Analysis

  • max time kernel
    149s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2022, 15:39

General

  • Target

    UninstallTool.exe

  • Size

    3.8MB

  • MD5

    549cad827392688fef8ca1bcdefb0826

  • SHA1

    0607cd4d03eed12e3f618726c8d1f01f7ebbebde

  • SHA256

    64afe4ed17923ad0b725cf211070917a2f34187fd5c41368613e7f66fa70ea53

  • SHA512

    be1ac10947214e8e74cb4019f833d83123b7761871145114096dae119b9168f6c2befa8d5b93bfee9ec860eeb4b61e6ead6d27772f290a026f2bc52015d9c0e4

  • SSDEEP

    98304:GVc0LpMg4XClaaJxsMws0F7xioOU2baMy2yoh:mdpua/sMBk2Jyoh

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\UninstallTool.exe
    "C:\Users\Admin\AppData\Local\Temp\UninstallTool.exe"
    1⤵
    • Checks computer location settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Users\Admin\AppData\Local\Temp\UninstallToolHelper.exe
      C:\Users\Admin\AppData\Local\Temp\UninstallToolHelper.exe
      2⤵
        PID:260
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 480 -p 616 -ip 616
      1⤵
        PID:1132
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 616 -s 2032
        1⤵
        • Program crash
        PID:3444

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/260-133-0x0000000000400000-0x0000000000474000-memory.dmp

        Filesize

        464KB