Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
16-01-2024 00:06
Static task
static1
Behavioral task
behavioral1
Sample
5e70c004a15f9c9dd298b95046feee7f.ps1
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
5e70c004a15f9c9dd298b95046feee7f.ps1
Resource
win10v2004-20231215-en
General
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Target
5e70c004a15f9c9dd298b95046feee7f.ps1
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Size
485KB
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MD5
5e70c004a15f9c9dd298b95046feee7f
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SHA1
fc990eadc3d9e92d62c2fb933e40def2c96900dd
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SHA256
a216b930fa01417a53852559e8a01e7d61aafb04d85fffedc1e81b20822f162d
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SHA512
0eef2f58be50b8d09d9970d43953edbf98f44beaf645e0cacdf84210cf71b3a31546f9c2885a183fd8a9cce682f21c118bac53fb0435dc3a0aeff3fa2ed6c096
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64sigu:q3Zu
Malware Config
Extracted
oski
103.114.107.28/l9/
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 1060 set thread context of 4204 1060 powershell.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 1060 powershell.exe 1060 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1060 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 powershell.exe MSBuild.exe PID 1060 wrote to memory of 4204 1060 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\5e70c004a15f9c9dd298b95046feee7f.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe#cmd2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4204 -ip 42041⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ldxxe1y0.0pg.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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memory/1060-14-0x0000018732870000-0x0000018732882000-memory.dmpFilesize
72KB
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memory/1060-12-0x000001874ADC0000-0x000001874ADD0000-memory.dmpFilesize
64KB
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memory/1060-13-0x000001874ADC0000-0x000001874ADD0000-memory.dmpFilesize
64KB
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memory/1060-11-0x000001874ADC0000-0x000001874ADD0000-memory.dmpFilesize
64KB
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memory/1060-10-0x00007FF9D39A0000-0x00007FF9D4461000-memory.dmpFilesize
10.8MB
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memory/1060-5-0x000001874AD60000-0x000001874AD82000-memory.dmpFilesize
136KB
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memory/1060-20-0x00007FF9D39A0000-0x00007FF9D4461000-memory.dmpFilesize
10.8MB
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memory/4204-15-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4204-18-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4204-19-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4204-21-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4204-22-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB