Analysis
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max time kernel
139s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
21-12-2023 21:48
Static task
static1
Behavioral task
behavioral1
Sample
0533575076d7185ba435f3d260e8b3e4.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
0533575076d7185ba435f3d260e8b3e4.ps1
Resource
win10v2004-20231215-en
General
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Target
0533575076d7185ba435f3d260e8b3e4.ps1
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Size
485KB
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MD5
0533575076d7185ba435f3d260e8b3e4
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SHA1
ab887dd690c6f1880cc1c01f44296c747b36e4b0
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SHA256
3773c12491a4d8462144e592bd3a9746186ca41928b2443959c548cbccb45b37
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SHA512
8e472035f8d3c7740a34db8bfffac28494c87221e3d398b93cbccb6113b01c51fd964571906ee044d61a31df167727f3238b596da9f8dcd2b032bbae4a4cdfa8
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64kigu:q3Ru
Malware Config
Extracted
oski
/103.114.107.28/l1212/
Signatures
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Oski
Oski is an infostealer targeting browser data, crypto wallets.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.exedescription pid process target process PID 4804 set thread context of 5096 4804 powershell.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1944 5096 WerFault.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exepid process 4804 powershell.exe 4804 powershell.exe 4804 powershell.exe 4804 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4804 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
powershell.exedescription pid process target process PID 4804 wrote to memory of 4164 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 4164 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 4164 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe PID 4804 wrote to memory of 5096 4804 powershell.exe MSBuild.exe
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\0533575076d7185ba435f3d260e8b3e4.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe#cmd2⤵PID:4164
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe#cmd2⤵PID:5096
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 11203⤵
- Program crash
PID:1944
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5096 -ip 50961⤵PID:3664
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82