Analysis Overview
SHA256
c0655fbc9631b46f22ca1e61594e98e4ce4061e51a63ccae5d112ac74fa3ff6c
Threat Level: Known bad
The file new.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Remcos family
UAC bypass
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in System32 directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Modifies registry key
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-12 21:05
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 21:05
Reported
2024-08-12 21:08
Platform
win10v2004-20240802-en
Max time kernel
148s
Max time network
150s
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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\new.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3IZME9 = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Users\Admin\AppData\Local\Temp\new.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3IZME9 = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Users\Admin\AppData\Local\Temp\new.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3IZME9 = "\"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-3IZME9 = "\"C:\\Windows\\SysWOW64\\Windows\\Windows.exe\"" | C:\Windows\SysWOW64\Windows\Windows.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3IZME9 = "\"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-3IZME9 = "\"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 created | C:\Windows\SysWOW64\Windows\Windows.exe | C:\Users\Admin\AppData\Local\Temp\new.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Windows\Windows.exe | C:\Users\Admin\AppData\Local\Temp\new.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Windows | C:\Users\Admin\AppData\Local\Temp\new.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4888 set thread context of 872 | N/A | C:\Windows\SysWOW64\Windows\Windows.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
| PID 872 set thread context of 4824 | 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\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:\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\reg.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\new.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\cmd.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\new.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: 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 WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\new.exe
"C:\Users\Admin\AppData\Local\Temp\new.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.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 | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 99.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.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 | 43.229.111.52.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 | 8.8.8.8:53 | 10.27.171.150.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 | 147.185.221.21:64076 | k-peterson.gl.at.ply.gg | tcp |
Files
C:\Windows\SysWOW64\Windows\Windows.exe
| MD5 | ef2d8a16de6f9ecc5c53fd1fb3f5156a |
| SHA1 | 2646722bb3cff01dfd3276ef94be73ab0c065e4d |
| SHA256 | c0655fbc9631b46f22ca1e61594e98e4ce4061e51a63ccae5d112ac74fa3ff6c |
| SHA512 | 8a4f6bd37d1e0161b11d8161c1f564f6cd7a1931beb74727a905eb408379189fecff1334201174eca7c422d32777f1baf169c45d8d90ab4cd11040d396b22446 |
memory/872-33-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-34-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-35-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-39-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-36-0x0000000000500000-0x0000000000582000-memory.dmp
memory/4824-40-0x00000000012F0000-0x0000000001372000-memory.dmp
memory/4824-41-0x00000000012F0000-0x0000000001372000-memory.dmp
memory/872-42-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-43-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-44-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-45-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-46-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-47-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-48-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-49-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-50-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-51-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-52-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-53-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-54-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-55-0x0000000000500000-0x0000000000582000-memory.dmp
memory/872-56-0x0000000000500000-0x0000000000582000-memory.dmp