Analysis Overview
SHA256
9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759
Threat Level: Known bad
The file 9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759 was found to be: Known bad.
Malicious Activity Summary
CryptBot
Deletes itself
Reads user/profile data of web browsers
Checks installed software on the system
Accesses cryptocurrency files/wallets, possible credential harvesting
Drops file in Windows directory
Enumerates physical storage devices
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-12 01:52
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-12 01:52
Reported
2022-02-12 01:55
Platform
win7-en-20211208
Max time kernel
118s
Max time network
125s
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\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.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\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe
"C:\Users\Admin\AppData\Local\Temp\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\yVtcBFIMZb & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe"
C:\Windows\SysWOW64\timeout.exe
timeout 4
Network
Files
memory/1516-54-0x0000000075471000-0x0000000075473000-memory.dmp
memory/1516-55-0x00000000002A0000-0x00000000002C5000-memory.dmp
memory/1516-56-0x0000000000310000-0x0000000000355000-memory.dmp
memory/1516-57-0x0000000000400000-0x0000000000448000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-12 01:52
Reported
2022-02-12 01:55
Platform
win10v2004-en-20220113
Max time kernel
151s
Max time network
158s
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\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 |
| 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 |
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\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Processes
C:\Users\Admin\AppData\Local\Temp\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.exe
"C:\Users\Admin\AppData\Local\Temp\9e49a8f52736cb6b803f257a124cb6c86ab7d3eb8219e2a7a8df5820dc91b759.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 | 72.21.91.29:80 | tcp | |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 20.42.65.89:443 | tcp | |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
| US | 8.8.8.8:53 | sezqks52.top | udp |
Files
memory/2792-130-0x0000000000990000-0x00000000009B5000-memory.dmp
memory/2792-131-0x0000000000D00000-0x0000000000D45000-memory.dmp
memory/2792-132-0x0000000000400000-0x0000000000448000-memory.dmp
memory/4288-133-0x00000265B0960000-0x00000265B0970000-memory.dmp
memory/4288-134-0x00000265B1020000-0x00000265B1030000-memory.dmp
memory/4288-135-0x00000265B36E0000-0x00000265B36E4000-memory.dmp