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Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2022, 15:39

General

  • Target

    UninstallTool.exe

  • Size

    3.8MB

  • MD5

    c76180b6b59a1b1c259f337a25f081be

  • SHA1

    daaba8d78e6029ff0ed71206c46f577046b99898

  • SHA256

    a05a5632a2b64c0269b1371aa85cf8454de26b21b2d3b035dd7a3bd41e05d744

  • SHA512

    0a8d04e45e5d3495e1d587a06cb77f4865552fa9be2d4628fe741c516b7f8d0405d8c03c041b6b1364dd51660dd5d15c3ee27875eb7814a686e53ee076436338

  • SSDEEP

    98304:lVc0LpMg4XClaaJxsMws0F7xioOU2baMy2yoh:Xdpua/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.

  • Modifies system certificate store 2 TTPs 5 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:4940
    • C:\Users\Admin\AppData\Local\Temp\UninstallToolHelper.exe
      C:\Users\Admin\AppData\Local\Temp\UninstallToolHelper.exe
      2⤵
        PID:4456

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/4456-133-0x0000000000400000-0x0000000000474000-memory.dmp

      Filesize

      464KB