Analysis Overview
SHA256
d3b9ef895c0023f920b80cdc47303013ee118805dbe49d178a571aff1a23d039
Threat Level: Known bad
The file 3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8 was found to be: Known bad.
Malicious Activity Summary
CryptBot
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Themida packer
Deletes itself
Checks BIOS information in registry
Checks computer location settings
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-01-17 09:39
Signatures
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2022-01-17 09:39
Reported
2022-01-17 09:42
Platform
win7-en-20211208
Max time kernel
120s
Max time network
120s
Command Line
Signatures
CryptBot
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe
"C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\VdenQkXAOJBC & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe"
C:\Windows\SysWOW64\timeout.exe
timeout 4
Network
Files
memory/748-54-0x0000000074F01000-0x0000000074F03000-memory.dmp
memory/748-55-0x0000000000380000-0x0000000000A12000-memory.dmp
memory/748-56-0x0000000000380000-0x0000000000A12000-memory.dmp
memory/748-57-0x0000000000380000-0x0000000000A12000-memory.dmp
memory/748-58-0x0000000000380000-0x0000000000A12000-memory.dmp
memory/724-59-0x0000000000000000-mapping.dmp
memory/1344-60-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-01-17 09:39
Reported
2022-01-17 09:41
Platform
win10v2004-en-20220112
Max time kernel
4265070s
Max time network
148s
Command Line
Signatures
CryptBot
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\system32\MusNotification.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\system32\MusNotification.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\MusNotification.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\system32\MusNotification.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1436 wrote to memory of 1752 | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1436 wrote to memory of 1752 | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1436 wrote to memory of 1752 | N/A | C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1752 wrote to memory of 4084 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\timeout.exe |
| PID 1752 wrote to memory of 4084 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\timeout.exe |
| PID 1752 wrote to memory of 4084 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\timeout.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe
"C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\SQTCiWfvP & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe"
C:\Windows\SysWOW64\timeout.exe
timeout 4
C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | time.windows.com | udp |
| US | 8.8.8.8:53 | arc.msn.com | udp |
| US | 52.184.215.140:443 | arc.msn.com | tcp |
| US | 8.8.8.8:53 | slscr.update.microsoft.com | udp |
| IE | 20.54.89.106:443 | slscr.update.microsoft.com | tcp |
| US | 8.8.8.8:53 | fe3cr.delivery.mp.microsoft.com | udp |
| US | 8.8.8.8:53 | fe3cr.delivery.mp.microsoft.com | udp |
| US | 40.125.122.151:443 | fe3cr.delivery.mp.microsoft.com | tcp |
| NL | 20.101.57.9:123 | time.windows.com | udp |
| US | 8.8.8.8:53 | slscr.update.microsoft.com | udp |
| IE | 20.54.89.106:443 | slscr.update.microsoft.com | tcp |
| IE | 20.54.89.106:443 | slscr.update.microsoft.com | tcp |
| US | 8.8.8.8:53 | ris.api.iris.microsoft.com | udp |
| US | 52.252.42.28:443 | ris.api.iris.microsoft.com | tcp |
| US | 8.8.8.8:53 | img-prod-cms-rt-microsoft-com.akamaized.net | udp |
| FR | 2.22.147.112:443 | img-prod-cms-rt-microsoft-com.akamaized.net | tcp |
Files
memory/1436-130-0x0000000000940000-0x0000000000FD2000-memory.dmp
memory/1436-131-0x0000000000940000-0x0000000000FD2000-memory.dmp
memory/1436-132-0x0000000000940000-0x0000000000FD2000-memory.dmp
memory/1436-133-0x0000000000940000-0x0000000000FD2000-memory.dmp
memory/1752-134-0x0000000000000000-mapping.dmp
memory/4084-135-0x0000000000000000-mapping.dmp