Analysis Overview
SHA256
046235b59fbc6d2c4ec3db0ae6ea10cb53d743c678ca9dca8b2a9d30c7fbb393
Threat Level: Known bad
The file 046235b59fbc6d2c4ec3db0ae6ea10cb53d743c678ca9dca8b2a9d30c7fbb393 was found to be: Known bad.
Malicious Activity Summary
Qakbot family
Drops file in Windows directory
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-02-13 22:36
Signatures
Qakbot family
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-13 22:36
Reported
2022-02-13 22:39
Platform
win7-en-20211208
Max time kernel
118s
Max time network
120s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1540 wrote to memory of 2032 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\046235b59fbc6d2c4ec3db0ae6ea10cb53d743c678ca9dca8b2a9d30c7fbb393.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\046235b59fbc6d2c4ec3db0ae6ea10cb53d743c678ca9dca8b2a9d30c7fbb393.dll,#1
Network
Files
memory/2032-54-0x0000000076731000-0x0000000076733000-memory.dmp
memory/2032-56-0x00000000000CC000-0x00000000000D7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-13 22:36
Reported
2022-02-13 22:39
Platform
win10v2004-en-20220113
Max time kernel
140s
Max time network
140s
Command Line
Signatures
Drops file in Windows directory
| Description | Indicator | Process | Target |
| 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 |
| 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 |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1316 wrote to memory of 1524 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1316 wrote to memory of 1524 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1316 wrote to memory of 1524 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\046235b59fbc6d2c4ec3db0ae6ea10cb53d743c678ca9dca8b2a9d30c7fbb393.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\046235b59fbc6d2c4ec3db0ae6ea10cb53d743c678ca9dca8b2a9d30c7fbb393.dll,#1
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 | 13.107.4.50:80 | tcp | |
| US | 13.107.4.50:80 | tcp |
Files
memory/4632-130-0x000001E06B560000-0x000001E06B570000-memory.dmp
memory/4632-131-0x000001E06BB20000-0x000001E06BB30000-memory.dmp
memory/4632-132-0x000001E06E1B0000-0x000001E06E1B4000-memory.dmp