Analysis Overview
SHA256
7a1cb678e79d27382387cd8df1b5f6f36c7d4b45b0151f608b125d226f6f16dc
Threat Level: Known bad
The file cf8783d1c9bd6b15618c6de26308703b was found to be: Known bad.
Malicious Activity Summary
Oski
Suspicious use of SetThreadContext
Program crash
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-03-17 01:01
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-17 01:01
Reported
2024-03-17 01:04
Platform
win7-20240221-en
Max time kernel
120s
Max time network
124s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2152 set thread context of 2628 | 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\cf8783d1c9bd6b15618c6de26308703b.ps1
C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 500
Network
Files
memory/2152-5-0x000007FEF55A0000-0x000007FEF5F3D000-memory.dmp
memory/2152-4-0x000000001B420000-0x000000001B702000-memory.dmp
memory/2152-7-0x0000000001ED0000-0x0000000001ED8000-memory.dmp
memory/2152-6-0x0000000002300000-0x0000000002380000-memory.dmp
memory/2152-8-0x000007FEF55A0000-0x000007FEF5F3D000-memory.dmp
memory/2152-9-0x0000000002300000-0x0000000002380000-memory.dmp
memory/2152-10-0x0000000002300000-0x0000000002380000-memory.dmp
memory/2152-11-0x0000000002300000-0x0000000002380000-memory.dmp
memory/2152-12-0x0000000002630000-0x000000000263A000-memory.dmp
memory/2628-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2628-23-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-25-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2152-26-0x000007FEF55A0000-0x000007FEF5F3D000-memory.dmp
memory/2628-27-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2628-29-0x0000000000400000-0x0000000000438000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-17 01:01
Reported
2024-03-17 01:04
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Oski
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4208 set thread context of 5044 | 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\cf8783d1c9bd6b15618c6de26308703b.ps1
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5044 -ip 5044
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 1100
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| 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 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.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 | 10.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zvqpzxwn.hg4.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4208-5-0x000002B7DD570000-0x000002B7DD592000-memory.dmp
memory/4208-10-0x00007FFDAD880000-0x00007FFDAE341000-memory.dmp
memory/4208-11-0x000002B7DD540000-0x000002B7DD550000-memory.dmp
memory/4208-12-0x000002B7DD4F0000-0x000002B7DD4FA000-memory.dmp
memory/5044-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5044-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4208-17-0x00007FFDAD880000-0x00007FFDAE341000-memory.dmp
memory/5044-18-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5044-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5044-22-0x0000000000400000-0x0000000000438000-memory.dmp