oski | ea0157bc1e7b2178b75854a5fa5f139e4b94da24fdfb6710b69bc0318c25a379

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2024 23:45

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General

Target

8ad68f5c7dd4d299af03f3a53d3eea8f.ps1
Size

485KB
MD5

8ad68f5c7dd4d299af03f3a53d3eea8f
SHA1

16413b33f91a5ac23b9afdce7b639aa5749b2a06
SHA256

ea0157bc1e7b2178b75854a5fa5f139e4b94da24fdfb6710b69bc0318c25a379
SHA512

774e43244601d378ae81cb332ab464b4ff19bb4d4441910eab59a5b83dde15fa27712a339ac7e7517e9345fab5948188c5b1071ef46ce2bd91313aee6f9c2297
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64Migu:q3Fu

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.114.107.28/l11/

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 3376 set thread context of 1704	3376	powershell.exe	86

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4300	1704	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3376	powershell.exe
3376	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86
PID 3376 wrote to memory of 1704	3376	powershell.exe	86

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8ad68f5c7dd4d299af03f3a53d3eea8f.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:1704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 1228
    3⤵
    - Program crash
    PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1704 -ip 1704
1⤵
PID:4732

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pxrr5ugr.0yc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1704-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1704-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1704-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1704-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1704-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1704-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3376-10-0x00007FFFBF2C0000-0x00007FFFBFD81000-memory.dmp

Filesize
10.8MB

Download
memory/3376-11-0x0000017602C60000-0x0000017602C70000-memory.dmp

Filesize
64KB

Download
memory/3376-12-0x0000017602C60000-0x0000017602C70000-memory.dmp

Filesize
64KB

Download
memory/3376-13-0x0000017602CB0000-0x0000017602CC2000-memory.dmp

Filesize
72KB

Download
memory/3376-18-0x00007FFFBF2C0000-0x00007FFFBFD81000-memory.dmp

Filesize
10.8MB

Download
memory/3376-6-0x0000017602CE0000-0x0000017602D02000-memory.dmp

Filesize
136KB

Download