Analysis

  • max time kernel
    137s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 16:49

General

  • Target

    okkkkkkkk.exe

  • Size

    120KB

  • MD5

    50c2221345a927e9b1f20f49f4e32230

  • SHA1

    8cf858f3776a4d9d4f99aac814f24e646118bf5c

  • SHA256

    a8e4778e5023373038c2214d85fcbdbfe0e5f63ad721bed8def3ab65d1f292cb

  • SHA512

    c04993299fbfbcd4faefbfdca3753ee7a21db3f6f82448e7eee615349fd8f68d9a60bd0f666f5830a2aff7d3bde5fe0873f7d75f9fb0018fb2f917c469501494

  • SSDEEP

    3072:436hbrS9B+R64paFhoLU56OGt0ClArUhn3NrsM3OA6GKGA:Bbr66leyiy6uhnSM6G1

Malware Config

Signatures

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe
    "C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3288
    • C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe
      "C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3544

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\okkkkkkkk.exe.log

          Filesize

          313B

          MD5

          00b72ea3d569eb0d4fb85691b642f47c

          SHA1

          f9134a33706eb76ddb00e5276639d660a071da9b

          SHA256

          cd62d4fbf8b135be5c0b8448a7d53db7784869761a10ec99473f58f44d8e686c

          SHA512

          62af7608834d84fa95470247cab4bfa5a382825f81e9918b762e62dfc6c467e7b50cfb5b2fd36eff1da320e22aa8c1427c02820e06d9f2f6483e64740a43e8df

        • memory/3288-0-0x0000000074772000-0x0000000074773000-memory.dmp

          Filesize

          4KB

        • memory/3288-1-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3288-2-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3288-6-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3544-3-0x0000000000400000-0x0000000000436000-memory.dmp

          Filesize

          216KB

        • memory/3544-7-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3544-8-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3544-9-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3544-10-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB

        • memory/3544-11-0x0000000074770000-0x0000000074D21000-memory.dmp

          Filesize

          5.7MB