oski | 19b3d1605a53c09fa8a8fc3675c928cb5403bdef1e3bd0b3c4d69f56a06e436d

General

Target

56d68b21e189451019367c59f00ee597.ps1
Size

656KB
MD5

56d68b21e189451019367c59f00ee597
SHA1

e0074b5041539fe58295d9763693d809f0bcf1df
SHA256

19b3d1605a53c09fa8a8fc3675c928cb5403bdef1e3bd0b3c4d69f56a06e436d
SHA512

cdf7f5c3b23571c9e9dd96db40febea56abd5b9554526fe89cc6d2a66638c5d685ea08a841700042194316906b1a5332222057e983f2d2f8f130cdfb0b78e2fa
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64a8TVkc5A+:g3CTmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

103.114.107.28/l17/

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 4424 set thread context of 4348	4424	powershell.exe	26

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4548	4348	WerFault.exe	26

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4424	powershell.exe
4424	powershell.exe
4424	powershell.exe
4424	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4424	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 1156	4424	powershell.exe	25
PID 4424 wrote to memory of 1156	4424	powershell.exe	25
PID 4424 wrote to memory of 1156	4424	powershell.exe	25
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26
PID 4424 wrote to memory of 4348	4424	powershell.exe	26

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\56d68b21e189451019367c59f00ee597.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:1156
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:4348
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 1212
    3⤵
    - Program crash
    PID:4548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4348 -ip 4348
1⤵
PID:4636

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b2fe4uoa.x5c.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4348-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4348-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4348-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4348-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4348-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4348-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4424-43-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-35-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-13-0x000001DE46F10000-0x000001DE46F36000-memory.dmp

Filesize
152KB

Download
memory/4424-60-0x00007FFB54700000-0x00007FFB551C1000-memory.dmp

Filesize
10.8MB

Download
memory/4424-58-0x000001DE46A70000-0x000001DE46A80000-memory.dmp

Filesize
64KB

Download
memory/4424-10-0x00007FFB54700000-0x00007FFB551C1000-memory.dmp

Filesize
10.8MB

Download
memory/4424-54-0x000001DE46A60000-0x000001DE46A61000-memory.dmp

Filesize
4KB

Download
memory/4424-53-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-51-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-49-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-47-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-0-0x000001DE46A20000-0x000001DE46A42000-memory.dmp

Filesize
136KB

Download
memory/4424-41-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-39-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-37-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-45-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-33-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-31-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-29-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-27-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-25-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-23-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-21-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-19-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-17-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-15-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-14-0x000001DE46F10000-0x000001DE46F30000-memory.dmp

Filesize
128KB

Download
memory/4424-63-0x000001DE46A70000-0x000001DE46A80000-memory.dmp

Filesize
64KB

Download
memory/4424-11-0x000001DE46A70000-0x000001DE46A80000-memory.dmp

Filesize
64KB

Download
memory/4424-12-0x000001DE46A70000-0x000001DE46A80000-memory.dmp

Filesize
64KB

Download

Analysis

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