Analysis Overview
SHA256
425e0a263cf872e96f3f9cc40215268b94148054577c3aa238af64333d489f4e
Threat Level: Known bad
The file 71bfac3bfe6334641627a8684d3fe6ee was found to be: Known bad.
Malicious Activity Summary
Oski
Suspicious use of SetThreadContext
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-01-24 08:27
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-24 08:27
Reported
2024-01-24 08:30
Platform
win7-20231129-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2548 set thread context of 2824 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\71bfac3bfe6334641627a8684d3fe6ee.ps1
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
Network
| Country | Destination | Domain | Proto |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp |
Files
memory/2548-5-0x000007FEF5BF0000-0x000007FEF658D000-memory.dmp
memory/2548-4-0x000000001B770000-0x000000001BA52000-memory.dmp
memory/2548-7-0x0000000002E40000-0x0000000002EC0000-memory.dmp
memory/2548-6-0x0000000002860000-0x0000000002868000-memory.dmp
memory/2548-9-0x0000000002E40000-0x0000000002EC0000-memory.dmp
memory/2548-10-0x0000000002E40000-0x0000000002EC0000-memory.dmp
memory/2548-8-0x000007FEF5BF0000-0x000007FEF658D000-memory.dmp
memory/2548-11-0x0000000002E40000-0x0000000002EC0000-memory.dmp
memory/2548-12-0x0000000002CF0000-0x0000000002CF8000-memory.dmp
memory/2548-22-0x000007FEF5BF0000-0x000007FEF658D000-memory.dmp
memory/2824-23-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2824-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2824-24-0x0000000000400000-0x0000000000438000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-24 08:27
Reported
2024-01-24 08:30
Platform
win10v2004-20231215-en
Max time kernel
137s
Max time network
162s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 5020 set thread context of 4600 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\71bfac3bfe6334641627a8684d3fe6ee.ps1
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| VN | 103.99.1.60:80 | tcp | |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| VN | 103.99.1.60:80 | tcp | |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| VN | 103.99.1.60:80 | tcp | |
| US | 8.8.8.8:53 | 187.178.17.96.in-addr.arpa | udp |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| VN | 103.99.1.60:80 | tcp | |
| US | 8.8.8.8:53 | 169.117.168.52.in-addr.arpa | udp |
| VN | 103.99.1.60:80 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dtdkof4h.fjw.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/5020-9-0x0000013CA9140000-0x0000013CA9162000-memory.dmp
memory/5020-10-0x00007FFEBD1F0000-0x00007FFEBDCB1000-memory.dmp
memory/5020-11-0x0000013C8E990000-0x0000013C8E9A0000-memory.dmp
memory/5020-12-0x0000013C8E990000-0x0000013C8E9A0000-memory.dmp
memory/5020-13-0x0000013C8E990000-0x0000013C8E9A0000-memory.dmp
memory/5020-14-0x0000013CA9130000-0x0000013CA9138000-memory.dmp
memory/4600-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5020-18-0x00007FFEBD1F0000-0x00007FFEBDCB1000-memory.dmp
memory/4600-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4600-20-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4600-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4600-22-0x0000000000400000-0x0000000000438000-memory.dmp