Analysis Overview
SHA256
46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607
Threat Level: Known bad
The file 46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607 was found to be: Known bad.
Malicious Activity Summary
CryptBot
Reads user/profile data of web browsers
Deletes itself
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-12 07:17
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-12 07:17
Reported
2022-02-12 07:20
Platform
win7-en-20211208
Max time kernel
120s
Max time network
130s
Command Line
Signatures
CryptBot
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.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:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe
"C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\aGhLZMiSQ & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe"
C:\Windows\SysWOW64\timeout.exe
timeout 4
Network
Files
memory/1888-54-0x0000000076071000-0x0000000076073000-memory.dmp
memory/1888-56-0x0000000000220000-0x0000000000221000-memory.dmp
memory/1888-55-0x0000000000424000-0x0000000000426000-memory.dmp
memory/1888-57-0x0000000000350000-0x0000000000398000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-12 07:17
Reported
2022-02-12 07:20
Platform
win10v2004-en-20220113
Max time kernel
160s
Max time network
174s
Command Line
Signatures
CryptBot
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\WindowsUpdate.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\DataStore.edb | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\ReportingEvents.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\Logs\CBS\CBS.log | C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe | N/A |
| File opened for modification | C:\Windows\WinSxS\pending.xml | C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.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:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Processes
C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe
"C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe"
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| AU | 104.46.162.224:443 | tcp | |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
| US | 8.8.8.8:53 | hevpxm41.top | udp |
Files
memory/4484-131-0x0000000000990000-0x0000000000991000-memory.dmp
memory/4484-130-0x0000000000424000-0x0000000000426000-memory.dmp
memory/4484-132-0x0000000000A30000-0x0000000000A78000-memory.dmp
memory/836-133-0x0000024A88930000-0x0000024A88940000-memory.dmp
memory/836-134-0x0000024A88990000-0x0000024A889A0000-memory.dmp
memory/836-135-0x0000024A8B6B0000-0x0000024A8B6B4000-memory.dmp