Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 01:38

General

  • Target

    56cea55f1b3c776895f6fc2097abbd48685b13e120adb1b2f8349405313081bb.exe

  • Size

    261KB

  • MD5

    143f1e1c988be32c56b6f3d8544a4e3c

  • SHA1

    b1f558b4b7c77e934ab9bb3257f5256457ca43ae

  • SHA256

    56cea55f1b3c776895f6fc2097abbd48685b13e120adb1b2f8349405313081bb

  • SHA512

    97892c773e998253277a0a388665d8c84cac6e9d4f487b7b84e06b488112e288638d91721079ca6321491562534c54671ce8369e63ad8c5fe80a9d461a80090e

Malware Config

Signatures

  • suricata: ET MALWARE Ransomware/Cerber Checkin 2

    suricata: ET MALWARE Ransomware/Cerber Checkin 2

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Contacts a large (525) amount of remote hosts 1 TTPs

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

  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\56cea55f1b3c776895f6fc2097abbd48685b13e120adb1b2f8349405313081bb.exe
    "C:\Users\Admin\AppData\Local\Temp\56cea55f1b3c776895f6fc2097abbd48685b13e120adb1b2f8349405313081bb.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Users\Admin\AppData\Local\Temp\56cea55f1b3c776895f6fc2097abbd48685b13e120adb1b2f8349405313081bb.exe
      "C:\Users\Admin\AppData\Local\Temp\56cea55f1b3c776895f6fc2097abbd48685b13e120adb1b2f8349405313081bb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3808
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1564
        • C:\Windows\system32\wbem\WMIC.exe
          C:\Windows\system32\wbem\wmic.exe shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1668
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1592

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsoB859.tmp\System.dll

    Filesize

    11KB

    MD5

    a436db0c473a087eb61ff5c53c34ba27

    SHA1

    65ea67e424e75f5065132b539c8b2eda88aa0506

    SHA256

    75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

    SHA512

    908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

  • C:\Users\Admin\AppData\Local\Temp\nsoB859.tmp\System.dll

    Filesize

    11KB

    MD5

    a436db0c473a087eb61ff5c53c34ba27

    SHA1

    65ea67e424e75f5065132b539c8b2eda88aa0506

    SHA256

    75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

    SHA512

    908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

  • C:\Users\Admin\AppData\Roaming\HelpButton.dll

    Filesize

    44KB

    MD5

    ffeedeecd5f9a12c939c85c156363a90

    SHA1

    567c056b8ab705b8a6c36f82edf8f2762f095799

    SHA256

    aedc72bb46231c69e1347d161b4a0f0b9c484bb9194a652ba25860dde7d9dc0e

    SHA512

    9bd6a4664e344a196d42675ba3ef11bc12799f37f0b0b975e165f63f60579e74880df9dc3895a250add32a1389ce1abd284b325b8fe183f3327d7f7cb995355d

  • C:\Users\Admin\AppData\Roaming\HelpButton.dll

    Filesize

    44KB

    MD5

    ffeedeecd5f9a12c939c85c156363a90

    SHA1

    567c056b8ab705b8a6c36f82edf8f2762f095799

    SHA256

    aedc72bb46231c69e1347d161b4a0f0b9c484bb9194a652ba25860dde7d9dc0e

    SHA512

    9bd6a4664e344a196d42675ba3ef11bc12799f37f0b0b975e165f63f60579e74880df9dc3895a250add32a1389ce1abd284b325b8fe183f3327d7f7cb995355d

  • memory/740-134-0x0000000002290000-0x000000000229B000-memory.dmp

    Filesize

    44KB

  • memory/1564-141-0x0000000000000000-mapping.dmp

  • memory/1668-142-0x0000000000000000-mapping.dmp

  • memory/3808-135-0x0000000000000000-mapping.dmp

  • memory/3808-136-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB

  • memory/3808-138-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB

  • memory/3808-139-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB

  • memory/3808-140-0x0000000000400000-0x0000000000431000-memory.dmp

    Filesize

    196KB