oski | 17010c5ca84e2a4cf7a970c153bb3c042462af5b8273ab2f3043d13b35b1dcfe

Analysis

max time kernel
143s
max time network
155s
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 15:37

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General

Target

db8f53266b12e2beaf2f034b73824cbf.ps1
Size

485KB
MD5

db8f53266b12e2beaf2f034b73824cbf
SHA1

a3d785e7173b2070123e06c7ce668df7f31c5493
SHA256

17010c5ca84e2a4cf7a970c153bb3c042462af5b8273ab2f3043d13b35b1dcfe
SHA512

d485740ec9464823470853402620939991884a2a77b9dfcfd5fd4e62cef41d8ffa4220d063325f525b9a4fc247e238c10d761d1b6f5635bb60015240a923b5d6
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64digu:q3eu

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l808/

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 3632 set thread context of 4712	3632	powershell.exe	92

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1004	4712	WerFault.exe	92

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3632	powershell.exe
3632	powershell.exe
3632	powershell.exe
3632	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3632	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 2664	3632	powershell.exe	91
PID 3632 wrote to memory of 2664	3632	powershell.exe	91
PID 3632 wrote to memory of 2664	3632	powershell.exe	91
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92
PID 3632 wrote to memory of 4712	3632	powershell.exe	92

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\db8f53266b12e2beaf2f034b73824cbf.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:2664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:4712
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 1108
    3⤵
    - Program crash
    PID:1004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 4712 -ip 4712
1⤵
PID:2136

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rxhadf4w.qt2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3632-14-0x0000020A4EB70000-0x0000020A4EB82000-memory.dmp

Filesize
72KB

Download
memory/3632-10-0x00007FFCE6630000-0x00007FFCE70F1000-memory.dmp

Filesize
10.8MB

Download
memory/3632-12-0x0000020A4DEF0000-0x0000020A4DF00000-memory.dmp

Filesize
64KB

Download
memory/3632-13-0x0000020A4DEF0000-0x0000020A4DF00000-memory.dmp

Filesize
64KB

Download
memory/3632-11-0x0000020A4DEF0000-0x0000020A4DF00000-memory.dmp

Filesize
64KB

Download
memory/3632-9-0x0000020A4E7E0000-0x0000020A4E802000-memory.dmp

Filesize
136KB

Download
memory/3632-18-0x00007FFCE6630000-0x00007FFCE70F1000-memory.dmp

Filesize
10.8MB

Download
memory/4712-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4712-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4712-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4712-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4712-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download