Analysis
- max time kernel
148s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
10/05/2024, 01:18
General
- Target 3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe
- Size 1.0MB
- Sample240510-bpcvdsac9z
- SHA256 3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
Malware Config
Extracted
-
remcos
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STHost
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89.249.73.162:2479
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
-
mutex
Rmc-TH3UQH
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screenshot_crypt
false
-
screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 19 IoCs
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.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\Roaming\siRiSxOKgeg.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\siRiSxOKgeg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8107.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"2⤵
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_y1obtvap.qop.ps1
tmp8107.tmp
memory/1036-45-0x0000000006770000-0x00000000067BC000-memory.dmp
memory/1036-70-0x0000000074800000-0x0000000074FB0000-memory.dmp
memory/1036-46-0x0000000006820000-0x0000000006852000-memory.dmp
memory/1036-67-0x0000000007890000-0x0000000007898000-memory.dmp
memory/1036-66-0x00000000078B0000-0x00000000078CA000-memory.dmp
memory/1036-65-0x00000000077B0000-0x00000000077C4000-memory.dmp
memory/1036-64-0x00000000077A0000-0x00000000077AE000-memory.dmp
memory/1036-47-0x0000000075090000-0x00000000750DC000-memory.dmp
memory/1036-16-0x0000000005360000-0x0000000005988000-memory.dmp
memory/1036-15-0x0000000074800000-0x0000000074FB0000-memory.dmp
memory/1036-17-0x0000000074800000-0x0000000074FB0000-memory.dmp
memory/1036-63-0x0000000007770000-0x0000000007781000-memory.dmp
memory/1036-19-0x00000000059C0000-0x00000000059E2000-memory.dmp
memory/1036-21-0x0000000005BD0000-0x0000000005C36000-memory.dmp
memory/1036-20-0x0000000005B60000-0x0000000005BC6000-memory.dmp
memory/1036-22-0x0000000074800000-0x0000000074FB0000-memory.dmp
memory/1036-62-0x00000000077F0000-0x0000000007886000-memory.dmp
memory/1036-61-0x00000000075E0000-0x00000000075EA000-memory.dmp
memory/1036-35-0x0000000005C40000-0x0000000005F94000-memory.dmp
memory/1036-60-0x0000000007570000-0x000000000758A000-memory.dmp
memory/1036-59-0x0000000007BD0000-0x000000000824A000-memory.dmp
memory/1036-58-0x00000000072A0000-0x0000000007343000-memory.dmp
memory/1036-57-0x0000000006860000-0x000000000687E000-memory.dmp
memory/1036-14-0x0000000004C70000-0x0000000004CA6000-memory.dmp
memory/1036-44-0x0000000006220000-0x000000000623E000-memory.dmp
memory/1764-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-109-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-96-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-95-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-76-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1764-77-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4492-0-0x000000007480E000-0x000000007480F000-memory.dmp
memory/4492-1-0x0000000000C30000-0x0000000000D36000-memory.dmp
memory/4492-5-0x0000000074800000-0x0000000074FB0000-memory.dmp
memory/4492-6-0x0000000005B40000-0x0000000005B60000-memory.dmp
memory/4492-7-0x0000000005B60000-0x0000000005B74000-memory.dmp
memory/4492-8-0x0000000009730000-0x00000000097F0000-memory.dmp
memory/4492-9-0x000000000C890000-0x000000000C92C000-memory.dmp
memory/4492-3-0x00000000057B0000-0x0000000005842000-memory.dmp
memory/4492-2-0x0000000005D60000-0x0000000006304000-memory.dmp
memory/4492-43-0x0000000074800000-0x0000000074FB0000-memory.dmp
memory/4492-4-0x0000000005730000-0x000000000573A000-memory.dmp