Analysis Overview
SHA256
22b54519817383d7b5ecc3343c7c46cb60636faecd864c6452db2553bc70f2fb
Threat Level: Known bad
The file 979d1d97ef97c7ae5737a88e87757ec4.7z was found to be: Known bad.
Malicious Activity Summary
CryptBot
CryptBot Payload
Suspicious use of NtCreateProcessExOtherParentProcess
Sets service image path in registry
Program crash
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Enumerates system info in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-01-19 21:55
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-01-19 21:55
Reported
2022-01-19 21:58
Platform
win7-en-20211208
Max time kernel
118s
Max time network
120s
Command Line
Signatures
CryptBot
CryptBot Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe
"C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe"
Network
Files
memory/1320-55-0x00000000005F0000-0x0000000000689000-memory.dmp
memory/1320-56-0x0000000074B21000-0x0000000074B23000-memory.dmp
memory/1320-57-0x00000000004F0000-0x00000000005D1000-memory.dmp
memory/1320-58-0x0000000000400000-0x00000000004E5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-01-19 21:55
Reported
2022-01-19 21:58
Platform
win10v2004-en-20220112
Max time kernel
149s
Max time network
151s
Command Line
Signatures
CryptBot
CryptBot Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of NtCreateProcessExOtherParentProcess
| Description | Indicator | Process | Target |
| PID 3016 created 3824 | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe |
Sets service image path in registry
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Windows\SysWOW64\WerFault.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Windows\SysWOW64\WerFault.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople | C:\Windows\System32\WaaSMedicAgent.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeRestorePrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3016 wrote to memory of 3824 | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe |
| PID 3016 wrote to memory of 3824 | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe
"C:\Users\Admin\AppData\Local\Temp\979d1d97ef97c7ae5737a88e87757ec4.exe"
C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 5951738b1bb9fd3bc22d0ff51d165a36 u9eDz27FjEKMakcCKY+AmQ.0.1.0.0.0
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3824 -ip 3824
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 500
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k wusvcs -p
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| NL | 20.73.194.208:443 | settings-win.data.microsoft.com | tcp |
| NL | 20.73.194.208:443 | settings-win.data.microsoft.com | tcp |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| US | 8.8.8.8:53 | api.msn.com | udp |
| US | 204.79.197.203:443 | api.msn.com | tcp |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| NL | 20.73.194.208:443 | settings-win.data.microsoft.com | tcp |
| NL | 20.73.194.208:443 | settings-win.data.microsoft.com | tcp |
Files
memory/3824-130-0x0000000000710000-0x00000000007A6000-memory.dmp
memory/3824-131-0x00000000022B0000-0x0000000002391000-memory.dmp
memory/3824-132-0x0000000000400000-0x00000000004E5000-memory.dmp