Analysis
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max time kernel
149s -
max time network
143s -
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 01:02
Static task
static1
Behavioral task
behavioral1
Sample
3f612a7d13131add2c7480a8f4afc2e2.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3f612a7d13131add2c7480a8f4afc2e2.ps1
Resource
win10v2004-20231215-en
General
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Target
3f612a7d13131add2c7480a8f4afc2e2.ps1
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Size
421KB
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MD5
3f612a7d13131add2c7480a8f4afc2e2
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SHA1
002ef70c9716875d10ae15d571172ef55b9a9058
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SHA256
9c91870abd6826a55a3091588a4dd1a06f76517ff5a59905a1247a169ba33581
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SHA512
1abfbab969598f722e900aa19b9fd6f95b21cfb07110aa978a08dbcf0d639dea1b630e2673cb1e7abeda1c3db0f1f6f0ad60eefd2f513a064e1be1a682d19905
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64EL68:q3v
Malware Config
Extracted
oski
/103.114.107.28/l2121/
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 208 set thread context of 4668 208 powershell.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1836 4668 WerFault.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepid process 208 powershell.exe 208 powershell.exe 208 powershell.exe 208 powershell.exe 208 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 208 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
powershell.exedescription pid process target process PID 208 wrote to memory of 2068 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 2068 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 2068 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 powershell.exe MSBuild.exe PID 208 wrote to memory of 4668 208 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\3f612a7d13131add2c7480a8f4afc2e2.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:4668
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 11043⤵
- Program crash
PID:1836 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:2068
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4668 -ip 46681⤵PID:3940
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82