oski | 1384fedda1a2064b73982c64c756d109b16979a61ced905b338e7ad044c5e2f1

Analysis

max time kernel
132s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 02:41

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General

Target
54d62e92b93a40149d7e4fa19b798201.ps1
Size 421KB
Sample231222-c6w52aagh7
SHA256 1384fedda1a2064b73982c64c756d109b16979a61ced905b338e7ad044c5e2f1
MD5 54d62e92b93a40149d7e4fa19b798201
SHA1 0404240f6104722844ace07eb116d5edbc7a4c18
SHA512 0591e4987caad59642fb39d929465487b8d5290197b924f1a33bcf8ba5389d5a4a9d97af61b0284199e64c0b281ff41d634b9a8c4df2ef8e02e8a96842e3f4c1
SSDEEP 12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64ML68:q33
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l2626/

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 968 set thread context of 212	968	powershell.exe	25

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3116	212	WerFault.exe	25

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
968	powershell.exe
968	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	968	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25
PID 968 wrote to memory of 212	968	powershell.exe	25

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\54d62e92b93a40149d7e4fa19b798201.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:212
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1104
    3⤵
    - Program crash
    PID:3116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 212 -ip 212
1⤵
PID:4320

Network

MITRE ATT&CK Matrix

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Downloads

__PSScriptPolicyTest_ipym0fj3.kne.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ipym0fj3.kne.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/212-13-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/212-15-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/212-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/212-16-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/212-21-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/968-0-0x000002B91B0D0000-0x000002B91B0F2000-memory.dmp

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memory/968-10-0x00007FFC3A700000-0x00007FFC3B1C1000-memory.dmp

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memory/968-11-0x000002B91AEA0000-0x000002B91AEB0000-memory.dmp

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memory/968-17-0x00007FFC3A700000-0x00007FFC3B1C1000-memory.dmp

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memory/968-12-0x000002B91AFA0000-0x000002B91AFAA000-memory.dmp

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