Analysis

  • max time kernel
    141s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 20:39

General

  • Target

    e4e3320c95503384079c9349a7e60c31007cb5bfb683a3d8e37064df95e3b72f.exe

  • Size

    5.9MB

  • MD5

    f98cc1ed7d0f00c066b656c7983a5dc8

  • SHA1

    a068d5a7d098688db0e5305dcddc1c29eb0d258d

  • SHA256

    e4e3320c95503384079c9349a7e60c31007cb5bfb683a3d8e37064df95e3b72f

  • SHA512

    9c63448161b0c1a49944f14015fc1bccf292799660a58090047546eecc66143605d9eb93fb943496a87259f05f55c800caf6653e54c668ee31f416d62f50658d

  • SSDEEP

    98304:zgXN9HVy6ImMQuX9uNw082xdBW3j6YseoBg+cDiD9e7o5PWx/EtsbVfewPpNw7H8:zgXN9q8+0bBWzVB+Gh7o0x/Ets5Wy/Q8

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • Loads dropped DLL 5 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 1 IoCs
  • Program crash 1 IoCs
  • Modifies data under HKEY_USERS 53 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4e3320c95503384079c9349a7e60c31007cb5bfb683a3d8e37064df95e3b72f.exe
    "C:\Users\Admin\AppData\Local\Temp\e4e3320c95503384079c9349a7e60c31007cb5bfb683a3d8e37064df95e3b72f.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 868
      2⤵
      • Program crash
      PID:1936
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv -install
      2⤵
      • Loads dropped DLL
      PID:4720
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4772 -ip 4772
    1⤵
      PID:4312
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv
        2⤵
        • Loads dropped DLL
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:988

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\TrustMix\TrustMix.dll

      Filesize

      4.0MB

      MD5

      b7ea61fa59a8767aa8f31c3e261d0840

      SHA1

      0823fbaa69576056b9680fe3d293204375cce94a

      SHA256

      035495c305719dbfa0297f0b056930df79e74323f4d8b175833f645cdee2271c

      SHA512

      10e17ca8577ed1e01744f470eba4c4c9a9ea442f17ff2faa49f9cd8a35502b26638f5a51ad22a57ad08daed9539eadd7834f313031c7e053d7317f3a50cec7d6

    • C:\Program Files (x86)\TrustMix\TrustMix.dll

      Filesize

      4.0MB

      MD5

      b7ea61fa59a8767aa8f31c3e261d0840

      SHA1

      0823fbaa69576056b9680fe3d293204375cce94a

      SHA256

      035495c305719dbfa0297f0b056930df79e74323f4d8b175833f645cdee2271c

      SHA512

      10e17ca8577ed1e01744f470eba4c4c9a9ea442f17ff2faa49f9cd8a35502b26638f5a51ad22a57ad08daed9539eadd7834f313031c7e053d7317f3a50cec7d6

    • C:\Program Files (x86)\TrustMix\TrustMix.dll

      Filesize

      4.0MB

      MD5

      b7ea61fa59a8767aa8f31c3e261d0840

      SHA1

      0823fbaa69576056b9680fe3d293204375cce94a

      SHA256

      035495c305719dbfa0297f0b056930df79e74323f4d8b175833f645cdee2271c

      SHA512

      10e17ca8577ed1e01744f470eba4c4c9a9ea442f17ff2faa49f9cd8a35502b26638f5a51ad22a57ad08daed9539eadd7834f313031c7e053d7317f3a50cec7d6

    • C:\Program Files (x86)\TrustMix\TrustMix.dll

      Filesize

      4.0MB

      MD5

      b7ea61fa59a8767aa8f31c3e261d0840

      SHA1

      0823fbaa69576056b9680fe3d293204375cce94a

      SHA256

      035495c305719dbfa0297f0b056930df79e74323f4d8b175833f645cdee2271c

      SHA512

      10e17ca8577ed1e01744f470eba4c4c9a9ea442f17ff2faa49f9cd8a35502b26638f5a51ad22a57ad08daed9539eadd7834f313031c7e053d7317f3a50cec7d6

    • C:\Users\Admin\AppData\Local\Temp\tf00294823.dll

      Filesize

      4.0MB

      MD5

      b7ea61fa59a8767aa8f31c3e261d0840

      SHA1

      0823fbaa69576056b9680fe3d293204375cce94a

      SHA256

      035495c305719dbfa0297f0b056930df79e74323f4d8b175833f645cdee2271c

      SHA512

      10e17ca8577ed1e01744f470eba4c4c9a9ea442f17ff2faa49f9cd8a35502b26638f5a51ad22a57ad08daed9539eadd7834f313031c7e053d7317f3a50cec7d6

    • \??\c:\Program Files (x86)\TrustMix\TrustMix.dll

      Filesize

      4.0MB

      MD5

      b7ea61fa59a8767aa8f31c3e261d0840

      SHA1

      0823fbaa69576056b9680fe3d293204375cce94a

      SHA256

      035495c305719dbfa0297f0b056930df79e74323f4d8b175833f645cdee2271c

      SHA512

      10e17ca8577ed1e01744f470eba4c4c9a9ea442f17ff2faa49f9cd8a35502b26638f5a51ad22a57ad08daed9539eadd7834f313031c7e053d7317f3a50cec7d6

    • memory/988-152-0x0000000000000000-mapping.dmp

    • memory/988-154-0x000000007FA00000-0x000000007FD46000-memory.dmp

      Filesize

      3.3MB

    • memory/4720-144-0x0000000000000000-mapping.dmp

    • memory/4720-147-0x000000007F2F0000-0x000000007F636000-memory.dmp

      Filesize

      3.3MB

    • memory/4772-133-0x000000007F660000-0x000000007FB65000-memory.dmp

      Filesize

      5.0MB

    • memory/4772-139-0x000000007F1D0000-0x000000007F516000-memory.dmp

      Filesize

      3.3MB