Analysis Overview
SHA256
ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c
Threat Level: Known bad
The file ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Suspicious Office macro
Drops file in System32 directory
Drops file in Windows directory
Enumerates system info in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Runs regedit.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-01-30 01:41
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-01-30 01:41
Reported
2023-01-30 02:12
Platform
win10-20220901-en
Max time kernel
1664s
Max time network
1588s
Command Line
Signatures
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
| Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
| Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
| Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\taskschd.msc | C:\Windows\system32\mmc.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\rescache\_merged\4183903823\810424605.pri | C:\Windows\system32\taskmgr.exe | N/A |
| File created | C:\Windows\rescache\_merged\1601268389\3877292338.pri | C:\Windows\system32\taskmgr.exe | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Runs regedit.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\regedit.exe | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\regedit.exe | N/A |
| N/A | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\system32\mmc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: 35 | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\mmc.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\mmc.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c.xls"
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe ..\oxnv1.ooccxx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe ..\oxnv2.ooccxx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe ..\oxnv3.ooccxx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe ..\oxnv4.ooccxx
C:\Windows\regedit.exe
"C:\Windows\regedit.exe"
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k SDRSVC
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /0
C:\Windows\system32\mmc.exe
"C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | audioselec.com | udp |
| N/A | 190.171.104.142:443 | audioselec.com | tcp |
| N/A | 8.8.8.8:53 | geringer-muehle.de | udp |
| N/A | 92.204.55.107:443 | geringer-muehle.de | tcp |
| N/A | 8.8.8.8:53 | ocsp.starfieldtech.com | udp |
| N/A | 192.124.249.24:80 | ocsp.starfieldtech.com | tcp |
| N/A | 8.8.8.8:53 | intolove.co.uk | udp |
| N/A | 149.255.58.47:80 | intolove.co.uk | tcp |
| N/A | 8.8.8.8:53 | isc.net.ua | udp |
| N/A | 185.156.41.6:80 | isc.net.ua | tcp |
| N/A | 52.182.143.210:443 | tcp | |
| N/A | 87.248.202.1:80 | tcp |
Files
memory/4740-120-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
memory/4740-121-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
memory/4740-122-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
memory/4740-123-0x00007FF9D8990000-0x00007FF9D89A0000-memory.dmp
memory/4740-132-0x00007FF9D4ED0000-0x00007FF9D4EE0000-memory.dmp
memory/4740-133-0x00007FF9D4ED0000-0x00007FF9D4EE0000-memory.dmp
memory/4612-256-0x0000000000000000-mapping.dmp
memory/4808-259-0x0000000000000000-mapping.dmp
memory/3168-265-0x0000000000000000-mapping.dmp
memory/4064-266-0x0000000000000000-mapping.dmp
memory/428-472-0x00000000049A0000-0x00000000049B0000-memory.dmp
memory/428-474-0x00000000049A0000-0x00000000049B0000-memory.dmp