Analysis
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max time kernel
140s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
15-01-2024 15:45
Static task
static1
Behavioral task
behavioral1
Sample
5d7989ec481168e731c3cfb7c5ab847b.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
5d7989ec481168e731c3cfb7c5ab847b.ps1
Resource
win10v2004-20231215-en
General
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Target
5d7989ec481168e731c3cfb7c5ab847b.ps1
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Size
503KB
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MD5
5d7989ec481168e731c3cfb7c5ab847b
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SHA1
385839ff1f09f1e095a145dea1f52bbbd5b636cd
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SHA256
87b44496287299afa907dcd2cfd440d030cd727590a6f5b97e712e9d6229fa2c
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SHA512
315412790dc9556e969e0ed2c95aa674a0c48eb8a529b7158b2c3ada1b8a0bfafdbd1200b82cb2953084f349e1e4f70bdf27bf969ed01c05e5add64e9ecbd1bd
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SSDEEP
12288:hpK5q6LiSSGEjVZ266AZjw0RJ9u5ILYDxD3fxYehza/tw64Xo:B3z
Malware Config
Extracted
oski
103.99.1.60/b15o/
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 536 set thread context of 3208 536 powershell.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 536 powershell.exe 536 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 536 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe PID 536 wrote to memory of 3208 536 powershell.exe aspnet_compiler.exe
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\5d7989ec481168e731c3cfb7c5ab847b.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\aspnet_compiler.exe#cmd2⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_to3n3zzu.bxx.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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memory/536-14-0x000002CC22440000-0x000002CC22456000-memory.dmpFilesize
88KB
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memory/536-10-0x00007FFBE7690000-0x00007FFBE8151000-memory.dmpFilesize
10.8MB
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memory/536-11-0x000002CC07BC0000-0x000002CC07BD0000-memory.dmpFilesize
64KB
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memory/536-12-0x000002CC07BC0000-0x000002CC07BD0000-memory.dmpFilesize
64KB
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memory/536-13-0x000002CC07BC0000-0x000002CC07BD0000-memory.dmpFilesize
64KB
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memory/536-9-0x000002CC07C80000-0x000002CC07CA2000-memory.dmpFilesize
136KB
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memory/536-18-0x00007FFBE7690000-0x00007FFBE8151000-memory.dmpFilesize
10.8MB
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memory/3208-15-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/3208-19-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/3208-20-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/3208-21-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/3208-22-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB