Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2022 03:14

General

  • Target

    e800c05d81390339b5b69ece3a1e5daf96f3f446c7618ad9e0521bb0bf00a91e.exe

  • Size

    304KB

  • MD5

    776fba199e8255de8fd7f53c364b9543

  • SHA1

    122ce79918fbb16b37bfb6d5456e066b4994d64c

  • SHA256

    e800c05d81390339b5b69ece3a1e5daf96f3f446c7618ad9e0521bb0bf00a91e

  • SHA512

    462aa9d47dab09eacf9e71cb946fdb9a3cf435bf899b432076c666bedfbda506d1d109e0a5081d0fd3cc6247ce0c439c4daf9162e8283c0a56c4c3af8de1112a

  • SSDEEP

    6144:XdYaKl/9f8AbGcdeoDW+/OWtb9yOPmeAVbfP1r4riA7AroW+nYaFyzf/H551Fjmr:X6x/9UtO2TW00UM5AEPoViJAndeyCp

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 55 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\e800c05d81390339b5b69ece3a1e5daf96f3f446c7618ad9e0521bb0bf00a91e.exe
    "C:\Users\Admin\AppData\Local\Temp\e800c05d81390339b5b69ece3a1e5daf96f3f446c7618ad9e0521bb0bf00a91e.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:4252
    • C:\Users\Admin\saovoi.exe
      "C:\Users\Admin\saovoi.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:220

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\saovoi.exe

    Filesize

    304KB

    MD5

    da520d3e0bab88a4fc2eee702571d0d0

    SHA1

    1f6d59e301e29e628884047bc1084dbd5377c4fc

    SHA256

    254d6c14aec7e8b1e3214134ebb6a094d1e67bb53218729edd616828e33153c2

    SHA512

    11336dead0267688992186340c1cfb7e7b5a8badd9460f0b47d3a0c8b6c2e6a6829f630ba7e45b74a4afa1ba9a85318a34a5f87c6b84c110bca3316414462602

  • C:\Users\Admin\saovoi.exe

    Filesize

    304KB

    MD5

    da520d3e0bab88a4fc2eee702571d0d0

    SHA1

    1f6d59e301e29e628884047bc1084dbd5377c4fc

    SHA256

    254d6c14aec7e8b1e3214134ebb6a094d1e67bb53218729edd616828e33153c2

    SHA512

    11336dead0267688992186340c1cfb7e7b5a8badd9460f0b47d3a0c8b6c2e6a6829f630ba7e45b74a4afa1ba9a85318a34a5f87c6b84c110bca3316414462602

  • memory/220-134-0x0000000000000000-mapping.dmp