Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
22-12-2023 16:30
Static task
static1
Behavioral task
behavioral1
Sample
f1a8247a688ebcb34d728f27ff8489dd.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
f1a8247a688ebcb34d728f27ff8489dd.ps1
Resource
win10v2004-20231215-en
General
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Target
f1a8247a688ebcb34d728f27ff8489dd.ps1
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Size
421KB
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MD5
f1a8247a688ebcb34d728f27ff8489dd
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SHA1
33857481b9c0807642983896744082620efc0de7
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SHA256
c74dd60489c92b69bd23792a9a2fc5bd963de6781993a66e9b519d6317c93df2
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SHA512
35aee40dab7f1ec7ef5ba79feb70886518f899c8a5c2662e6e896e9c45099acf2593b9a14595bdac2132eb6d4be840b8a72176a138fe8766a555a1db9266ed0c
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64bL68:q3c
Malware Config
Extracted
oski
/103.114.107.28/l38/
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 2080 set thread context of 2852 2080 powershell.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process 2800 2852 WerFault.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepid process 2080 powershell.exe 2080 powershell.exe 2080 powershell.exe 2080 powershell.exe 2080 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2080 powershell.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
powershell.exeMSBuild.exedescription pid process target process PID 2080 wrote to memory of 2292 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2292 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2292 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2292 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2836 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2836 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2836 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2836 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2080 wrote to memory of 2852 2080 powershell.exe MSBuild.exe PID 2852 wrote to memory of 2800 2852 MSBuild.exe WerFault.exe PID 2852 wrote to memory of 2800 2852 MSBuild.exe WerFault.exe PID 2852 wrote to memory of 2800 2852 MSBuild.exe WerFault.exe PID 2852 wrote to memory of 2800 2852 MSBuild.exe WerFault.exe
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\f1a8247a688ebcb34d728f27ff8489dd.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"{path}"2⤵
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"{path}"2⤵PID:2836
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"{path}"2⤵PID:2292
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 4961⤵
- Program crash
PID:2800