Analysis

  • max time kernel
    13s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    28-05-2021 09:57

General

  • Target

    5026eddb6f757aba5701d674a948372f2436756ee6a72c95228801a782f649cd.bin.sample.exe

  • Size

    175KB

  • MD5

    da09586ba925a20faa4a2879697c9238

  • SHA1

    ab6ca1d039ac2d54a811486d731ebf94ad61bf47

  • SHA256

    5026eddb6f757aba5701d674a948372f2436756ee6a72c95228801a782f649cd

  • SHA512

    80f8b6a17fe17192244a223c8b6618b70a19e8bd0cb5179b1b058c455e36c32f53c2e7402e25144e3bbb800c56ef0ad2ac6a363c4d1615ff1ea84a0c1ab371e1

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5026eddb6f757aba5701d674a948372f2436756ee6a72c95228801a782f649cd.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\5026eddb6f757aba5701d674a948372f2436756ee6a72c95228801a782f649cd.bin.sample.exe"
    1⤵
    • Windows security modification
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Windows\system32\reg.exe
      "reg.exe" delete HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\WinDefend /f
      2⤵
      • Modifies registry key
      PID:1156
    • C:\Windows\system32\bcdedit.exe
      "bcdedit.exe" /set {default} safeboot network
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:1988
    • C:\Windows\system32\reg.exe
      "reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Userinit /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\5026eddb6f757aba5701d674a948372f2436756ee6a72c95228801a782f649cd.bin.sample.exe","C:\Windows\system32\userinit.exe" /f
      2⤵
      • Modifies WinLogon for persistence
      PID:1940
    • C:\Windows\system32\net.exe
      "net.exe" user Admin ""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\system32\net1.exe
        C:\Windows\system32\net1 user Admin ""
        3⤵
          PID:1688
      • C:\Windows\system32\shutdown.exe
        "shutdown.exe" /r /t 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1732
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        2⤵
          PID:992
      • C:\Windows\system32\LogonUI.exe
        "LogonUI.exe" /flags:0x0
        1⤵
          PID:1204

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/992-70-0x0000000000000000-mapping.dmp

        • memory/1052-60-0x00000000012D0000-0x00000000012D1000-memory.dmp

          Filesize

          4KB

        • memory/1052-68-0x000000001AA00000-0x000000001AA02000-memory.dmp

          Filesize

          8KB

        • memory/1156-62-0x0000000000000000-mapping.dmp

        • memory/1204-69-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

          Filesize

          8KB

        • memory/1204-71-0x00000000027C0000-0x00000000027C1000-memory.dmp

          Filesize

          4KB

        • memory/1344-65-0x0000000000000000-mapping.dmp

        • memory/1688-67-0x0000000000000000-mapping.dmp

        • memory/1732-66-0x0000000000000000-mapping.dmp

        • memory/1940-64-0x0000000000000000-mapping.dmp

        • memory/1988-63-0x0000000000000000-mapping.dmp