Analysis

  • max time kernel
    136s
  • max time network
    152s
  • 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 13:11

General

  • Target

    9b2f171a482bb7a217bc5831a7dcbf1c.ps1

  • Size

    485KB

  • MD5

    9b2f171a482bb7a217bc5831a7dcbf1c

  • SHA1

    1ee718a4449be57fd88455a2de6150d6506057df

  • SHA256

    ad86961a4df9ed275fa5cbf709b6d394f992a531cf0762ff1de73ab832f91c5a

  • SHA512

    6427bd1d42780b24a8b49f487d94e986cb84dfe4abd7361876520bf6d779f2aff3e667edfb577f4315d2804f23d44569c368f18b5ccb06a62beb71cc8061d6c1

  • SSDEEP

    12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64figu:q3wu

Score
10/10

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l25/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 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\9b2f171a482bb7a217bc5831a7dcbf1c.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      #cmd
      2⤵
        PID:2500
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        #cmd
        2⤵
          PID:3820
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 1100
            3⤵
            • Program crash
            PID:4620
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3820 -ip 3820
        1⤵
          PID:4004

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rkp4alyv.vpj.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/2948-14-0x0000022CEF380000-0x0000022CEF392000-memory.dmp

          Filesize

          72KB

        • memory/2948-10-0x00007FFAD4F20000-0x00007FFAD59E1000-memory.dmp

          Filesize

          10.8MB

        • memory/2948-12-0x0000022CEF370000-0x0000022CEF380000-memory.dmp

          Filesize

          64KB

        • memory/2948-11-0x0000022CEF370000-0x0000022CEF380000-memory.dmp

          Filesize

          64KB

        • memory/2948-13-0x0000022CEF370000-0x0000022CEF380000-memory.dmp

          Filesize

          64KB

        • memory/2948-5-0x0000022CF19A0000-0x0000022CF19C2000-memory.dmp

          Filesize

          136KB

        • memory/2948-20-0x00007FFAD4F20000-0x00007FFAD59E1000-memory.dmp

          Filesize

          10.8MB

        • memory/3820-15-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/3820-18-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/3820-19-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/3820-21-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/3820-24-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB