Analysis

  • max time kernel
    62s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2022 00:38

General

  • Target

    5cd98524e53eac6e26afe790dcf3b3b59b5195831e7859f1046de2b320bf57dd.exe

  • Size

    7.9MB

  • MD5

    3385491944f44bb09eb674c92a75eb7c

  • SHA1

    6b9491c27147fb603451ddfbfa57f0e3085e6bcb

  • SHA256

    5cd98524e53eac6e26afe790dcf3b3b59b5195831e7859f1046de2b320bf57dd

  • SHA512

    caed1d53fff7a8895d765ae708123464eb7a9cf97094de21854cb4f0a3773ff9e4965020849e2cc247457f1b2c952453f90fe041de2aac9b87dd27840a46adb2

  • SSDEEP

    196608:LfUD4Ct99c1eCbvSCbwDvK8uUzrWsjnDRzoS:Lfi4M9O1eavSCEDS8uUhLDR0S

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 8 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cd98524e53eac6e26afe790dcf3b3b59b5195831e7859f1046de2b320bf57dd.exe
    "C:\Users\Admin\AppData\Local\Temp\5cd98524e53eac6e26afe790dcf3b3b59b5195831e7859f1046de2b320bf57dd.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
          PID:760
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\svchost .exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\SysWOW64\at.exe
          AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\svchost .exe
          3⤵
            PID:1640

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/760-56-0x0000000000000000-mapping.dmp

      • memory/1068-55-0x0000000000000000-mapping.dmp

      • memory/1304-58-0x0000000000000000-mapping.dmp

      • memory/1640-59-0x0000000000000000-mapping.dmp

      • memory/1816-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

        Filesize

        8KB

      • memory/1816-60-0x0000000000400000-0x0000000000BF75FC-memory.dmp

        Filesize

        8.0MB

      • memory/1816-62-0x0000000000400000-0x0000000000BF75FC-memory.dmp

        Filesize

        8.0MB