oski | 689a81ccc7f1bbbe80a4bb32f64551ea0f5fea836427b756fc7687b5b65278bf

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2023 23:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

26f79d975f75e6bc2eac26ac849aad25.ps1
Size

485KB
MD5

26f79d975f75e6bc2eac26ac849aad25
SHA1

20ad398f4058b155418c5378032dc71b42e09007
SHA256

689a81ccc7f1bbbe80a4bb32f64551ea0f5fea836427b756fc7687b5b65278bf
SHA512

1d12a648a0d24643db8d753ed6b05fbde92ad8fb5cfdb9dcd42dc0161fa59fb4e6dbbb4aec6ae4caa4cdd0829fe78b2c4cb4db5509ba5aa72b0168a034eacf66
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64Eigu:q3Ru

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l2121/

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 4972 set thread context of 4072	4972	powershell.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2080	4072	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4972	powershell.exe
4972	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90
PID 4972 wrote to memory of 4072	4972	powershell.exe	90

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\26f79d975f75e6bc2eac26ac849aad25.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:4072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4072 -s 1056
    3⤵
    - Program crash
    PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4072 -ip 4072
1⤵
PID:1168

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tvorf3dm.m1w.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4072-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4072-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4072-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4072-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4072-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4972-11-0x0000020E4C8B0000-0x0000020E4C8C0000-memory.dmp

Filesize
64KB

Download
memory/4972-14-0x0000020E4C890000-0x0000020E4C8A2000-memory.dmp

Filesize
72KB

Download
memory/4972-13-0x0000020E4C8B0000-0x0000020E4C8C0000-memory.dmp

Filesize
64KB

Download
memory/4972-12-0x0000020E4C8B0000-0x0000020E4C8C0000-memory.dmp

Filesize
64KB

Download
memory/4972-20-0x00007FFA95A00000-0x00007FFA964C1000-memory.dmp

Filesize
10.8MB

Download
memory/4972-10-0x00007FFA95A00000-0x00007FFA964C1000-memory.dmp

Filesize
10.8MB

Download
memory/4972-5-0x0000020E4C860000-0x0000020E4C882000-memory.dmp

Filesize
136KB

Download