Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-12-2023 20:35

General

  • Target

    034e0a3d97747d22038e1863c0f2d4b8.ps1

  • Size

    485KB

  • MD5

    034e0a3d97747d22038e1863c0f2d4b8

  • SHA1

    aa7dc1943e46dc5b62d9fdb050e1463f109cdc84

  • SHA256

    1fafe44a7b9f6885458eb4c07a5eb607e55defd89ce8540422e7b8da3f1f58c4

  • SHA512

    1099751fc9c3d268ee726e72a0d3a8efebd8d068a8c85427cfdeca22bf4aeaa686d4a8c27911c455ca347dddb8b45942463124f1f73c1bc880f55e9d4d5a8657

  • SSDEEP

    12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64+igu:q3Xu

Score
10/10

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l35/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 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\034e0a3d97747d22038e1863c0f2d4b8.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      #cmd
      2⤵
        PID:2216
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 1120
          3⤵
          • Program crash
          PID:4540
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        #cmd
        2⤵
          PID:3484
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2216 -ip 2216
        1⤵
          PID:1500

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l1nsd4ym.lbi.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/2216-14-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/2216-20-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/2216-19-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/2216-17-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/2216-23-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/3644-1-0x00000213B2440000-0x00000213B2462000-memory.dmp

          Filesize

          136KB

        • memory/3644-10-0x00007FFFC7FD0000-0x00007FFFC8A91000-memory.dmp

          Filesize

          10.8MB

        • memory/3644-11-0x0000021399530000-0x0000021399540000-memory.dmp

          Filesize

          64KB

        • memory/3644-12-0x0000021399530000-0x0000021399540000-memory.dmp

          Filesize

          64KB

        • memory/3644-13-0x00000213B2570000-0x00000213B2582000-memory.dmp

          Filesize

          72KB

        • memory/3644-18-0x00007FFFC7FD0000-0x00007FFFC8A91000-memory.dmp

          Filesize

          10.8MB