oski | 74ba11de6f8b9142125db80bdba421638a3d002ef77d7231e96081757920ebcc

Analysis

max time kernel
133s
max time network
182s
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, 04:28

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General

Target
63fccd4437a1fc5ec961bd80801aa027.ps1
Size 421KB
Sample231222-e3mtasddhq
SHA256 74ba11de6f8b9142125db80bdba421638a3d002ef77d7231e96081757920ebcc
MD5 63fccd4437a1fc5ec961bd80801aa027
SHA1 2718a421713bab972ad9d3f3021942042bbbfb15
SHA512 93b0a1cd0212e5114caaf3a501c87f31c205e3c4e5782bf3672fcd479b3414739a64e499612530c63544e7f984665eb8abd0e59c92f8163eb4b63305961ea7a1
SSDEEP 12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64cL68:q3X
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l1919/

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 4516 set thread context of 5024	4516	powershell.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1632	5024	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4516	powershell.exe
4516	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91
PID 4516 wrote to memory of 5024	4516	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\63fccd4437a1fc5ec961bd80801aa027.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:5024
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5024 -s 1100
    3⤵
    - Program crash
    PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5024 -ip 5024
1⤵
PID:4092

Network

MITRE ATT&CK Matrix

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Downloads

__PSScriptPolicyTest_uxqheeo0.d0d.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uxqheeo0.d0d.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/4516-9-0x000001775BA10000-0x000001775BA32000-memory.dmp

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memory/4516-10-0x00007FF8516D0000-0x00007FF852191000-memory.dmp

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memory/4516-11-0x000001775BAA0000-0x000001775BAB0000-memory.dmp

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memory/4516-12-0x000001775BAA0000-0x000001775BAB0000-memory.dmp

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memory/4516-13-0x00000177434A0000-0x00000177434AA000-memory.dmp

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memory/4516-19-0x00007FF8516D0000-0x00007FF852191000-memory.dmp

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memory/5024-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/5024-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/5024-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/5024-20-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/5024-23-0x0000000000400000-0x0000000000438000-memory.dmp

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