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Analysis

  • max time kernel
    163s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03/05/2022, 12:17

General

  • Target

    yhrtfweadqwa.exe

  • Size

    4.0MB

  • MD5

    9e5ab0afc9796bbed8ca5a2f683aae01

  • SHA1

    7063aaa1901e0ae659c32d33b866684d8282b0d7

  • SHA256

    648e092b2cea4d5640f151203911536056abcb6a16d0de391528e9bd8842b940

  • SHA512

    7e00d93ad0b2c54e2a6a86eec37bf654c580ecd68804fa3275fe3072db8eb9ecdcf06c4e01ac74907a631427a418c3a4160625c659fa5615c9ef47052a3dbf30

Malware Config

Signatures

  • LoaderBot

    LoaderBot is a loader written in .NET downloading and executing miners.

  • suricata: ET MALWARE CerberTear Ransomware CnC Checkin

    suricata: ET MALWARE CerberTear Ransomware CnC Checkin

  • LoaderBot executable 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yhrtfweadqwa.exe
    "C:\Users\Admin\AppData\Local\Temp\yhrtfweadqwa.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3356
    • C:\Users\Public\Videos\memory_inject.exe
      "C:\Users\Public\Videos\memory_inject.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe
        "C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe" -o pool.supportxmr.com:3333 -u 45XQiu9A9vmVd5Cy6X35M12NocUr2Hx69X4ZNNu2BsKJYkdksefg2gXJyvBUeEJyDWTfLD6GWmAu4Tab1w4tycfcFMqy8yH -p x -k -v=0 --donate-level=1 -t 1
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4744
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 4744 -s 764
          4⤵
          • Program crash
          PID:4820
      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe
        "C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe" -o pool.supportxmr.com:3333 -u 45XQiu9A9vmVd5Cy6X35M12NocUr2Hx69X4ZNNu2BsKJYkdksefg2gXJyvBUeEJyDWTfLD6GWmAu4Tab1w4tycfcFMqy8yH -p x -k -v=0 --donate-level=1 -t 1
        3⤵
        • Executes dropped EXE
        PID:3448
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3448 -s 564
          4⤵
          • Program crash
          PID:208
      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe
        "C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe" -o pool.supportxmr.com:3333 -u 45XQiu9A9vmVd5Cy6X35M12NocUr2Hx69X4ZNNu2BsKJYkdksefg2gXJyvBUeEJyDWTfLD6GWmAu4Tab1w4tycfcFMqy8yH -p x -k -v=0 --donate-level=1 -t 1
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4440
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 456 -p 4744 -ip 4744
    1⤵
      PID:3704
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 452 -p 3448 -ip 3448
      1⤵
        PID:4692

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe

        Filesize

        3.9MB

        MD5

        02569a7a91a71133d4a1023bf32aa6f4

        SHA1

        0f16bcb3f3f085d3d3be912195558e9f9680d574

        SHA256

        8d6abba9b216172cfc64b8802db0d20a1c634c96e1049f451eddba2363966bf0

        SHA512

        534be1fe93ee556a14cfd8fad5377f57fb056ab4cd2bca14e4f376f4a25d3d4d270917d68a90b3c40d8a8daaeba6f592fa095ecff478332ba23405d1df728322

      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe

        Filesize

        3.9MB

        MD5

        02569a7a91a71133d4a1023bf32aa6f4

        SHA1

        0f16bcb3f3f085d3d3be912195558e9f9680d574

        SHA256

        8d6abba9b216172cfc64b8802db0d20a1c634c96e1049f451eddba2363966bf0

        SHA512

        534be1fe93ee556a14cfd8fad5377f57fb056ab4cd2bca14e4f376f4a25d3d4d270917d68a90b3c40d8a8daaeba6f592fa095ecff478332ba23405d1df728322

      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe

        Filesize

        3.9MB

        MD5

        02569a7a91a71133d4a1023bf32aa6f4

        SHA1

        0f16bcb3f3f085d3d3be912195558e9f9680d574

        SHA256

        8d6abba9b216172cfc64b8802db0d20a1c634c96e1049f451eddba2363966bf0

        SHA512

        534be1fe93ee556a14cfd8fad5377f57fb056ab4cd2bca14e4f376f4a25d3d4d270917d68a90b3c40d8a8daaeba6f592fa095ecff478332ba23405d1df728322

      • C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe

        Filesize

        3.9MB

        MD5

        02569a7a91a71133d4a1023bf32aa6f4

        SHA1

        0f16bcb3f3f085d3d3be912195558e9f9680d574

        SHA256

        8d6abba9b216172cfc64b8802db0d20a1c634c96e1049f451eddba2363966bf0

        SHA512

        534be1fe93ee556a14cfd8fad5377f57fb056ab4cd2bca14e4f376f4a25d3d4d270917d68a90b3c40d8a8daaeba6f592fa095ecff478332ba23405d1df728322

      • C:\Users\Public\Videos\memory_inject.exe

        Filesize

        4.0MB

        MD5

        5c7bc4cc56f6e6acb801210bc6eda798

        SHA1

        541b6f50091fdc17c2bc8d596c0e202b854fb991

        SHA256

        48f66e13c00038bb2ec12a58bd34cb79f2cf616230c25224c68b81d6c3d7ebf9

        SHA512

        66558bf8679c264c507a1fb8da2fd81347b339d3786487895f902330d63bf9b44be5a136061b0848801b768fea3e525b934d1b04c2cef959cc878b421c6cbd5d

      • C:\Users\Public\Videos\memory_inject.exe

        Filesize

        4.0MB

        MD5

        5c7bc4cc56f6e6acb801210bc6eda798

        SHA1

        541b6f50091fdc17c2bc8d596c0e202b854fb991

        SHA256

        48f66e13c00038bb2ec12a58bd34cb79f2cf616230c25224c68b81d6c3d7ebf9

        SHA512

        66558bf8679c264c507a1fb8da2fd81347b339d3786487895f902330d63bf9b44be5a136061b0848801b768fea3e525b934d1b04c2cef959cc878b421c6cbd5d

      • memory/1312-133-0x0000000000120000-0x0000000000520000-memory.dmp

        Filesize

        4.0MB

      • memory/1312-134-0x00000000051D0000-0x0000000005236000-memory.dmp

        Filesize

        408KB

      • memory/4440-145-0x0000000001F80000-0x0000000001FA0000-memory.dmp

        Filesize

        128KB

      • memory/4440-146-0x0000000012DF0000-0x0000000012E10000-memory.dmp

        Filesize

        128KB

      • memory/4744-138-0x00000000001D0000-0x00000000001E4000-memory.dmp

        Filesize

        80KB