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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
05/03/2024, 03:14
Static task
static1
Behavioral task
behavioral1
Sample
b3a18b4fa0d0ea832e9807e265669977.ps1
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b3a18b4fa0d0ea832e9807e265669977.ps1
Resource
win10v2004-20240226-en
General
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Target
b3a18b4fa0d0ea832e9807e265669977.ps1
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Size
421KB
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MD5
b3a18b4fa0d0ea832e9807e265669977
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SHA1
72a2cae6bb16f9ec097fcf09e6ca2691e561cc9e
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SHA256
ad3b313a244216f2b1351bae0e8c7e62292c4fe657670a6a604619673236508f
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SHA512
31c5eb719f524cd90be5a0e86adaba0e247ddbfba5b45dd1abeda2e4c79fe27eaf8193c63fd1c5c57fa331a55ca84e772b1f9bb5013a1447ec8b1d3298052083
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64sL68:q3n
Malware Config
Extracted
oski
/103.114.107.28/l1010/
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 3588 set thread context of 4720 3588 powershell.exe 90 -
Program crash 1 IoCs
pid pid_target Process procid_target 3020 4720 WerFault.exe 90 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3588 powershell.exe 3588 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3588 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 powershell.exe 90 PID 3588 wrote to memory of 4720 3588 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\b3a18b4fa0d0ea832e9807e265669977.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:4720
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 11043⤵
- Program crash
PID:3020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4720 -ip 47201⤵PID:1616
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82