darkcomet | 1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe

Executes dropped EXE 3 IoCs

pid	Process
1192	Soundcrd.exe
4680	Soundcrd.exe
2624	Soundcrd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mcrosoftt = "C:\\Users\\Admin\\AppData\\Roaming\\Soundcrd.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1192 set thread context of 4680	1192	Soundcrd.exe	95
PID 1192 set thread context of 2624	1192	Soundcrd.exe	96

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4196-1-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral2/files/0x0008000000023e21-16.dat	upx
behavioral2/memory/4196-28-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral2/memory/4680-31-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-37-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2624-38-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/4680-40-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-39-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2624-43-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/2624-45-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/4680-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/1192-51-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral2/memory/4680-49-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2624-53-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/4680-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4680-79-0x0000000000400000-0x00000000004B5000-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 7 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	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1328	MicrosoftEdgeUpdate.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Soundcrd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Soundcrd.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4680	Soundcrd.exe
Token: SeSecurityPrivilege	4680	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	4680	Soundcrd.exe
Token: SeLoadDriverPrivilege	4680	Soundcrd.exe
Token: SeSystemProfilePrivilege	4680	Soundcrd.exe
Token: SeSystemtimePrivilege	4680	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	4680	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	4680	Soundcrd.exe
Token: SeCreatePagefilePrivilege	4680	Soundcrd.exe
Token: SeBackupPrivilege	4680	Soundcrd.exe
Token: SeRestorePrivilege	4680	Soundcrd.exe
Token: SeShutdownPrivilege	4680	Soundcrd.exe
Token: SeDebugPrivilege	4680	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	4680	Soundcrd.exe
Token: SeChangeNotifyPrivilege	4680	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	4680	Soundcrd.exe
Token: SeUndockPrivilege	4680	Soundcrd.exe
Token: SeManageVolumePrivilege	4680	Soundcrd.exe
Token: SeImpersonatePrivilege	4680	Soundcrd.exe
Token: SeCreateGlobalPrivilege	4680	Soundcrd.exe
Token: 33	4680	Soundcrd.exe
Token: 34	4680	Soundcrd.exe
Token: 35	4680	Soundcrd.exe
Token: 36	4680	Soundcrd.exe
Token: SeDebugPrivilege	2624	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe
1192	Soundcrd.exe
2624	Soundcrd.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 1028	4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe	88
PID 4196 wrote to memory of 1028	4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe	88
PID 4196 wrote to memory of 1028	4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe	88
PID 1028 wrote to memory of 3332	1028	cmd.exe	92
PID 1028 wrote to memory of 3332	1028	cmd.exe	92
PID 1028 wrote to memory of 3332	1028	cmd.exe	92
PID 4196 wrote to memory of 1192	4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe	94
PID 4196 wrote to memory of 1192	4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe	94
PID 4196 wrote to memory of 1192	4196	1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe	94
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 4680	1192	Soundcrd.exe	95
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96
PID 1192 wrote to memory of 2624	1192	Soundcrd.exe	96

C:\Users\Admin\AppData\Local\Temp\1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe
"C:\Users\Admin\AppData\Local\Temp\1976bc1a65844dc3a8b1e22c5fd4956db83b3a17a2d1ddbc0147bc5a40e76b74.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\dsuPh.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1028
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoftt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Soundcrd.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:3332
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:4680
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2624

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI5IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjM1NDYwNzQxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1328

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

4

System Information Discovery

5

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery