Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
11/05/2024, 08:32
General
- Target 869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
- Size 604KB
- Sample240511-ke9k2shb21
- SHA256 869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d
Malware Config
Extracted
-
remcos
-
1.7 Pro
-
NHS
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185.189.112.19:30311
-
audio_folder
audio
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audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
5
-
copy_file
remcos.exe
-
copy_folder
remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
install_path
%AppData%
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
nhs
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
remcos_lejjhxgdnt
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screens
-
screenshot_path
%AppData%
-
screenshot_time
1
-
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 2 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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RqlVhjJtK.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\RqlVhjJtK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAFA9.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_w3cttwa4.woi.ps1
tmpAFA9.tmp
memory/1352-79-0x0000000007310000-0x00000000073B3000-memory.dmp
memory/1352-81-0x0000000007AB0000-0x000000000812A000-memory.dmp
memory/1352-94-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1352-88-0x0000000007780000-0x0000000007788000-memory.dmp
memory/1352-87-0x00000000077A0000-0x00000000077BA000-memory.dmp
memory/1352-85-0x0000000007690000-0x000000000769E000-memory.dmp
memory/1352-84-0x0000000007660000-0x0000000007671000-memory.dmp
memory/1352-83-0x00000000076E0000-0x0000000007776000-memory.dmp
memory/1352-82-0x00000000074D0000-0x00000000074DA000-memory.dmp
memory/1352-17-0x0000000002820000-0x0000000002856000-memory.dmp
memory/1352-19-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1352-18-0x00000000053D0000-0x00000000059F8000-memory.dmp
memory/1352-57-0x00000000066E0000-0x0000000006712000-memory.dmp
memory/1352-68-0x0000000006740000-0x000000000675E000-memory.dmp
memory/1352-22-0x0000000005340000-0x00000000053A6000-memory.dmp
memory/1352-58-0x000000006F520000-0x000000006F56C000-memory.dmp
memory/1352-24-0x0000000005A00000-0x0000000005A66000-memory.dmp
memory/1352-21-0x00000000051A0000-0x00000000051C2000-memory.dmp
memory/1352-32-0x0000000005B30000-0x0000000005E84000-memory.dmp
memory/1352-37-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1352-55-0x0000000006140000-0x000000000618C000-memory.dmp
memory/1352-54-0x0000000006120000-0x000000000613E000-memory.dmp
memory/1352-20-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1520-2-0x0000000005910000-0x0000000005EB4000-memory.dmp
memory/1520-4-0x0000000005320000-0x000000000532A000-memory.dmp
memory/1520-6-0x00000000055B0000-0x00000000055C8000-memory.dmp
memory/1520-1-0x0000000000890000-0x000000000092C000-memory.dmp
memory/1520-56-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1520-3-0x0000000005360000-0x00000000053F2000-memory.dmp
memory/1520-5-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1520-7-0x0000000005700000-0x000000000570E000-memory.dmp
memory/1520-8-0x0000000005710000-0x0000000005726000-memory.dmp
memory/1520-12-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/1520-10-0x00000000090D0000-0x000000000916C000-memory.dmp
memory/1520-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp
memory/1520-9-0x0000000006A30000-0x0000000006A90000-memory.dmp
memory/1520-11-0x0000000074D3E000-0x0000000074D3F000-memory.dmp
memory/4600-38-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4600-69-0x000000006F520000-0x000000006F56C000-memory.dmp
memory/4600-86-0x0000000007660000-0x0000000007674000-memory.dmp
memory/4600-23-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4600-80-0x0000000007420000-0x000000000743A000-memory.dmp
memory/4600-26-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4600-95-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/5052-46-0x0000000000400000-0x0000000000417000-memory.dmp
memory/5052-41-0x0000000000400000-0x0000000000417000-memory.dmp
memory/5052-39-0x0000000000400000-0x0000000000417000-memory.dmp