Analysis
-
max time kernel
151s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
22-12-2023 04:25
Static task
static1
Behavioral task
behavioral1
Sample
636e799e0d2695f6d1b4fc1c32f18b77.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
636e799e0d2695f6d1b4fc1c32f18b77.ps1
Resource
win10v2004-20231215-en
General
-
Target
636e799e0d2695f6d1b4fc1c32f18b77.ps1
-
Size
656KB
-
MD5
636e799e0d2695f6d1b4fc1c32f18b77
-
SHA1
2796d78bb15c3a037eb018df31d70700be8dba41
-
SHA256
cf25db6c63cc07611931c4c4468c4e15af04130d4534caa53f59a43f863a02d1
-
SHA512
fcdb45b2ad3e83f0a406650636016ffde1b60f7a7986e7526b2de168a85b13fe5ab0401a9f3fa4bbe13e074992116583d0744e704c251f02fa0b8bd6a5adc634
-
SSDEEP
12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64N8TVkc5A+:g33Tmr+
Malware Config
Extracted
oski
/103.114.107.28/l36/
Signatures
-
Oski
Oski is an infostealer targeting browser data, crypto wallets.
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.exedescription pid process target process PID 3520 set thread context of 4088 3520 powershell.exe aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2952 4088 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3520 powershell.exe 3520 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3520 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe PID 3520 wrote to memory of 4088 3520 powershell.exe aspnet_compiler.exe
Processes
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\636e799e0d2695f6d1b4fc1c32f18b77.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3520 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:4088
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4088 -s 11083⤵
- Program crash
PID:2952
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4088 -ip 40881⤵PID:3104
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82