Analysis Overview
SHA256
ad3b313a244216f2b1351bae0e8c7e62292c4fe657670a6a604619673236508f
Threat Level: Known bad
The file b3a18b4fa0d0ea832e9807e265669977 was found to be: Known bad.
Malicious Activity Summary
Oski
Suspicious use of SetThreadContext
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-03-05 03:14
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-05 03:14
Reported
2024-03-05 03:17
Platform
win7-20240221-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2864 set thread context of 2736 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| 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\b3a18b4fa0d0ea832e9807e265669977.ps1
C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 500
Network
Files
memory/2864-4-0x000000001B5F0000-0x000000001B8D2000-memory.dmp
memory/2864-6-0x0000000002340000-0x0000000002348000-memory.dmp
memory/2864-5-0x000007FEF5C10000-0x000007FEF65AD000-memory.dmp
memory/2864-7-0x0000000002970000-0x00000000029F0000-memory.dmp
memory/2864-9-0x0000000002970000-0x00000000029F0000-memory.dmp
memory/2864-8-0x000007FEF5C10000-0x000007FEF65AD000-memory.dmp
memory/2864-10-0x0000000002970000-0x00000000029F0000-memory.dmp
memory/2864-11-0x0000000002A90000-0x0000000002A9A000-memory.dmp
memory/2736-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2736-18-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2864-20-0x000007FEF5C10000-0x000007FEF65AD000-memory.dmp
memory/2736-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2736-24-0x0000000000400000-0x0000000000438000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-05 03:14
Reported
2024-03-05 03:17
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3588 set thread context of 4720 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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\b3a18b4fa0d0ea832e9807e265669977.ps1
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4720 -ip 4720
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 1104
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
Files
memory/3588-5-0x0000023771E80000-0x0000023771EA2000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cktyt043.ami.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/3588-10-0x00007FFD292A0000-0x00007FFD29D61000-memory.dmp
memory/3588-11-0x0000023771ED0000-0x0000023771EE0000-memory.dmp
memory/3588-12-0x0000023771EB0000-0x0000023771EBA000-memory.dmp
memory/4720-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4720-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4720-18-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3588-17-0x00007FFD292A0000-0x00007FFD29D61000-memory.dmp
memory/4720-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4720-22-0x0000000000400000-0x0000000000438000-memory.dmp