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Analysis

  • max time kernel
    162s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07/05/2022, 04:33

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 2 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 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:4156
    • 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:1528
      • 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:4488

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\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/1528-133-0x00000000009F0000-0x0000000000DF0000-memory.dmp

    Filesize

    4.0MB

  • memory/1528-134-0x0000000005CD0000-0x0000000005D36000-memory.dmp

    Filesize

    408KB

  • memory/4488-138-0x00000000001D0000-0x00000000001E4000-memory.dmp

    Filesize

    80KB

  • memory/4488-139-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4488-140-0x0000000000420000-0x0000000000440000-memory.dmp

    Filesize

    128KB