Analysis Overview
SHA256
bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec
Threat Level: Known bad
The file bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec was found to be: Known bad.
Malicious Activity Summary
CryptBot
Deletes itself
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
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-12 00:50
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-12 00:50
Reported
2022-02-12 00:53
Platform
win7-en-20211208
Max time kernel
122s
Max time network
127s
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 value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.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\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe
"C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\lChjuRVtG & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe"
C:\Windows\SysWOW64\timeout.exe
timeout 4
Network
Files
memory/1352-53-0x0000000000968000-0x000000000098E000-memory.dmp
memory/1352-54-0x0000000075CE1000-0x0000000075CE3000-memory.dmp
memory/1352-55-0x0000000000968000-0x000000000098E000-memory.dmp
memory/1352-56-0x0000000000220000-0x0000000000265000-memory.dmp
memory/1352-57-0x0000000000400000-0x0000000000448000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-12 00:50
Reported
2022-02-12 00:53
Platform
win10v2004-en-20220113
Max time kernel
149s
Max time network
154s
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\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 |
| File opened for modification | C:\Windows\WindowsUpdate.log | C:\Windows\system32\svchost.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\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Processes
C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.exe
"C:\Users\Admin\AppData\Local\Temp\bcafd3989097e0631a1dbb1fb996690c7c5240c81e6496184268a8f4f2a840ec.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 |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
| US | 8.8.8.8:53 | gomdhv42.top | udp |
Files
memory/4132-130-0x0000000000862000-0x0000000000887000-memory.dmp
memory/4132-131-0x0000000000862000-0x0000000000887000-memory.dmp
memory/4132-132-0x0000000000610000-0x0000000000655000-memory.dmp
memory/4132-133-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2240-134-0x000001DAB4A20000-0x000001DAB4A30000-memory.dmp
memory/2240-135-0x000001DAB4A80000-0x000001DAB4A90000-memory.dmp
memory/2240-136-0x000001DAB7150000-0x000001DAB7154000-memory.dmp