remcos | 6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe = "0"	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/1292-46-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4776-48-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4484-47-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4776-48-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4484-47-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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.

execution

PowerShell

T1059.001

pid	Process
3812	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe = "0"	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	ngen.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 2300 set thread context of 4484	2300	ngen.exe	113
PID 2300 set thread context of 4776	2300	ngen.exe	114
PID 2300 set thread context of 1292	2300	ngen.exe	115

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 4 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	ngen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngen.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3812	powershell.exe
3812	powershell.exe
1292	ngen.exe
1292	ngen.exe
4484	ngen.exe
4484	ngen.exe
4484	ngen.exe
4484	ngen.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2300	ngen.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2300	ngen.exe
2300	ngen.exe
2300	ngen.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe
Token: SeDebugPrivilege	3812	powershell.exe
Token: SeDebugPrivilege	1292	ngen.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 3812	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	90
PID 4992 wrote to memory of 3812	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	90
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 1772	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	92
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 3488	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	93
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 2300	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	94
PID 4992 wrote to memory of 1360	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	95
PID 4992 wrote to memory of 1360	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	95
PID 4992 wrote to memory of 1360	4992	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe	95
PID 2300 wrote to memory of 4484	2300	ngen.exe	113
PID 2300 wrote to memory of 4484	2300	ngen.exe	113
PID 2300 wrote to memory of 4484	2300	ngen.exe	113
PID 2300 wrote to memory of 4484	2300	ngen.exe	113
PID 2300 wrote to memory of 4776	2300	ngen.exe	114
PID 2300 wrote to memory of 4776	2300	ngen.exe	114
PID 2300 wrote to memory of 4776	2300	ngen.exe	114
PID 2300 wrote to memory of 4776	2300	ngen.exe	114
PID 2300 wrote to memory of 1292	2300	ngen.exe	115
PID 2300 wrote to memory of 1292	2300	ngen.exe	115
PID 2300 wrote to memory of 1292	2300	ngen.exe	115
PID 2300 wrote to memory of 1292	2300	ngen.exe	115

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe

C:\Users\Admin\AppData\Local\Temp\6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe
"C:\Users\Admin\AppData\Local\Temp\6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe"
1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4992
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6e2e6d5f67b4bd2df522de36e957e5d0b3f97eb8b3a6a5460cc3aa32cf112cdc.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3812
- C:\Windows\System32\svchost.exe
  "C:\Windows\System32\svchost.exe"
  2⤵
  PID:1772
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:3488
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe /stext "C:\Users\Admin\AppData\Local\Temp\twqcaauayrexvavcobwgn"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4484
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe /stext "C:\Users\Admin\AppData\Local\Temp\dydvbsnbmzwcfgrgfeihqhdi"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:4776
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe /stext "C:\Users\Admin\AppData\Local\Temp\gtjfclyvahopiufkoodbbuqzhvtn"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
  2⤵
  PID:1360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry