Analysis Overview
SHA256
7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf
Threat Level: Known bad
The file 7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf was found to be: Known bad.
Malicious Activity Summary
NetWire RAT payload
Netwire family
Suspicious use of NtCreateProcessExOtherParentProcess
Drops file in Windows directory
Program crash
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-17 00:17
Signatures
NetWire RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Netwire family
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-17 00:17
Reported
2022-02-17 00:25
Platform
win7-en-20211208
Max time kernel
117s
Max time network
131s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1912 wrote to memory of 864 | N/A | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1912 wrote to memory of 864 | N/A | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1912 wrote to memory of 864 | N/A | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1912 wrote to memory of 864 | N/A | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe
"C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 116
Network
Files
memory/1912-54-0x0000000075761000-0x0000000075763000-memory.dmp
memory/864-56-0x0000000000200000-0x0000000000201000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-17 00:17
Reported
2022-02-17 00:25
Platform
win10v2004-en-20220113
Max time kernel
118s
Max time network
169s
Command Line
Signatures
Suspicious use of NtCreateProcessExOtherParentProcess
| Description | Indicator | Process | Target |
| PID 4716 created 4560 | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe |
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 |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Windows\SysWOW64\WerFault.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4716 wrote to memory of 4560 | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe |
| PID 4716 wrote to memory of 4560 | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe
"C:\Users\Admin\AppData\Local\Temp\7d5b03cfa2895e6869b990ca5857713d8387e50e7301d896ca82579e886a92cf.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4560 -ip 4560
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 348
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 | crl4.digicert.com | udp |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
Files
memory/1568-130-0x000001DA20F60000-0x000001DA20F70000-memory.dmp
memory/1568-131-0x000001DA21520000-0x000001DA21530000-memory.dmp
memory/1568-132-0x000001DA23BA0000-0x000001DA23BA4000-memory.dmp