Analysis Overview
SHA256
f5abfba489bfcef9819f0ca20cd54efc779d6091f6462b6083c363636739f41b
Threat Level: Known bad
The file 8c7c82469de5aacc1025699b79718847 was found to be: Known bad.
Malicious Activity Summary
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
Unsigned PE
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-02-03 13:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-03 13:50
Reported
2024-02-03 13:52
Platform
win7-20231129-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1044 set thread context of 2476 | N/A | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
"C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
"C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 112
Network
Files
memory/1044-0-0x0000000001380000-0x0000000001480000-memory.dmp
memory/1044-1-0x0000000074990000-0x000000007507E000-memory.dmp
memory/1044-2-0x0000000000AB0000-0x0000000000AF0000-memory.dmp
memory/1044-3-0x0000000000440000-0x0000000000458000-memory.dmp
memory/1044-4-0x0000000074990000-0x000000007507E000-memory.dmp
memory/1044-5-0x0000000000AB0000-0x0000000000AF0000-memory.dmp
memory/1044-6-0x0000000005790000-0x0000000005830000-memory.dmp
memory/1044-7-0x0000000000A60000-0x0000000000A98000-memory.dmp
memory/2476-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2476-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2476-10-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2476-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2476-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2476-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2476-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2476-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1044-20-0x0000000074990000-0x000000007507E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-03 13:50
Reported
2024-02-03 13:52
Platform
win10v2004-20231222-en
Max time kernel
92s
Max time network
148s
Command Line
Signatures
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4756 set thread context of 4872 | N/A | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
"C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
"C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe
"C:\Users\Admin\AppData\Local\Temp\8c7c82469de5aacc1025699b79718847.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 4872 -ip 4872
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 1284
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | kckark.xyz | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
Files
memory/4756-0-0x00000000009E0000-0x0000000000AE0000-memory.dmp
memory/4756-1-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4756-2-0x0000000005BA0000-0x0000000006144000-memory.dmp
memory/4756-3-0x00000000054E0000-0x0000000005572000-memory.dmp
memory/4756-4-0x00000000055F0000-0x000000000568C000-memory.dmp
memory/4756-5-0x0000000005840000-0x0000000005850000-memory.dmp
memory/4756-6-0x00000000054C0000-0x00000000054CA000-memory.dmp
memory/4756-7-0x00000000056F0000-0x0000000005708000-memory.dmp
memory/4756-8-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4756-9-0x0000000005840000-0x0000000005850000-memory.dmp
memory/4756-10-0x0000000006EE0000-0x0000000006F80000-memory.dmp
memory/4756-11-0x0000000006B60000-0x0000000006B98000-memory.dmp
memory/4872-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4872-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4872-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4756-17-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4872-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4872-20-0x0000000000400000-0x0000000000438000-memory.dmp