Analysis
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max time kernel
136s -
max time network
152s -
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 13:11
Static task
static1
Behavioral task
behavioral1
Sample
9b2f171a482bb7a217bc5831a7dcbf1c.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
9b2f171a482bb7a217bc5831a7dcbf1c.ps1
Resource
win10v2004-20231215-en
General
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Target
9b2f171a482bb7a217bc5831a7dcbf1c.ps1
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Size
485KB
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MD5
9b2f171a482bb7a217bc5831a7dcbf1c
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SHA1
1ee718a4449be57fd88455a2de6150d6506057df
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SHA256
ad86961a4df9ed275fa5cbf709b6d394f992a531cf0762ff1de73ab832f91c5a
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SHA512
6427bd1d42780b24a8b49f487d94e986cb84dfe4abd7361876520bf6d779f2aff3e667edfb577f4315d2804f23d44569c368f18b5ccb06a62beb71cc8061d6c1
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64figu:q3wu
Malware Config
Extracted
oski
/103.114.107.28/l25/
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
description pid Process procid_target PID 2948 set thread context of 3820 2948 powershell.exe 90 -
Program crash 1 IoCs
pid pid_target Process procid_target 4620 3820 WerFault.exe 90 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2948 powershell.exe 2948 powershell.exe 2948 powershell.exe 2948 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2948 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2948 wrote to memory of 2500 2948 powershell.exe 89 PID 2948 wrote to memory of 2500 2948 powershell.exe 89 PID 2948 wrote to memory of 2500 2948 powershell.exe 89 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90 PID 2948 wrote to memory of 3820 2948 powershell.exe 90
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\9b2f171a482bb7a217bc5831a7dcbf1c.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2948 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe#cmd2⤵PID:2500
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe#cmd2⤵PID:3820
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 11003⤵
- Program crash
PID:4620
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3820 -ip 38201⤵PID:4004
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82