Analysis
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max time kernel
91s -
max time network
121s -
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 23:26
Static task
static1
Behavioral task
behavioral1
Sample
25190ed01b56665dc1ef07932f781619.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
25190ed01b56665dc1ef07932f781619.ps1
Resource
win10v2004-20231215-en
General
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Target
25190ed01b56665dc1ef07932f781619.ps1
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Size
421KB
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MD5
25190ed01b56665dc1ef07932f781619
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SHA1
76818f1ba247c986f8d1aea6495b052ee39aa11e
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SHA256
28022f04aeecc3944f89980f905b714d267dfba617e4b803eb1b1b38fee7371f
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SHA512
988a7b4b123d27a38c2e45056267f61404bd3b2d622d8c3552e137830722a3c4f04de6428324f11552a94b1b2a1682f45428ed1d3f2d2ae7d9221441af88a200
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64tL68:q3u
Malware Config
Extracted
oski
/103.114.107.28/l606/
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 4696 set thread context of 696 4696 powershell.exe 94 -
Program crash 1 IoCs
pid pid_target Process procid_target 4448 696 WerFault.exe 94 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4696 powershell.exe 4696 powershell.exe 4696 powershell.exe 4696 powershell.exe 4696 powershell.exe 4696 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4696 powershell.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4696 wrote to memory of 4720 4696 powershell.exe 93 PID 4696 wrote to memory of 4720 4696 powershell.exe 93 PID 4696 wrote to memory of 4720 4696 powershell.exe 93 PID 4696 wrote to memory of 444 4696 powershell.exe 95 PID 4696 wrote to memory of 444 4696 powershell.exe 95 PID 4696 wrote to memory of 444 4696 powershell.exe 95 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94 PID 4696 wrote to memory of 696 4696 powershell.exe 94
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\25190ed01b56665dc1ef07932f781619.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4696 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:4720
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:696
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 11043⤵
- Program crash
PID:4448
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:444
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 696 -ip 6961⤵PID:4072
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82