Analysis

  • max time kernel
    157s
  • max time network
    162s
  • 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 04:50

General

  • Target

    67b72b574b52873730e274250feef9ed.ps1

  • Size

    421KB

  • MD5

    67b72b574b52873730e274250feef9ed

  • SHA1

    ef44d31846ad814cd2d7cf20ce071bdd2d4eac41

  • SHA256

    c66d5ae5f1cc7e8a8c0047e51ce2f5a94de960f63ea2107aaf60bebce75fb2bb

  • SHA512

    67babcc41723ef944a90463ba65fc20ec1cac472f98b5c84942dfa58af004097333d762a9147fa6fd7956fec9febf60fb3e916c73ceba83e50c5a4d187f45617

  • SSDEEP

    12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64eL68:q3N

Score
10/10

Malware Config

Extracted

Family

oski

C2

103.114.107.28/l3/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 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\67b72b574b52873730e274250feef9ed.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "{path}"
      2⤵
        PID:2864

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t5elkrw5.rgp.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2816-0-0x0000025EF0AA0000-0x0000025EF0AC2000-memory.dmp

      Filesize

      136KB

    • memory/2816-10-0x00007FF994250000-0x00007FF994D11000-memory.dmp

      Filesize

      10.8MB

    • memory/2816-12-0x0000025ED7BE0000-0x0000025ED7BF0000-memory.dmp

      Filesize

      64KB

    • memory/2816-11-0x0000025ED7BE0000-0x0000025ED7BF0000-memory.dmp

      Filesize

      64KB

    • memory/2816-13-0x0000025EF0E40000-0x0000025EF0E4A000-memory.dmp

      Filesize

      40KB

    • memory/2816-19-0x00007FF994250000-0x00007FF994D11000-memory.dmp

      Filesize

      10.8MB

    • memory/2864-14-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2864-17-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2864-18-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2864-20-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2864-21-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB