Analysis

  • max time kernel
    141s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2024, 03:32

General

  • Target

    8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe

  • Size

    197KB

  • MD5

    1a5d4ac888f4f526f6e1388737f4bbca

  • SHA1

    378f2bc0b012c27928473616acc05b02164266b3

  • SHA256

    8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5

  • SHA512

    637e3f3fca24241c7e4a15a3bd42463a025165e06ad2f26b3c42c5bb0c0ddbe23c669c4d9eb8d10dfd2ca158132457f913dcf916f063e7c352f5f922bd5fdd93

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOz:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXC

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe
    "C:\Users\Admin\AppData\Local\Temp\8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4856
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\857952~1.EXE > nul
      2⤵
        PID:1556
    • C:\Windows\Debug\eiyhost.exe
      C:\Windows\Debug\eiyhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:2836

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\debug\eiyhost.exe

      Filesize

      197KB

      MD5

      437a1d31fbfcf29c353a1b34aa02fc7a

      SHA1

      3cba62c108a7921410147868bde9deb6155dc88d

      SHA256

      88932817c3bdfa06f8af19dfadd1193f69c7754698fa833495253106e26b0c19

      SHA512

      6b88318a9274f82730a9cb2b304df19fcaa74b74a44f37e73b5040a9331217b630f0054b706e59e8051675505e5faf008e1930625d586d4e875ef3683a5dd016