Analysis

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

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2024 01:43

General

  • Target

    4c8015bbc773e46fdbd2ed3785d7bb57.ps1

  • Size

    493KB

  • MD5

    4c8015bbc773e46fdbd2ed3785d7bb57

  • SHA1

    64df0b0921bd0c9eb7189c17fe1a7111c34de176

  • SHA256

    9bb9ebda548a1b5411f95a24e4f2b27705473e91033ae6cb158c19eb2cca5908

  • SHA512

    824b2ee4d088340be9a0f589b50bf2ba08540000c99db380bfe9d1a849eb5f01e16f0e650bbadb45d4d89fce6fb2408a597cc6eeae1147ebda353b0305706a7c

  • SSDEEP

    12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw64Pj:FMn3u

Score
10/10

Malware Config

Extracted

Family

oski

C2

103.99.1.60/b11k/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\4c8015bbc773e46fdbd2ed3785d7bb57.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4084
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      #Powershell
      2⤵
        PID:4920
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        #Powershell
        2⤵
          PID:4540

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mqucpgri.1vz.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/4084-5-0x00000299DBF90000-0x00000299DBFB2000-memory.dmp

        Filesize

        136KB

      • memory/4084-10-0x00007FFEC3D10000-0x00007FFEC47D1000-memory.dmp

        Filesize

        10.8MB

      • memory/4084-11-0x00000299F4530000-0x00000299F4540000-memory.dmp

        Filesize

        64KB

      • memory/4084-12-0x00000299F4530000-0x00000299F4540000-memory.dmp

        Filesize

        64KB

      • memory/4084-13-0x00000299F44B0000-0x00000299F44C2000-memory.dmp

        Filesize

        72KB

      • memory/4084-19-0x00007FFEC3D10000-0x00007FFEC47D1000-memory.dmp

        Filesize

        10.8MB

      • memory/4540-15-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/4540-20-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/4540-18-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/4540-14-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/4540-21-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB