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Analysis

  • max time kernel
    111s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 23:48

General

  • Target

    963dd2544a0c062d1e0d30bc9765cf1d17d544bdfef2df6d261d6a4ab4f3b13b.exe

  • Size

    132KB

  • MD5

    09fea76e38906828858086485e8fe1ba

  • SHA1

    c2e8fbcb86b76b3796ad46571d80a76bca646cef

  • SHA256

    963dd2544a0c062d1e0d30bc9765cf1d17d544bdfef2df6d261d6a4ab4f3b13b

  • SHA512

    7ac83945c855820cc09d582e2f39c4e6f55ede5e6dd7b7405e018d1c25dcb401c10bdf9cceb68fa96a62dfe4590ad832b41ee41f9faf4101d3c77824410673c0

  • SSDEEP

    1536:GMkK2d/4inMnzzMcVVnEGKbfSG7Gtg3sZnF0+VKk:nk3/nMnz4cVVnEGi53aF0+Mk

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 58 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\963dd2544a0c062d1e0d30bc9765cf1d17d544bdfef2df6d261d6a4ab4f3b13b.exe
    "C:\Users\Admin\AppData\Local\Temp\963dd2544a0c062d1e0d30bc9765cf1d17d544bdfef2df6d261d6a4ab4f3b13b.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1784
    • C:\Users\Admin\fesiz.exe
      "C:\Users\Admin\fesiz.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4332

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\fesiz.exe

    Filesize

    132KB

    MD5

    3c286783a68f2dd71a35ece7c15d56c1

    SHA1

    6ae5c871339901c67f3e2b6faf3350463ff7f065

    SHA256

    5b0a08be2cc3514549d52d4a2c26fa3dafa1aba9f5c40cc2edbd4bf89fee16a2

    SHA512

    07b54d8ee6c798f2d89716d038b8ad3c6110862e2e868906dbcfdbe334d1d8fde3a519309231c635b4c75544fac18ad87bd0901caf2cb0842741dc90b6f54b1a

  • C:\Users\Admin\fesiz.exe

    Filesize

    132KB

    MD5

    3c286783a68f2dd71a35ece7c15d56c1

    SHA1

    6ae5c871339901c67f3e2b6faf3350463ff7f065

    SHA256

    5b0a08be2cc3514549d52d4a2c26fa3dafa1aba9f5c40cc2edbd4bf89fee16a2

    SHA512

    07b54d8ee6c798f2d89716d038b8ad3c6110862e2e868906dbcfdbe334d1d8fde3a519309231c635b4c75544fac18ad87bd0901caf2cb0842741dc90b6f54b1a