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Analysis

  • max time kernel
    128s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 16:44

General

  • Target

    b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883.exe

  • Size

    44KB

  • MD5

    3f70190e86fa3aef81768e5fd9dd862c

  • SHA1

    8ad173aa4baf18d7b86d8f4e160d29a4baa73810

  • SHA256

    b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883

  • SHA512

    47f6417b26ffd92d44ee52e0c82f282bbc160a046fff053b7fa44154c1ded0cae13ae975988589597893c87652613594dfc6c9308925430e62314491e4bb29c7

  • SSDEEP

    768:gqJxn8eXSZ9Ss0JLIbuxln62gb58126HAjHtU2qvtO1a58t1tRONToj0Enjd76RL:d9lXdHQmaLLONEnjF64

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883.exe
    "C:\Users\Admin\AppData\Local\Temp\b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Users\Admin\AppData\Local\Temp\chrome.exe
      "C:\Users\Admin\AppData\Local\Temp\chrome.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:792
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\chrome.exe" "chrome.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\chrome.exe

    Filesize

    44KB

    MD5

    3f70190e86fa3aef81768e5fd9dd862c

    SHA1

    8ad173aa4baf18d7b86d8f4e160d29a4baa73810

    SHA256

    b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883

    SHA512

    47f6417b26ffd92d44ee52e0c82f282bbc160a046fff053b7fa44154c1ded0cae13ae975988589597893c87652613594dfc6c9308925430e62314491e4bb29c7

  • C:\Users\Admin\AppData\Local\Temp\chrome.exe

    Filesize

    44KB

    MD5

    3f70190e86fa3aef81768e5fd9dd862c

    SHA1

    8ad173aa4baf18d7b86d8f4e160d29a4baa73810

    SHA256

    b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883

    SHA512

    47f6417b26ffd92d44ee52e0c82f282bbc160a046fff053b7fa44154c1ded0cae13ae975988589597893c87652613594dfc6c9308925430e62314491e4bb29c7

  • \Users\Admin\AppData\Local\Temp\chrome.exe

    Filesize

    44KB

    MD5

    3f70190e86fa3aef81768e5fd9dd862c

    SHA1

    8ad173aa4baf18d7b86d8f4e160d29a4baa73810

    SHA256

    b077b323bb0c5955af06b6e0c93ba36e489d6b0a8de9e2fc9c55fdb84550a883

    SHA512

    47f6417b26ffd92d44ee52e0c82f282bbc160a046fff053b7fa44154c1ded0cae13ae975988589597893c87652613594dfc6c9308925430e62314491e4bb29c7

  • memory/792-63-0x0000000074EC0000-0x000000007546B000-memory.dmp

    Filesize

    5.7MB

  • memory/792-65-0x0000000074EC0000-0x000000007546B000-memory.dmp

    Filesize

    5.7MB

  • memory/1476-54-0x0000000076701000-0x0000000076703000-memory.dmp

    Filesize

    8KB

  • memory/1476-55-0x0000000074EC0000-0x000000007546B000-memory.dmp

    Filesize

    5.7MB

  • memory/1476-61-0x0000000074EC0000-0x000000007546B000-memory.dmp

    Filesize

    5.7MB