oski | 231ac4cf73a42ea2dc3fb6fc6c708a1288322ce9c98098d3e6f1b100c2c0b3d7

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-03-2024 05:34

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General

Target

bff92dc80413fbf07cac532191df5832.ps1
Size

706KB
MD5

bff92dc80413fbf07cac532191df5832
SHA1

dc231645b8164777b6e7d5b87d3c16a564d84fcf
SHA256

231ac4cf73a42ea2dc3fb6fc6c708a1288322ce9c98098d3e6f1b100c2c0b3d7
SHA512

ec2aa38e798d65d3d7788e099e677f3a575fae2ed8a2c273fcf322a26e166cd3a47c2106af1ee12ba752cdb8c562f09290d36332407ee9aa6bb3f8297010b701
SSDEEP

6144:raJpHs+ApelD0TpSXKFlECflUZdAMr9LXoFNihdhUNK/16dBzMeiuoC6GSO0m02:BOARZ02

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.99.1.60/we/sb/

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 4744 set thread context of 636	4744	powershell.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2556	636	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4744	powershell.exe
4744	powershell.exe
4744	powershell.exe
4744	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4744	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 2272	4744	powershell.exe	90
PID 4744 wrote to memory of 2272	4744	powershell.exe	90
PID 4744 wrote to memory of 2272	4744	powershell.exe	90
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91
PID 4744 wrote to memory of 636	4744	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\bff92dc80413fbf07cac532191df5832.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2272
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 1272
    3⤵
    - Program crash
    PID:2556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 636 -ip 636
1⤵
PID:836

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lrmy2j45.wpi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/636-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/636-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/636-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/636-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/636-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/636-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4744-10-0x00007FFE83EB0000-0x00007FFE84971000-memory.dmp

Filesize
10.8MB

Download
memory/4744-11-0x00000214B85B0000-0x00000214B85C0000-memory.dmp

Filesize
64KB

Download
memory/4744-12-0x00000214B85B0000-0x00000214B85C0000-memory.dmp

Filesize
64KB

Download
memory/4744-13-0x00000214A00A0000-0x00000214A00A8000-memory.dmp

Filesize
32KB

Download
memory/4744-18-0x00007FFE83EB0000-0x00007FFE84971000-memory.dmp

Filesize
10.8MB

Download
memory/4744-5-0x00000214B8500000-0x00000214B8522000-memory.dmp

Filesize
136KB

Download