oski | 089064337fd3f97810f053d1228270ade92e5799ef8138a9ae55711d7e717b52

Analysis

max time kernel
123s
max time network
151s
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 07:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

784d471aa108a379fc6d4ecaaf9449e1.ps1
Size

485KB
MD5

784d471aa108a379fc6d4ecaaf9449e1
SHA1

606663288ff2c27efd2519d9de38c7910a06b51e
SHA256

089064337fd3f97810f053d1228270ade92e5799ef8138a9ae55711d7e717b52
SHA512

616fe993bb2b26d41282aabd45cea3e082dd8a4ceea38bfe3ce23d752079761b1cc7a43a6f55fd3b1e977d8d3fd957b95a06db8f87ed9ea315f092db9b1c115c
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64cigu:q3Zu

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 3980 set thread context of 3904	3980	powershell.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3348	3904	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3980	powershell.exe
3980	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3980	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90
PID 3980 wrote to memory of 3904	3980	powershell.exe	90

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\784d471aa108a379fc6d4ecaaf9449e1.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:3904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 1108
    3⤵
    - Program crash
    PID:3348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3904 -ip 3904
1⤵
PID:2452

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_25shlyyj.j3c.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3904-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3904-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3904-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3904-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3904-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3980-14-0x000001866E860000-0x000001866E872000-memory.dmp

Filesize
72KB

Download
memory/3980-10-0x00007FF893DD0000-0x00007FF894891000-memory.dmp

Filesize
10.8MB

Download
memory/3980-11-0x000001866E8C0000-0x000001866E8D0000-memory.dmp

Filesize
64KB

Download
memory/3980-19-0x00007FF893DD0000-0x00007FF894891000-memory.dmp

Filesize
10.8MB

Download
memory/3980-13-0x000001866E8C0000-0x000001866E8D0000-memory.dmp

Filesize
64KB

Download
memory/3980-12-0x000001866E8C0000-0x000001866E8D0000-memory.dmp

Filesize
64KB

Download
memory/3980-9-0x000001866E7F0000-0x000001866E812000-memory.dmp

Filesize
136KB

Download