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Analysis

  • max time kernel
    166s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 00:27

General

  • Target

    a391bb08599272bd16b725a56744f40f61bfa7663d76d400f2406487bc259348.exe

  • Size

    164KB

  • MD5

    6e39e2dc76fa82b23954eae4c9aa7b90

  • SHA1

    db974627cd29cf26fd4c8b7ea3421a9af62c00c6

  • SHA256

    a391bb08599272bd16b725a56744f40f61bfa7663d76d400f2406487bc259348

  • SHA512

    040e26945e65fc9e47c9ff2b2113c0f4b3542cdb5a6cc6096519bb4876bcdf2864cdb99a89f3a62df78dd829391f2d1b54927528906ad201704492084d0c46f0

  • SSDEEP

    3072:hsUaAUANtoYj3Bc8T828UAw1XiazCgaN8L2YAgt4oQZiEZ9:gAxoaxc8Y28I1XiUq8sg/Wd

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 54 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\a391bb08599272bd16b725a56744f40f61bfa7663d76d400f2406487bc259348.exe
    "C:\Users\Admin\AppData\Local\Temp\a391bb08599272bd16b725a56744f40f61bfa7663d76d400f2406487bc259348.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:4772
    • C:\Users\Admin\ciaaze.exe
      "C:\Users\Admin\ciaaze.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:4892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\ciaaze.exe

    Filesize

    164KB

    MD5

    7ba7a09365dbc2a705c2acc541f77e46

    SHA1

    ce012274bb9de5e8b92a254a48f3183c0cdb1100

    SHA256

    051f16ff0ee4af61639b2aca86ef5be37ac9784ed0891e2611b1c40b0f7f3151

    SHA512

    8f86f4250c99712f05f5a7595d9c05870601e39805410a1169f5519c740b85bb03e71ef0e872d314d93c865f40017f00a58b24a6816181ff343210c583e8b117

  • C:\Users\Admin\ciaaze.exe

    Filesize

    164KB

    MD5

    7ba7a09365dbc2a705c2acc541f77e46

    SHA1

    ce012274bb9de5e8b92a254a48f3183c0cdb1100

    SHA256

    051f16ff0ee4af61639b2aca86ef5be37ac9784ed0891e2611b1c40b0f7f3151

    SHA512

    8f86f4250c99712f05f5a7595d9c05870601e39805410a1169f5519c740b85bb03e71ef0e872d314d93c865f40017f00a58b24a6816181ff343210c583e8b117