Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-03-2024 01:08

General

  • Target

    Email-Worm/Merkur.exe

  • Size

    44KB

  • MD5

    e6f8f701d646b193139cf0a92229455f

  • SHA1

    b7747d41fcf52c3611af1153e46183dacbb3c709

  • SHA256

    7e89fabfdbe214bf6a6f9730f3e451e69f752b62bbd54c0a81d2aae2320abd2c

  • SHA512

    135d69ed4b3acdeaf45639090cefd48fa02f9ff1fb168d249717d0e2d3295530b697d8ff3fea84fa20a66aeb99437e5b0f2a2c3936f2a109c1068816263003ae

  • SSDEEP

    384:/T16PQm7lU7lnDSLOwglunEuMhlkW3YpCzkVei7kVrcwh8PDM9TkLJI4WvEfbqgJ:/hdmCJq1glWlOEDvEo2k/2w/mo

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Drops file in Windows directory 7 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Email-Worm\Merkur.exe
    "C:\Users\Admin\AppData\Local\Temp\Email-Worm\Merkur.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\SysWOW64\regedit.exe
      regedit /s c:\Windows\system32\regme.reg
      2⤵
      • Runs .reg file with regedit
      PID:3328
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\pr0n.bat
      2⤵
        PID:4500

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Windows\System\AVupdate.exe

      Filesize

      44KB

      MD5

      e6f8f701d646b193139cf0a92229455f

      SHA1

      b7747d41fcf52c3611af1153e46183dacbb3c709

      SHA256

      7e89fabfdbe214bf6a6f9730f3e451e69f752b62bbd54c0a81d2aae2320abd2c

      SHA512

      135d69ed4b3acdeaf45639090cefd48fa02f9ff1fb168d249717d0e2d3295530b697d8ff3fea84fa20a66aeb99437e5b0f2a2c3936f2a109c1068816263003ae

    • \??\c:\Windows\SysWOW64\regme.reg

      Filesize

      126B

      MD5

      1065f6f41c70e40297555b6d1878e823

      SHA1

      18b6b3b6da306b12c7b1f197d6242d2f66703023

      SHA256

      ab59535ddcea09a82c549ab4f72e0459cc57e41f5b887c42afde0a1dc1ae9947

      SHA512

      25aac67f601ad21878bd0c92bec8e68433dbdb05621f74d5d23c0b0db1960313e695ce6082abaa82e7ab922323e1fbdd0f9a484ae2cf01abecf431cb4bee5ea8