Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-05-2024 07:40

General

  • Target

    $PLUGINSDIR/TTKInsAssistant.dll

  • Size

    525KB

  • MD5

    fb68e5c27265be945468aae0828c0831

  • SHA1

    c386266e6755273bf69e45072b55afe5bfec2947

  • SHA256

    3e2a5aec6416ac6c1a597240203c11cfad7eecf9dc7dfb5584ebeb590dead6c4

  • SHA512

    eda06d197ce8520c11bc8da118a729064843b1b28ffb90083be61b33b4f62516415a80d3edc5b42b85de364a28b7f24894bb9971af0b3baff7b1365e1bbb9b78

  • SSDEEP

    12288:/D/KJSIl0maioxr//nXHFM6PcBA4H3zxXA:IJamIFrqhHjhA

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\TTKInsAssistant.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\TTKInsAssistant.dll,#1
      2⤵
        PID:4292
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 744
          3⤵
          • Program crash
          PID:3312
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4292 -ip 4292
      1⤵
        PID:1648

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads