oski | 35c7adde806daa386ef0e07fcde131bea44ccc9c7e8a03af0a80ed7385cb125f

Analysis

max time kernel
157s
max time network
164s
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 13:22

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General

Target

a0d1d10ce1be5360824104bafd7eb255.ps1
Size

421KB
MD5

a0d1d10ce1be5360824104bafd7eb255
SHA1

a5d7ebda7760537e92279c807163b7835ab789e4
SHA256

35c7adde806daa386ef0e07fcde131bea44ccc9c7e8a03af0a80ed7385cb125f
SHA512

5c49df98788c7b5e2194330b98bdf3bc7d3567c6291f4356c39a3e57668d0d478cc6bf322d37bef5413fd90f80b788a7c1539fcb847d9187e345797c5dbc5c9d
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64qL68:q3B

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l39/

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 2460 set thread context of 1828	2460	powershell.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4724	1828	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2460	powershell.exe
2460	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90
PID 2460 wrote to memory of 1828	2460	powershell.exe	90

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a0d1d10ce1be5360824104bafd7eb255.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:1828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 1112
    3⤵
    - Program crash
    PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1828 -ip 1828
1⤵
PID:3060

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_buqglgju.nov.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1828-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1828-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1828-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1828-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1828-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-14-0x000001FAFA1C0000-0x000001FAFA1CA000-memory.dmp

Filesize
40KB

Download
memory/2460-5-0x000001FAFA1D0000-0x000001FAFA1F2000-memory.dmp

Filesize
136KB

Download
memory/2460-13-0x000001FAF8120000-0x000001FAF8130000-memory.dmp

Filesize
64KB

Download
memory/2460-20-0x00007FFB9CA20000-0x00007FFB9D4E1000-memory.dmp

Filesize
10.8MB

Download
memory/2460-12-0x000001FAF8120000-0x000001FAF8130000-memory.dmp

Filesize
64KB

Download
memory/2460-11-0x000001FAF8120000-0x000001FAF8130000-memory.dmp

Filesize
64KB

Download
memory/2460-10-0x00007FFB9CA20000-0x00007FFB9D4E1000-memory.dmp

Filesize
10.8MB

Download