oski | 54b0cd3ee5db8f6574c92e39ac3fcb8be6236f57c82305404ee60b2553c6dbff

Analysis

max time kernel
195s
max time network
202s
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 04:43

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General

Target

666ed175d4a2f463c4df96f78e48adf7.ps1
Size

485KB
MD5

666ed175d4a2f463c4df96f78e48adf7
SHA1

db3b749999695944c0e27c42682a39ee719fac94
SHA256

54b0cd3ee5db8f6574c92e39ac3fcb8be6236f57c82305404ee60b2553c6dbff
SHA512

7148a341f650bd5821abba0a13fce4bd277d17544b61b823c2c2a0ab313825fe56e52b2c968386f2fba97fc1f8cb932bd2d35469e65cd8e03064db917ce8f3bc
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64Eigu:q3Ru

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l1616/

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 4072 set thread context of 4012	4072	powershell.exe	94

Program crash 1 IoCs

pid	pid_target	Process	procid_target
884	4012	WerFault.exe	94

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4072	powershell.exe
4072	powershell.exe
4072	powershell.exe
4072	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4072	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 4408	4072	powershell.exe	93
PID 4072 wrote to memory of 4408	4072	powershell.exe	93
PID 4072 wrote to memory of 4408	4072	powershell.exe	93
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94
PID 4072 wrote to memory of 4012	4072	powershell.exe	94

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\666ed175d4a2f463c4df96f78e48adf7.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:4408
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:4012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4012 -s 1072
    3⤵
    - Program crash
    PID:884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4012 -ip 4012
1⤵
PID:2320

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_umsp0iq2.f03.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4012-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4012-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4012-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4012-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4012-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4072-11-0x000002BC58380000-0x000002BC58390000-memory.dmp

Filesize
64KB

Download
memory/4072-15-0x000002BC58380000-0x000002BC58390000-memory.dmp

Filesize
64KB

Download
memory/4072-16-0x000002BC58380000-0x000002BC58390000-memory.dmp

Filesize
64KB

Download
memory/4072-14-0x00007FFE082E0000-0x00007FFE08DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-13-0x000002BC3FED0000-0x000002BC3FEE2000-memory.dmp

Filesize
72KB

Download
memory/4072-12-0x000002BC58380000-0x000002BC58390000-memory.dmp

Filesize
64KB

Download
memory/4072-23-0x00007FFE082E0000-0x00007FFE08DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-10-0x00007FFE082E0000-0x00007FFE08DA1000-memory.dmp

Filesize
10.8MB

Download
memory/4072-9-0x000002BC3FEA0000-0x000002BC3FEC2000-memory.dmp

Filesize
136KB

Download