Analysis Overview
SHA256
902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e
Threat Level: Known bad
The file 902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.bin was found to be: Known bad.
Malicious Activity Summary
44caliber family
44Caliber
Suspicious use of NtCreateProcessExOtherParentProcess
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Looks up external IP address via web service
Program crash
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Enumerates system info in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-03-03 17:38
Signatures
44caliber family
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-01 18:12
Reported
2022-03-01 18:15
Platform
win7-20220223-en
Max time kernel
4294178s
Max time network
120s
Command Line
Signatures
44Caliber
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\WerFault.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1152 wrote to memory of 1116 | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | C:\Windows\system32\WerFault.exe |
| PID 1152 wrote to memory of 1116 | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | C:\Windows\system32\WerFault.exe |
| PID 1152 wrote to memory of 1116 | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe
"C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1152 -s 812
Network
Files
memory/1152-54-0x0000000000AE0000-0x0000000000B32000-memory.dmp
memory/1152-55-0x000007FEF5543000-0x000007FEF5544000-memory.dmp
memory/1116-56-0x000007FEFBCB1000-0x000007FEFBCB3000-memory.dmp
memory/1116-58-0x0000000001C20000-0x0000000001C21000-memory.dmp
memory/1152-57-0x000000001B020000-0x000000001B022000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-03-01 18:12
Reported
2022-03-01 18:15
Platform
win10v2004-en-20220113
Max time kernel
90s
Max time network
155s
Command Line
Signatures
44Caliber
Suspicious use of NtCreateProcessExOtherParentProcess
| Description | Indicator | Process | Target |
| PID 2776 created 1516 | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe |
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | freegeoip.app | N/A | N/A |
| N/A | freegeoip.app | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\system32\WerFault.exe | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Windows\system32\WerFault.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\system32\WerFault.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Windows\system32\WerFault.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Windows\system32\WerFault.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2776 wrote to memory of 1516 | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe |
| PID 2776 wrote to memory of 1516 | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe
"C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 188 -p 1516 -ip 1516
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1516 -s 1544
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | freegeoip.app | udp |
| US | 172.67.188.154:443 | freegeoip.app | tcp |
| US | 52.109.12.18:443 | tcp |
Files
memory/1516-130-0x0000000000EB0000-0x0000000000F02000-memory.dmp
memory/1516-131-0x00007FFC2C5F3000-0x00007FFC2C5F5000-memory.dmp
memory/1516-132-0x000000001C750000-0x000000001C752000-memory.dmp