oski | e50457d38e4cd7424a17fa563b9a40c1db3d81a4ad29ffda9a50dad7327ade58

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-01-2024 11:56

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General

Target

678fe2eeaa5398e8366ede0ba83216f7.ps1
Size

485KB
MD5

678fe2eeaa5398e8366ede0ba83216f7
SHA1

1b5f150b389e61b155f75a6b374f8aa02ec0a93f
SHA256

e50457d38e4cd7424a17fa563b9a40c1db3d81a4ad29ffda9a50dad7327ade58
SHA512

d4533677f984fdf9025f69ae20a2ffcf2b274647bde07954eedc502e1702d13bcab3e8c293e1adadd0bdcd5e145434ede1be14453e576c7a05fae8fb4e085b97
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw641igu:q3qu

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.114.107.28/l202/

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 1036 set thread context of 4904	1036	powershell.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2508	4904	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1036	powershell.exe
1036	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1036	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90
PID 1036 wrote to memory of 4904	1036	powershell.exe	90

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\678fe2eeaa5398e8366ede0ba83216f7.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  #cmd
  2⤵
  PID:4904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1224
    3⤵
    - Program crash
    PID:2508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4904 -ip 4904
1⤵
PID:3180

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cgucfihw.0z3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1036-18-0x00007FFF92DA0000-0x00007FFF93861000-memory.dmp

Filesize
10.8MB

Download
memory/1036-10-0x00007FFF92DA0000-0x00007FFF93861000-memory.dmp

Filesize
10.8MB

Download
memory/1036-11-0x00000286F79F0000-0x00000286F7A00000-memory.dmp

Filesize
64KB

Download
memory/1036-12-0x00000286F79F0000-0x00000286F7A00000-memory.dmp

Filesize
64KB

Download
memory/1036-13-0x00000286F9DE0000-0x00000286F9DF2000-memory.dmp

Filesize
72KB

Download
memory/1036-9-0x00000286F79C0000-0x00000286F79E2000-memory.dmp

Filesize
136KB

Download
memory/4904-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4904-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4904-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4904-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4904-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4904-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download