Analysis Overview
SHA256
52338add561f1e396b0f8377e77bae2a05bcb8d7cc19548dbf9ff8cf0b57cc1f
Threat Level: Known bad
The file 52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe was found to be: Known bad.
Malicious Activity Summary
Oski family
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Reads user/profile data of web browsers
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-20 16:45
Signatures
Oski family
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-20 16:45
Reported
2022-04-20 16:47
Platform
win7-20220414-en
Max time kernel
43s
Max time network
78s
Command Line
Signatures
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Reads user/profile data of web browsers
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1992 wrote to memory of 1340 | N/A | C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1992 wrote to memory of 1340 | N/A | C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1992 wrote to memory of 1340 | N/A | C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1992 wrote to memory of 1340 | N/A | C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe
"C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 780
Network
| Country | Destination | Domain | Proto |
| LT | 62.77.159.212:80 | 62.77.159.212 | tcp |
Files
memory/1992-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp
memory/1340-55-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-20 16:45
Reported
2022-04-20 16:47
Platform
win10v2004-20220414-en
Max time kernel
132s
Max time network
156s
Command Line
Signatures
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Reads user/profile data of web browsers
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe
"C:\Users\Admin\AppData\Local\Temp\52338ADD561F1E396B0F8377E77BAE2A05BCB8D7CC195.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4760 -ip 4760
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 1300
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 8.253.208.112:80 | tcp | |
| LT | 62.77.159.212:80 | 62.77.159.212 | tcp |
| FR | 2.18.109.224:443 | tcp | |
| US | 104.18.24.243:80 | tcp | |
| IE | 13.69.239.74:443 | tcp | |
| US | 8.253.208.112:80 | tcp | |
| US | 8.253.208.112:80 | tcp | |
| US | 8.253.208.112:80 | tcp |