darkcomet | 6784118149ec8f2d9fdae8907445a4c944c58b8c93bff924d4726bf1f10a7cd2

System Information Discovery

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

Executes dropped EXE 1 IoCs

pid	Process
3656	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3656-5-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-8-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-12-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-10-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-16-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-18-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-17-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-14-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-13-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-20-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-21-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-23-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-24-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-25-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-26-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-27-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-28-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-29-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-30-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-31-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-32-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-33-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3656-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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
2152	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	vbc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vbc.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	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3656	vbc.exe
Token: SeSecurityPrivilege	3656	vbc.exe
Token: SeTakeOwnershipPrivilege	3656	vbc.exe
Token: SeLoadDriverPrivilege	3656	vbc.exe
Token: SeSystemProfilePrivilege	3656	vbc.exe
Token: SeSystemtimePrivilege	3656	vbc.exe
Token: SeProfSingleProcessPrivilege	3656	vbc.exe
Token: SeIncBasePriorityPrivilege	3656	vbc.exe
Token: SeCreatePagefilePrivilege	3656	vbc.exe
Token: SeBackupPrivilege	3656	vbc.exe
Token: SeRestorePrivilege	3656	vbc.exe
Token: SeShutdownPrivilege	3656	vbc.exe
Token: SeDebugPrivilege	3656	vbc.exe
Token: SeSystemEnvironmentPrivilege	3656	vbc.exe
Token: SeChangeNotifyPrivilege	3656	vbc.exe
Token: SeRemoteShutdownPrivilege	3656	vbc.exe
Token: SeUndockPrivilege	3656	vbc.exe
Token: SeManageVolumePrivilege	3656	vbc.exe
Token: SeImpersonatePrivilege	3656	vbc.exe
Token: SeCreateGlobalPrivilege	3656	vbc.exe
Token: 33	3656	vbc.exe
Token: 34	3656	vbc.exe
Token: 35	3656	vbc.exe
Token: 36	3656	vbc.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87
PID 2112 wrote to memory of 3656	2112	JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba43500c74e4f71797f906e4e643a916.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - 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:3656

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTg1NzA4MTI5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery