Malware Analysis Report

2025-01-02 03:07

Sample ID 240814-kjhm5axemp
Target c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979
SHA256 c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979
Tags
remotehost remcos discovery evasion persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979

Threat Level: Known bad

The file c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979 was found to be: Known bad.

Malicious Activity Summary

remotehost remcos discovery evasion persistence rat trojan

Remcos family

UAC bypass

Remcos

Adds policy Run key to start application

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Deletes itself

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Modifies registry key

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-14 08:37

Signatures

Remcos family

remcos

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-14 08:37

Reported

2024-08-14 08:40

Platform

win7-20240708-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe"

Signatures

Remcos

rat remcos

UAC bypass

evasion trojan
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

Adds policy Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\ProgramData\Remcos\Updater.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run \??\c:\program files (x86)\internet explorer\iexplore.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" \??\c:\program files (x86)\internet explorer\iexplore.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\ProgramData\Remcos\Updater.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A \??\c:\program files (x86)\internet explorer\iexplore.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Remcos\Updater.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\ProgramData\Remcos\Updater.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\ProgramData\Remcos\Updater.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" \??\c:\program files (x86)\internet explorer\iexplore.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" \??\c:\program files (x86)\internet explorer\iexplore.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2100 set thread context of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2064 set thread context of 2828 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

discovery
Description Indicator Process Target
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\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.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:\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\svchost.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:\ProgramData\Remcos\Updater.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.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:\ProgramData\Remcos\Updater.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\ProgramData\Remcos\Updater.exe N/A
N/A N/A \??\c:\program files (x86)\internet explorer\iexplore.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\ProgramData\Remcos\Updater.exe N/A
Token: SeBackupPrivilege N/A C:\ProgramData\Remcos\Updater.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2136 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 2136 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 2136 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 2136 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 1712 wrote to memory of 2120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1712 wrote to memory of 2120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1712 wrote to memory of 2120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1712 wrote to memory of 2120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2136 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 1980 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2100 wrote to memory of 2064 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 2064 wrote to memory of 1968 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1980 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1968 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 2064 wrote to memory of 2828 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe

"C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.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:\ProgramData\Remcos\Updater.exe

"C:\ProgramData\Remcos\Updater.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\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

C:\Windows\SysWOW64\svchost.exe

svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 mode-clusters.gl.at.ply.gg udp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp

Files

\ProgramData\Remcos\Updater.exe

MD5 fbb5244856ca9451f255715fda74cbd6
SHA1 25a0bad14be8583a4d461e97995f9532b2f1eedf
SHA256 c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979
SHA512 c0122730d7e11fb1cf103ec61d1ed7f7da5e3cb02f1a32abb70445348f0d21b56f0a128849d5c27a415cb18b59323fd0c78ea33afc53a6fd9d2291dc1f9f31bb

memory/2064-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2064-13-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-12-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-15-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-16-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2828-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2828-23-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-24-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-26-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-25-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-27-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-30-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-31-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-32-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-33-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-34-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-35-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-36-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-37-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-39-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-40-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-41-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-42-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-43-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-44-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-45-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-46-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-47-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-48-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-49-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-50-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-51-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-52-0x0000000000090000-0x0000000000112000-memory.dmp

memory/2064-53-0x0000000000090000-0x0000000000112000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-14 08:37

Reported

2024-08-14 08:40

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe"

Signatures

Remcos

rat remcos

UAC bypass

evasion trojan
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

Adds policy Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" \??\c:\program files (x86)\internet explorer\iexplore.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\ProgramData\Remcos\Updater.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\ProgramData\Remcos\Updater.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run \??\c:\program files (x86)\internet explorer\iexplore.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\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A \??\c:\program files (x86)\internet explorer\iexplore.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Remcos\Updater.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\ProgramData\Remcos\Updater.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" C:\ProgramData\Remcos\Updater.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" \??\c:\program files (x86)\internet explorer\iexplore.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CFARP3 = "\"C:\\ProgramData\\Remcos\\Updater.exe\"" \??\c:\program files (x86)\internet explorer\iexplore.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 320 set thread context of 1196 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 1196 set thread context of 4584 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

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:\ProgramData\Remcos\Updater.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\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.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:\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\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.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:\ProgramData\Remcos\Updater.exe N/A
N/A N/A C:\ProgramData\Remcos\Updater.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\ProgramData\Remcos\Updater.exe N/A
N/A N/A \??\c:\program files (x86)\internet explorer\iexplore.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 876 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 876 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 876 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\Windows\SysWOW64\cmd.exe
PID 5036 wrote to memory of 1272 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 5036 wrote to memory of 1272 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 5036 wrote to memory of 1272 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 876 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 876 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 876 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe C:\ProgramData\Remcos\Updater.exe
PID 320 wrote to memory of 804 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 320 wrote to memory of 804 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 320 wrote to memory of 804 N/A C:\ProgramData\Remcos\Updater.exe C:\Windows\SysWOW64\cmd.exe
PID 320 wrote to memory of 1196 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 320 wrote to memory of 1196 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 320 wrote to memory of 1196 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 320 wrote to memory of 1196 N/A C:\ProgramData\Remcos\Updater.exe \??\c:\program files (x86)\internet explorer\iexplore.exe
PID 804 wrote to memory of 3996 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 804 wrote to memory of 3996 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 804 wrote to memory of 3996 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 1196 wrote to memory of 3800 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 1196 wrote to memory of 3800 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 1196 wrote to memory of 3800 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\cmd.exe
PID 1196 wrote to memory of 4584 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 1196 wrote to memory of 4584 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 1196 wrote to memory of 4584 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 1196 wrote to memory of 4584 N/A \??\c:\program files (x86)\internet explorer\iexplore.exe C:\Windows\SysWOW64\svchost.exe
PID 3800 wrote to memory of 2528 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 3800 wrote to memory of 2528 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 3800 wrote to memory of 2528 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.exe

"C:\Users\Admin\AppData\Local\Temp\c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979.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:\ProgramData\Remcos\Updater.exe

"C:\ProgramData\Remcos\Updater.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\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\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

Network

Country Destination Domain Proto
US 8.8.8.8:53 mode-clusters.gl.at.ply.gg udp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 21.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
NL 178.237.33.50:80 geoplugin.net tcp
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 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
NL 52.111.243.31:443 tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp
US 147.185.221.21:36304 mode-clusters.gl.at.ply.gg tcp

Files

C:\ProgramData\Remcos\Updater.exe

MD5 fbb5244856ca9451f255715fda74cbd6
SHA1 25a0bad14be8583a4d461e97995f9532b2f1eedf
SHA256 c60c8e8aae5599efe8074f15b92cc5298f41a713197438941296cfd94584b979
SHA512 c0122730d7e11fb1cf103ec61d1ed7f7da5e3cb02f1a32abb70445348f0d21b56f0a128849d5c27a415cb18b59323fd0c78ea33afc53a6fd9d2291dc1f9f31bb

memory/1196-34-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-35-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-33-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-36-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/4584-40-0x0000000000860000-0x00000000008E2000-memory.dmp

memory/4584-41-0x0000000000860000-0x00000000008E2000-memory.dmp

memory/1196-42-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-39-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-43-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-44-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-45-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-48-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-49-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-50-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-51-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-52-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-53-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-54-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-56-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-57-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-58-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-59-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-60-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-61-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-62-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-63-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-64-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-65-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-66-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-67-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-68-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-69-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-70-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-71-0x0000000000A00000-0x0000000000A82000-memory.dmp

memory/1196-72-0x0000000000A00000-0x0000000000A82000-memory.dmp