Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-10-2022 12:20

General

  • Target

    c9c5a0b7482c1f291040d63f1cfc936a14d039fcc0e754d52cd3cb038c4d70e4.exe

  • Size

    492KB

  • MD5

    5b93fe3d2c36cf6a97d1c084ead52f51

  • SHA1

    29821721fbb3c5a08ce62d4fa363c13e4a92302a

  • SHA256

    c9c5a0b7482c1f291040d63f1cfc936a14d039fcc0e754d52cd3cb038c4d70e4

  • SHA512

    6644803c06b75dfeb5de538ae136a7e0d4a7e1e2da10c88639b16840cfc8f67c7c989ab2bd3f37e37bce2a223e09251946dc43a1f85e238bd6584f8b3ab2c24b

  • SSDEEP

    12288:ZfG0jdhRpfWThnjhrHI2OmeIQcRVn0h2++:Q05pWVNYebnr

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9c5a0b7482c1f291040d63f1cfc936a14d039fcc0e754d52cd3cb038c4d70e4.exe
    "C:\Users\Admin\AppData\Local\Temp\c9c5a0b7482c1f291040d63f1cfc936a14d039fcc0e754d52cd3cb038c4d70e4.exe"
    1⤵
    • Modifies extensions of user files
    • Checks computer location settings
    • Drops startup file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3420
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "vssadmin delete shadows /all /quiet"
      2⤵
        PID:3860
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "wbadmin DELETE SYSTEMSTATEBACKUP -keepVersions:0"
        2⤵
          PID:3828
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "wbadmin DELETE BACKUP -keepVersions:0"
          2⤵
            PID:3160
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c "wmic SHADOWCOPY DELETE"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1720
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic SHADOWCOPY DELETE
              3⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1968
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c "bcdedit /set {default} recoveryenabled No"
            2⤵
              PID:448
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c "bcdedit /set {default} bootstatuspolicy ignoreallfailures"
              2⤵
                PID:4856
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4064

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads