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Analysis

  • max time kernel
    186s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 00:00

General

  • Target

    9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe

  • Size

    336KB

  • MD5

    472415f5fa15d1c6e8584864a625bd90

  • SHA1

    787f9d20666e1cee11f8b05e764cb9ff8703dabf

  • SHA256

    9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641

  • SHA512

    77234a013b41e239d7b6ce407b7561b2aee5b76fc62b79675b9b4888e153c4eeee9174b7bc0deab59471a6fb60e3ab90502a753625772e6361ea88440ebb4c1a

  • SSDEEP

    6144:IYXkpYGCleWt3LFCmwg1HGTs7mObLLWtXi3TqWy:Ijd+mTs7lLLuXik

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\9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe
    "C:\Users\Admin\AppData\Local\Temp\9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.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:1944
    • C:\Users\Admin\kiusi.exe
      "C:\Users\Admin\kiusi.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:4928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\kiusi.exe

    Filesize

    336KB

    MD5

    91544d29f190410665d00339097256d3

    SHA1

    9822754b846e1072f669cd082c367af57edefd42

    SHA256

    c3775a88446bc72be41eb14945c204ca0c502aa048dac69df2ca660dfb589f4d

    SHA512

    26e0ae2e87e7f076ed308f8c39e50ac580c7240a08ced1354fe93cd8ab848dd2f7acb85149ee850bdc5829331b1281a2d5927ff93cff94da05f362c38e80bfd5

  • C:\Users\Admin\kiusi.exe

    Filesize

    336KB

    MD5

    91544d29f190410665d00339097256d3

    SHA1

    9822754b846e1072f669cd082c367af57edefd42

    SHA256

    c3775a88446bc72be41eb14945c204ca0c502aa048dac69df2ca660dfb589f4d

    SHA512

    26e0ae2e87e7f076ed308f8c39e50ac580c7240a08ced1354fe93cd8ab848dd2f7acb85149ee850bdc5829331b1281a2d5927ff93cff94da05f362c38e80bfd5