darkcomet | 994d6a3c00f42e919b596a6234346a095521ce84013474aa462570aa49b0e3da

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-1-5-21-2253712635-4068079004-3870069674-1000\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
124	attrib.exe
4916	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
756	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-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Windows\CurrentVersion\Run\System32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\msdcsc.exe"	mysqlconf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Windows\CurrentVersion\Run\System32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\msdcsc.exe"	msdcsc.exe

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral28/memory/3096-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/files/0x001c00000002aaa1-6.dat	upx
behavioral28/memory/756-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/3096-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral28/memory/756-100-0x0000000000400000-0x00000000004B7000-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
756	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3096	mysqlconf.exe
Token: SeSecurityPrivilege	3096	mysqlconf.exe
Token: SeTakeOwnershipPrivilege	3096	mysqlconf.exe
Token: SeLoadDriverPrivilege	3096	mysqlconf.exe
Token: SeSystemProfilePrivilege	3096	mysqlconf.exe
Token: SeSystemtimePrivilege	3096	mysqlconf.exe
Token: SeProfSingleProcessPrivilege	3096	mysqlconf.exe
Token: SeIncBasePriorityPrivilege	3096	mysqlconf.exe
Token: SeCreatePagefilePrivilege	3096	mysqlconf.exe
Token: SeBackupPrivilege	3096	mysqlconf.exe
Token: SeRestorePrivilege	3096	mysqlconf.exe
Token: SeShutdownPrivilege	3096	mysqlconf.exe
Token: SeDebugPrivilege	3096	mysqlconf.exe
Token: SeSystemEnvironmentPrivilege	3096	mysqlconf.exe
Token: SeChangeNotifyPrivilege	3096	mysqlconf.exe
Token: SeRemoteShutdownPrivilege	3096	mysqlconf.exe
Token: SeUndockPrivilege	3096	mysqlconf.exe
Token: SeManageVolumePrivilege	3096	mysqlconf.exe
Token: SeImpersonatePrivilege	3096	mysqlconf.exe
Token: SeCreateGlobalPrivilege	3096	mysqlconf.exe
Token: 33	3096	mysqlconf.exe
Token: 34	3096	mysqlconf.exe
Token: 35	3096	mysqlconf.exe
Token: 36	3096	mysqlconf.exe
Token: SeIncreaseQuotaPrivilege	756	msdcsc.exe
Token: SeSecurityPrivilege	756	msdcsc.exe
Token: SeTakeOwnershipPrivilege	756	msdcsc.exe
Token: SeLoadDriverPrivilege	756	msdcsc.exe
Token: SeSystemProfilePrivilege	756	msdcsc.exe
Token: SeSystemtimePrivilege	756	msdcsc.exe
Token: SeProfSingleProcessPrivilege	756	msdcsc.exe
Token: SeIncBasePriorityPrivilege	756	msdcsc.exe
Token: SeCreatePagefilePrivilege	756	msdcsc.exe
Token: SeBackupPrivilege	756	msdcsc.exe
Token: SeRestorePrivilege	756	msdcsc.exe
Token: SeShutdownPrivilege	756	msdcsc.exe
Token: SeDebugPrivilege	756	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	756	msdcsc.exe
Token: SeChangeNotifyPrivilege	756	msdcsc.exe
Token: SeRemoteShutdownPrivilege	756	msdcsc.exe
Token: SeUndockPrivilege	756	msdcsc.exe
Token: SeManageVolumePrivilege	756	msdcsc.exe
Token: SeImpersonatePrivilege	756	msdcsc.exe
Token: SeCreateGlobalPrivilege	756	msdcsc.exe
Token: 33	756	msdcsc.exe
Token: 34	756	msdcsc.exe
Token: 35	756	msdcsc.exe
Token: 36	756	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
756	msdcsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 2340	3096	mysqlconf.exe	77
PID 3096 wrote to memory of 2340	3096	mysqlconf.exe	77
PID 3096 wrote to memory of 2340	3096	mysqlconf.exe	77
PID 3096 wrote to memory of 3932	3096	mysqlconf.exe	79
PID 3096 wrote to memory of 3932	3096	mysqlconf.exe	79
PID 3096 wrote to memory of 3932	3096	mysqlconf.exe	79
PID 2340 wrote to memory of 124	2340	cmd.exe	81
PID 2340 wrote to memory of 124	2340	cmd.exe	81
PID 2340 wrote to memory of 124	2340	cmd.exe	81
PID 3932 wrote to memory of 4916	3932	cmd.exe	82
PID 3932 wrote to memory of 4916	3932	cmd.exe	82
PID 3932 wrote to memory of 4916	3932	cmd.exe	82
PID 3096 wrote to memory of 756	3096	mysqlconf.exe	83
PID 3096 wrote to memory of 756	3096	mysqlconf.exe	83
PID 3096 wrote to memory of 756	3096	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\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
124	attrib.exe
4916	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:3096
- 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:2340
- - 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:124
- 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:3932
- - 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:4916
- 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:756

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