056C8000-memory.dmp
memory/392-69-0x00000000075F0000-0x00000000075F8000-memory.dmp
memory/392-68-0x0000000007610000-0x000000000762A000-memory.dmp
memory/392-67-0x0000000007510000-0x0000000007524000-memory.dmp
memory/392-66-0x0000000007500000-0x000000000750E000-memory.dmp
memory/392-65-0x00000000074D0000-0x00000000074E1000-memory.dmp
memory/392-64-0x0000000007550000-0x00000000075E6000-memory.dmp
memory/392-63-0x0000000007340000-0x000000000734A000-memory.dmp
memory/392-15-0x0000000004A30000-0x0000000004A66000-memory.dmp
memory/392-16-0x0000000074590000-0x0000000074D40000-memory.dmp
memory/392-62-0x00000000072D0000-0x00000000072EA000-memory.dmp
memory/392-42-0x00000000060C0000-0x000000000610C000-memory.dmp
memory/392-21-0x0000000005930000-0x0000000005996000-memory.dmp
memory/392-22-0x0000000074590000-0x0000000074D40000-memory.dmp
memory/392-61-0x0000000007920000-0x0000000007F9A000-memory.dmp
memory/392-26-0x00000000059A0000-0x0000000005CF4000-memory.dmp
memory/392-60-0x00000000071C0000-0x0000000007263000-memory.dmp
memory/392-59-0x0000000006540000-0x000000000655E000-memory.dmp
memory/392-49-0x000000006F0A0000-0x000000006F0EC000-memory.dmp
memory/392-48-0x0000000007180000-0x00000000071B2000-memory.dmp
memory/392-72-0x0000000074590000-0x0000000074D40000-memory.dmp
memory/392-20-0x00000000058C0000-0x0000000005926000-memory.dmp
memory/392-19-0x0000000005720000-0x0000000005742000-memory.dmp
memory/1520-35-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-33-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-44-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-43-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-45-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-23-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-25-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-73-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-24-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1520-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2180-1-0x0000000000620000-0x000000000071E000-memory.dmp
memory/2180-5-0x0000000074590000-0x0000000074D40000-memory.dmp
memory/2180-8-0x0000000005560000-0x0000000005570000-memory.dmp
memory/2180-0-0x000000007459E000-0x000000007459F000-memory.dmp
memory/2180-6-0x0000000005510000-0x0000000005526000-memory.dmp
memory/2180-9-0x0000000006510000-0x00000000065CE000-memory.dmp
memory/2180-4-0x00000000051D0000-0x00000000051DA000-memory.dmp
memory/2180-3-0x0000000005100000-0x0000000005192000-memory.dmp
memory/2180-10-0x0000000008B40000-0x0000000008BDC000-memory.dmp
memory/2180-2-0x00000000055B0000-0x0000000005B54000-memory.dmp
memory/2180-7-0x0000000005550000-0x000000000555C000-memory.dmp
memory/2180-41-0x0000000074590000-0x0000000074D40000-memory.dmp