remcos | eea9c58429ef1465aa760fada958b5d580e3ea0c2a40a7c11de9f5518f661706

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-W4O1LZ = "\"C:\\Windows\\SysWOW64\\WinDMRmanager\\$77-Update of anti root\""	cbab80f7f17d6c3830a17d7fee29cd30N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-W4O1LZ = "\"C:\\Windows\\SysWOW64\\WinDMRmanager\\$77-Update of anti root\""	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cbab80f7f17d6c3830a17d7fee29cd30N.exe

Deletes itself 1 IoCs

pid	Process
4892	iexplore.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-W4O1LZ = "\"C:\\Windows\\SysWOW64\\WinDMRmanager\\$77-Update of anti root\""	cbab80f7f17d6c3830a17d7fee29cd30N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-W4O1LZ = "\"C:\\Windows\\SysWOW64\\WinDMRmanager\\$77-Update of anti root\""	cbab80f7f17d6c3830a17d7fee29cd30N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-W4O1LZ = "\"C:\\Windows\\SysWOW64\\WinDMRmanager\\$77-Update of anti root\""	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-W4O1LZ = "\"C:\\Windows\\SysWOW64\\WinDMRmanager\\$77-Update of anti root\""	iexplore.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WinDMRmanager\$77-Update of anti root	cbab80f7f17d6c3830a17d7fee29cd30N.exe
File opened for modification	C:\Windows\SysWOW64\WinDMRmanager\$77-Update of anti root	cbab80f7f17d6c3830a17d7fee29cd30N.exe
File opened for modification	C:\Windows\SysWOW64\WinDMRmanager	cbab80f7f17d6c3830a17d7fee29cd30N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4100 set thread context of 4892	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	88
PID 4892 set thread context of 1072	4892	iexplore.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbab80f7f17d6c3830a17d7fee29cd30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry key 1 TTPs 2 IoCs

Modify Registry

pid	Process
1704	reg.exe
1640	reg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe
4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe
4892	iexplore.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 3480	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	84
PID 4100 wrote to memory of 3480	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	84
PID 4100 wrote to memory of 3480	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	84
PID 3480 wrote to memory of 1704	3480	cmd.exe	86
PID 3480 wrote to memory of 1704	3480	cmd.exe	86
PID 3480 wrote to memory of 1704	3480	cmd.exe	86
PID 4100 wrote to memory of 4892	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	88
PID 4100 wrote to memory of 4892	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	88
PID 4100 wrote to memory of 4892	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	88
PID 4100 wrote to memory of 4892	4100	cbab80f7f17d6c3830a17d7fee29cd30N.exe	88
PID 4892 wrote to memory of 1400	4892	iexplore.exe	89
PID 4892 wrote to memory of 1400	4892	iexplore.exe	89
PID 4892 wrote to memory of 1400	4892	iexplore.exe	89
PID 4892 wrote to memory of 1072	4892	iexplore.exe	91
PID 4892 wrote to memory of 1072	4892	iexplore.exe	91
PID 4892 wrote to memory of 1072	4892	iexplore.exe	91
PID 4892 wrote to memory of 1072	4892	iexplore.exe	91
PID 1400 wrote to memory of 1640	1400	cmd.exe	92
PID 1400 wrote to memory of 1640	1400	cmd.exe	92
PID 1400 wrote to memory of 1640	1400	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\cbab80f7f17d6c3830a17d7fee29cd30N.exe
"C:\Users\Admin\AppData\Local\Temp\cbab80f7f17d6c3830a17d7fee29cd30N.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4100
- 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
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3480
- - 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
    3⤵
    - UAC bypass
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:1704
- \??\c:\program files (x86)\internet explorer\iexplore.exe
  "c:\program files (x86)\internet explorer\iexplore.exe"
  2⤵
  - Adds policy Run key to start application
  - Deletes itself
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4892
- - 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
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1400
  - - 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
      4⤵
      UAC bypass
      System Location Discovery: System Language Discovery
      Modifies registry key
      PID:1640
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:1072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery