Analysis

  • max time kernel
    132s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2023 02:41

General

  • Target

    54d62e92b93a40149d7e4fa19b798201.ps1

  • Size

    421KB

  • MD5

    54d62e92b93a40149d7e4fa19b798201

  • SHA1

    0404240f6104722844ace07eb116d5edbc7a4c18

  • SHA256

    1384fedda1a2064b73982c64c756d109b16979a61ced905b338e7ad044c5e2f1

  • SHA512

    0591e4987caad59642fb39d929465487b8d5290197b924f1a33bcf8ba5389d5a4a9d97af61b0284199e64c0b281ff41d634b9a8c4df2ef8e02e8a96842e3f4c1

  • SSDEEP

    12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64ML68:q33

Score
10/10

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l2626/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\54d62e92b93a40149d7e4fa19b798201.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "{path}"
      2⤵
        PID:212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1104
          3⤵
          • Program crash
          PID:3116
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 212 -ip 212
      1⤵
        PID:4320

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ipym0fj3.kne.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/212-13-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/212-15-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/212-18-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/212-16-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/212-21-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/968-0-0x000002B91B0D0000-0x000002B91B0F2000-memory.dmp

        Filesize

        136KB

      • memory/968-10-0x00007FFC3A700000-0x00007FFC3B1C1000-memory.dmp

        Filesize

        10.8MB

      • memory/968-11-0x000002B91AEA0000-0x000002B91AEB0000-memory.dmp

        Filesize

        64KB

      • memory/968-17-0x00007FFC3A700000-0x00007FFC3B1C1000-memory.dmp

        Filesize

        10.8MB

      • memory/968-12-0x000002B91AFA0000-0x000002B91AFAA000-memory.dmp

        Filesize

        40KB