Analysis Overview
SHA256
dc0e648c50a81a0be80931b39a973d0edf899eb09c778e68a8b6025635696a05
Threat Level: Known bad
The file idk.exe was found to be: Known bad.
Malicious Activity Summary
UAC bypass
Remcos
Remcos family
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in System32 directory
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Modifies registry key
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-12 21:03
Signatures
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-12 21:03
Reported
2024-08-12 21:21
Platform
win10v2004-20240802-en
Max time kernel
1049s
Max time network
1036s
Command Line
Signatures
Remcos
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\SysWOW64\reg.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\SysWOW64\reg.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\SysWOW64\reg.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-HIITQK = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-HIITQK = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-HIITQK = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-HIITQK = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-HIITQK = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-HIITQK = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\Windows\Windows.exe | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Windows | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| File created | C:\Windows\SysWOW64\Windows\Windows.exe | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2856 set thread context of 2160 | N/A | C:\Windows\SysWOW64\Windows\Windows.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
| PID 2160 set thread context of 3520 | N/A | \??\c:\program files (x86)\internet explorer\iexplore.exe | C:\Windows\SysWOW64\svchost.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\reg.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\reg.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\reg.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\idk.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
| N/A | N/A | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\idk.exe
"C:\Users\Admin\AppData\Local\Temp\idk.exe"
C:\Windows\SysWOW64\cmd.exe
/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\Windows\Windows.exe
"C:\Windows\SysWOW64\Windows\Windows.exe"
C:\Windows\SysWOW64\cmd.exe
/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe"
C:\Windows\SysWOW64\cmd.exe
/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | k-peterson.gl.at.ply.gg | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 40.58.20.217.in-addr.arpa | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 35.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 26.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | k-peterson.gl.at.ply.gg | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | k-peterson.gl.at.ply.gg | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | k-peterson.gl.at.ply.gg | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
Files
C:\Windows\SysWOW64\Windows\Windows.exe
| MD5 | 783b3ecb43e1e04cac88e273c7ad2753 |
| SHA1 | 4df53206d490af68c1352091ba7a51fbe6d23139 |
| SHA256 | dc0e648c50a81a0be80931b39a973d0edf899eb09c778e68a8b6025635696a05 |
| SHA512 | cc5b563719391acf3a3c54d4ad527e59a0181f57d51a4fc97e7a3a19372392cfa98710f61962844948565e150b92ebf37b2710e30455506d11cfeb174986309b |
memory/2160-33-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-34-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-35-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-40-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-43-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-36-0x0000000000900000-0x0000000000982000-memory.dmp
memory/3520-44-0x0000000000EB0000-0x0000000000F32000-memory.dmp
memory/2160-46-0x0000000000900000-0x0000000000982000-memory.dmp
memory/3520-45-0x0000000000EB0000-0x0000000000F32000-memory.dmp
memory/2160-52-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-53-0x0000000000900000-0x0000000000982000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | a68c17cb4182ba7393c1985f5eb11c4c |
| SHA1 | 206e49f389defdc9382649a3583105bebfbc815a |
| SHA256 | 56a1f9c5943ae7be7edfc049f1e5da92e626dcc5beeb528e730b720c06f593a6 |
| SHA512 | 3d114e8a734ff30c515ac1d443125cbd2088bc581c06f645c33e98e686aff73873d444aed8fef6562e1264fd247226b2780038059e10e40f4074a22ae19f2c32 |
memory/2160-58-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-59-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-65-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-66-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-71-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-72-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-78-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-79-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-85-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-86-0x0000000000900000-0x0000000000982000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 8bc72116708a80776d2d349e9e1ec6ab |
| SHA1 | a96df3b24b8dee6776098bfd81e030ca589da5ab |
| SHA256 | 13f6e504c34399aa78b92fc003845b229fcf091e1315b4542c21ba9a4532851b |
| SHA512 | 00447ab975ae8aed2bfa0eb018aaf7273f6028379b520a21694084485eefc5242b2ad04ba5e0c1db30ccb353fa6f36c1e068117e9c8be1671b335768b936880f |
memory/2160-91-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-93-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-98-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-99-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-104-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-105-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-111-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-112-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-117-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-118-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-124-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-125-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-128-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-129-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-135-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-136-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-141-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-142-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-147-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-148-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-153-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-154-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-160-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-161-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-166-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-167-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-173-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-174-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-179-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-180-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-185-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-187-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-192-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-193-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-198-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-200-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-205-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-206-0x0000000000900000-0x0000000000982000-memory.dmp
memory/2160-211-0x0000000000900000-0x0000000000982000-memory.dmp