Analysis
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max time kernel
158s -
max time network
165s -
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 03:58
Static task
static1
Behavioral task
behavioral1
Sample
5f34c76b6ffb8fd032ccc5633072f573.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
5f34c76b6ffb8fd032ccc5633072f573.ps1
Resource
win10v2004-20231215-en
General
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Target
5f34c76b6ffb8fd032ccc5633072f573.ps1
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Size
421KB
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MD5
5f34c76b6ffb8fd032ccc5633072f573
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SHA1
225d38a6eace892309d083c12bc0224f7572e64c
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SHA256
dbe7ae3664d55a4ed1720658ddbcdd00210649becb4a5a48ed13e08b98d94010
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SHA512
471017c708f4f970ca62258a8173431ba081848a0c4e86a93e08e798deaa2dda57da3907aee863e24bcc8b14472c104e8632cde53fe6a15638fcec7faacfe225
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SSDEEP
12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64yL68:q3Z
Malware Config
Extracted
oski
103.114.107.28/l7/
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 336 set thread context of 3476 336 powershell.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exepid process 336 powershell.exe 336 powershell.exe 336 powershell.exe 336 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 336 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
powershell.exedescription pid process target process PID 336 wrote to memory of 3792 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3792 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3792 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 powershell.exe MSBuild.exe PID 336 wrote to memory of 3476 336 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\5f34c76b6ffb8fd032ccc5633072f573.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:336 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:3792
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:3476
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82