oski | 985016101e5efecfa67dd1e2c73776d1a99c7967251b3a3c7e9008b7e31279f3

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21-12-2023 22:39

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General

Target

177f321e3e3780aeff7954abf45caf77.ps1
Size

421KB
MD5

177f321e3e3780aeff7954abf45caf77
SHA1

4d26ed973a1a3dc7d8cb938b9d73a2da065a8862
SHA256

985016101e5efecfa67dd1e2c73776d1a99c7967251b3a3c7e9008b7e31279f3
SHA512

fe387cba2b27b403082c09e0e8ee5f9c126ca37a583eaa93fe10e66ea6fd2c78a978f6893488e47bdfb5fc51a43d7f285f15e32be90ff004263aa5855f2aef58
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64UL68:q3v

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l37/

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 2628 set thread context of 2740	2628	powershell.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2924	2740	WerFault.exe	30

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2652	2628	powershell.exe	29
PID 2628 wrote to memory of 2652	2628	powershell.exe	29
PID 2628 wrote to memory of 2652	2628	powershell.exe	29
PID 2628 wrote to memory of 2652	2628	powershell.exe	29
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2628 wrote to memory of 2740	2628	powershell.exe	30
PID 2740 wrote to memory of 2924	2740	MSBuild.exe	31
PID 2740 wrote to memory of 2924	2740	MSBuild.exe	31
PID 2740 wrote to memory of 2924	2740	MSBuild.exe	31
PID 2740 wrote to memory of 2924	2740	MSBuild.exe	31

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\177f321e3e3780aeff7954abf45caf77.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  PID:2652
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 500
    3⤵
    - Program crash
    PID:2924

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2628-4-0x000000001B2A0000-0x000000001B582000-memory.dmp

Filesize
2.9MB

Download
memory/2628-6-0x000007FEF6000000-0x000007FEF699D000-memory.dmp

Filesize
9.6MB

Download
memory/2628-7-0x0000000002600000-0x0000000002680000-memory.dmp

Filesize
512KB

Download
memory/2628-5-0x0000000002690000-0x0000000002698000-memory.dmp

Filesize
32KB

Download
memory/2628-8-0x000007FEF6000000-0x000007FEF699D000-memory.dmp

Filesize
9.6MB

Download
memory/2628-10-0x0000000002600000-0x0000000002680000-memory.dmp

Filesize
512KB

Download
memory/2628-11-0x0000000002600000-0x0000000002680000-memory.dmp

Filesize
512KB

Download
memory/2628-9-0x0000000002600000-0x0000000002680000-memory.dmp

Filesize
512KB

Download
memory/2628-12-0x000000001B190000-0x000000001B19A000-memory.dmp

Filesize
40KB

Download
memory/2628-27-0x000007FEF6000000-0x000007FEF699D000-memory.dmp

Filesize
9.6MB

Download
memory/2740-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download