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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/03/2024, 14:11

General

  • Target

    b253fe41b9c0ed7fbe3a8e2f38bcd864.exe

  • Size

    108KB

  • MD5

    b253fe41b9c0ed7fbe3a8e2f38bcd864

  • SHA1

    840a9a95fb366ef1ca19760d2b12c8937cedf416

  • SHA256

    73e506879a2d33b72c2dce161ff27fef46fc753d9a2dfc5590df3282bfc73ee0

  • SHA512

    9ccd560927ef21dba09cdd0d35c7f01146e3377dfb9afdfff18fa33c0a136bd0e7ad0b787a1d451d1afa85fda1bb7c1bb95b1800a22732e96a1ee8f5f4387bb7

  • SSDEEP

    768:MyV+hOvI80wziAgjzIWi3KEyUhL7b7Yqlf4JwQltjmtTBHi7Alz:MoFvJ/Y876Ezh/vYlJwAitTB3lz

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b253fe41b9c0ed7fbe3a8e2f38bcd864.exe
    "C:\Users\Admin\AppData\Local\Temp\b253fe41b9c0ed7fbe3a8e2f38bcd864.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Users\Admin\zeune.exe
      "C:\Users\Admin\zeune.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:2020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 1636
      2⤵
      • Program crash
      PID:3348
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2648 -ip 2648
    1⤵
      PID:1320

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\zeune.exe

      Filesize

      108KB

      MD5

      e03aef1441b64035edb75d5e5256a67e

      SHA1

      91561c97218ebfafa1ac9742627114e8098c3b51

      SHA256

      d06a9a4938d893d200f24f418460a9a7f057496f8ae1e85fbc205874d2fbd455

      SHA512

      6ba29f9c64cf8faa82fd50224fa078ded9c4357064fe392b0cbb3f56b2deea6e5d6952858fc76cf5648ef0b647439eb5a34774b2ff349816fdf7de4f39c04b3d

    • memory/2020-33-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2020-38-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2648-0-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2648-37-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB