Analysis

  • max time kernel
    154s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 16:28

General

  • Target

    1a70880cfbc6d0086aa9868db1d6a03983101e441d33676bced79064e4cca5a7.exe

  • Size

    268KB

  • MD5

    0bd5f3549ff8f9541a690c8a45cfb826

  • SHA1

    f22727774050e7fd386590b825d150c59f3bfdbc

  • SHA256

    1a70880cfbc6d0086aa9868db1d6a03983101e441d33676bced79064e4cca5a7

  • SHA512

    c28d3966710e20e243fdac1a0da131b6d3abae7fa8e2c98d7d8483ec5de0e040d021f819b95090886ee48c03d78076e3aa8f4297608995cb4c1ef6f53acc07ac

  • SSDEEP

    6144:vfpnHdreWWrsszHVx0RG6J2L3RmvrR4Er75tLZudw8iXny:ZnHdrPW1HVx0RG6Js3erR4Er75tLZudN

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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 53 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a70880cfbc6d0086aa9868db1d6a03983101e441d33676bced79064e4cca5a7.exe
    "C:\Users\Admin\AppData\Local\Temp\1a70880cfbc6d0086aa9868db1d6a03983101e441d33676bced79064e4cca5a7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2732
    • C:\Users\Admin\xiioyuc.exe
      "C:\Users\Admin\xiioyuc.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
      • Suspicious use of WriteProcessMemory
      PID:2816

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xiioyuc.exe

    Filesize

    268KB

    MD5

    3490f9d0584bf24a208d7dad6002903b

    SHA1

    d127da84f66a34195837cca1ff1ac3c26fe21beb

    SHA256

    1f9bb1261a2372c38c5ced5c8bf4d5dbee4c34916625ed058f1b00f8841f0344

    SHA512

    74ca032b27e2dbd9c2cbd30ea816444fc2ae7401ad9070444d41e0878196a70885c26ac398a6cbe7f45160ced8c2d5eeafaa43ad33d21d0ebfa6a24a5ee907d7

  • C:\Users\Admin\xiioyuc.exe

    Filesize

    268KB

    MD5

    3490f9d0584bf24a208d7dad6002903b

    SHA1

    d127da84f66a34195837cca1ff1ac3c26fe21beb

    SHA256

    1f9bb1261a2372c38c5ced5c8bf4d5dbee4c34916625ed058f1b00f8841f0344

    SHA512

    74ca032b27e2dbd9c2cbd30ea816444fc2ae7401ad9070444d41e0878196a70885c26ac398a6cbe7f45160ced8c2d5eeafaa43ad33d21d0ebfa6a24a5ee907d7