oski | 67001e9d36071d9cf4927282e50e07c02a61036cd34d4e7ed0578c64352b3739

Analysis

max time kernel
155s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 11:49

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General

Target
1789c812d8efebd2b67d2ada473a2219.ps1
Size 421KB
Sample231230-ny6v2sdce2
SHA256 67001e9d36071d9cf4927282e50e07c02a61036cd34d4e7ed0578c64352b3739
MD5 1789c812d8efebd2b67d2ada473a2219
SHA1 e25923be4840de11c5cbc5ca8bbc1251b783972a
SHA512 97c8b1ecdf536d1309cfd8f1abb5df0e224c2a9a6e1be49f3d9fe7d7cb1f5814cbaa0b1df9e2142afd2fe0d4ef83d72ce0dc882ec73672f4fb5393198ffb550d
SSDEEP 12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64oL68:q3L
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.114.107.28/l5/

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 464 set thread context of 2856	464	powershell.exe	88

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
464	powershell.exe
464	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	464	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88
PID 464 wrote to memory of 2856	464	powershell.exe	88

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\1789c812d8efebd2b67d2ada473a2219.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:464
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:2856

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

__PSScriptPolicyTest_ykkrqkz2.dvu.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ykkrqkz2.dvu.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/464-5-0x0000026AFE560000-0x0000026AFE582000-memory.dmp

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memory/464-10-0x00007FF877AD0000-0x00007FF878591000-memory.dmp

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memory/464-12-0x0000026AFDCA0000-0x0000026AFDCB0000-memory.dmp

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memory/464-11-0x0000026AFDCA0000-0x0000026AFDCB0000-memory.dmp

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memory/464-13-0x0000026AFE8B0000-0x0000026AFE8BA000-memory.dmp

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memory/464-19-0x00007FF877AD0000-0x00007FF878591000-memory.dmp

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memory/2856-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2856-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2856-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2856-20-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2856-21-0x0000000000400000-0x0000000000438000-memory.dmp

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