darkcomet | 2ca4803498d7d375a61bfab2a3a4cf7e0eec41d116e50a838791a55b164e0f8c

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\msdcsc.exe"	mysqlconf.exe

Modifies firewall policy service 3 TTPs 3 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Modifies security service 2 TTPs 1 IoCs

Modify Registry

Windows Service

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

Hidden Files and Directories

T1564.001

pid	Process
4892	attrib.exe
1112	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
3912	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000\Software\Microsoft\Windows\CurrentVersion\Run\System32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\msdcsc.exe"	mysqlconf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000\Software\Microsoft\Windows\CurrentVersion\Run\System32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\msdcsc.exe"	msdcsc.exe

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral28/memory/4184-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/files/0x001900000002ab92-6.dat	upx
behavioral28/memory/4184-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-121-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-122-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-123-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-124-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3912-126-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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	mysqlconf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	mysqlconf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3912	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4184	mysqlconf.exe
Token: SeSecurityPrivilege	4184	mysqlconf.exe
Token: SeTakeOwnershipPrivilege	4184	mysqlconf.exe
Token: SeLoadDriverPrivilege	4184	mysqlconf.exe
Token: SeSystemProfilePrivilege	4184	mysqlconf.exe
Token: SeSystemtimePrivilege	4184	mysqlconf.exe
Token: SeProfSingleProcessPrivilege	4184	mysqlconf.exe
Token: SeIncBasePriorityPrivilege	4184	mysqlconf.exe
Token: SeCreatePagefilePrivilege	4184	mysqlconf.exe
Token: SeBackupPrivilege	4184	mysqlconf.exe
Token: SeRestorePrivilege	4184	mysqlconf.exe
Token: SeShutdownPrivilege	4184	mysqlconf.exe
Token: SeDebugPrivilege	4184	mysqlconf.exe
Token: SeSystemEnvironmentPrivilege	4184	mysqlconf.exe
Token: SeChangeNotifyPrivilege	4184	mysqlconf.exe
Token: SeRemoteShutdownPrivilege	4184	mysqlconf.exe
Token: SeUndockPrivilege	4184	mysqlconf.exe
Token: SeManageVolumePrivilege	4184	mysqlconf.exe
Token: SeImpersonatePrivilege	4184	mysqlconf.exe
Token: SeCreateGlobalPrivilege	4184	mysqlconf.exe
Token: 33	4184	mysqlconf.exe
Token: 34	4184	mysqlconf.exe
Token: 35	4184	mysqlconf.exe
Token: 36	4184	mysqlconf.exe
Token: SeIncreaseQuotaPrivilege	3912	msdcsc.exe
Token: SeSecurityPrivilege	3912	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3912	msdcsc.exe
Token: SeLoadDriverPrivilege	3912	msdcsc.exe
Token: SeSystemProfilePrivilege	3912	msdcsc.exe
Token: SeSystemtimePrivilege	3912	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3912	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3912	msdcsc.exe
Token: SeCreatePagefilePrivilege	3912	msdcsc.exe
Token: SeBackupPrivilege	3912	msdcsc.exe
Token: SeRestorePrivilege	3912	msdcsc.exe
Token: SeShutdownPrivilege	3912	msdcsc.exe
Token: SeDebugPrivilege	3912	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3912	msdcsc.exe
Token: SeChangeNotifyPrivilege	3912	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3912	msdcsc.exe
Token: SeUndockPrivilege	3912	msdcsc.exe
Token: SeManageVolumePrivilege	3912	msdcsc.exe
Token: SeImpersonatePrivilege	3912	msdcsc.exe
Token: SeCreateGlobalPrivilege	3912	msdcsc.exe
Token: 33	3912	msdcsc.exe
Token: 34	3912	msdcsc.exe
Token: 35	3912	msdcsc.exe
Token: 36	3912	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3912	msdcsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 2376	4184	mysqlconf.exe	77
PID 4184 wrote to memory of 2376	4184	mysqlconf.exe	77
PID 4184 wrote to memory of 2376	4184	mysqlconf.exe	77
PID 4184 wrote to memory of 3480	4184	mysqlconf.exe	79
PID 4184 wrote to memory of 3480	4184	mysqlconf.exe	79
PID 4184 wrote to memory of 3480	4184	mysqlconf.exe	79
PID 2376 wrote to memory of 4892	2376	cmd.exe	81
PID 2376 wrote to memory of 4892	2376	cmd.exe	81
PID 2376 wrote to memory of 4892	2376	cmd.exe	81
PID 3480 wrote to memory of 1112	3480	cmd.exe	82
PID 3480 wrote to memory of 1112	3480	cmd.exe	82
PID 3480 wrote to memory of 1112	3480	cmd.exe	82
PID 4184 wrote to memory of 3912	4184	mysqlconf.exe	83
PID 4184 wrote to memory of 3912	4184	mysqlconf.exe	83
PID 4184 wrote to memory of 3912	4184	mysqlconf.exe	83

System policy modification 1 TTPs 3 IoCs

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
1112	attrib.exe
4892	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mysqlconf.exe
"C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mysqlconf.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mysqlconf.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mysqlconf.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3480
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1112
- C:\Users\Admin\AppData\Local\Temp\Windows\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:3912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry