Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 03:10

General

  • Target

    WinThruster/unins000.exe

  • Size

    3.1MB

  • MD5

    b0e00a066ca1d50cd7e20e89ae392070

  • SHA1

    ca272060ab5cce765849e482f663d2d6d14cb8e9

  • SHA256

    23ac412357b91ca18622d1e10762ef4aa6f056711bafd01f7ee5b989a2d1f599

  • SHA512

    507026af984db33ab06477d17634bf9eb120c340e02049a9908380d175a77051e4c483f605b1015eea5f15a8808ab9b477f2e76f834272c346d0abb535e756ee

  • SSDEEP

    49152:aEA9P+bz2cHPcUb6HSb4SOEMkBeH7nQckO6bAGx7jXTVM3338O:q92bz2Eb6pd7B6bAGx7C333T

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WinThruster\unins000.exe
    "C:\Users\Admin\AppData\Local\Temp\WinThruster\unins000.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4456
    • C:\Users\Admin\AppData\Local\Temp\_iu14D2N.tmp
      "C:\Users\Admin\AppData\Local\Temp\_iu14D2N.tmp" /SECONDPHASE="C:\Users\Admin\AppData\Local\Temp\WinThruster\unins000.exe" /FIRSTPHASEWND=$900DE
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:904
      • C:\Windows\SysWOW64\Schtasks.exe
        "Schtasks" /Delete /TN "WinThruster automatic scan and notifications" /F
        3⤵
          PID:4472

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\_iu14D2N.tmp
      Filesize

      3.1MB

      MD5

      b0e00a066ca1d50cd7e20e89ae392070

      SHA1

      ca272060ab5cce765849e482f663d2d6d14cb8e9

      SHA256

      23ac412357b91ca18622d1e10762ef4aa6f056711bafd01f7ee5b989a2d1f599

      SHA512

      507026af984db33ab06477d17634bf9eb120c340e02049a9908380d175a77051e4c483f605b1015eea5f15a8808ab9b477f2e76f834272c346d0abb535e756ee

    • memory/904-6-0x0000000000C80000-0x0000000000C81000-memory.dmp
      Filesize

      4KB

    • memory/904-9-0x0000000000400000-0x000000000071D000-memory.dmp
      Filesize

      3.1MB

    • memory/904-11-0x0000000000400000-0x000000000071D000-memory.dmp
      Filesize

      3.1MB

    • memory/4456-0-0x0000000000D30000-0x0000000000D31000-memory.dmp
      Filesize

      4KB

    • memory/4456-8-0x0000000000400000-0x000000000071D000-memory.dmp
      Filesize

      3.1MB