Analysis

  • max time kernel
    179s
  • max time network
    196s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:08

General

  • Target

    0804ddb0949f63423c0bba5d1eef4008c0c995354ddbc0be7b42a84a3077ba99.exe

  • Size

    216KB

  • MD5

    fb6030327e8709c598b822188f1f9766

  • SHA1

    d3da2b879bc8dc259668e497c03b7b6e6cb8a2b2

  • SHA256

    0804ddb0949f63423c0bba5d1eef4008c0c995354ddbc0be7b42a84a3077ba99

  • SHA512

    88e5ca2001462242d13ece6bafa95e15afb23b692b50ce775e3c27862127dba27643bee7f7e7355b776206ddbce6dcd3223ff3647880cf70c6a3bde5b0d42307

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 50 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0804ddb0949f63423c0bba5d1eef4008c0c995354ddbc0be7b42a84a3077ba99.exe
    "C:\Users\Admin\AppData\Local\Temp\0804ddb0949f63423c0bba5d1eef4008c0c995354ddbc0be7b42a84a3077ba99.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3808
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0804ddb0949f63423c0bba5d1eef4008c0c995354ddbc0be7b42a84a3077ba99.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1552
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3860
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3460
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3724
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4052

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    554501f5cf63bb59b0522b4bd943f16a

    SHA1

    5c2760afc0153ef799d953302345e1b149a5b849

    SHA256

    b0c92ce552ce9dd28c43c5f7bb3695ab3fc3b0e4e7d040c609a39bb453f0fe5e

    SHA512

    e51a82502046e9011eecc8270fb1035000117fec9e26fdad8c49c7fcb96178122dd42742c6d58c1ed2e4a1aeb1ebcebc80ac03c126a2065f91d0e4933137cb4e

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    554501f5cf63bb59b0522b4bd943f16a

    SHA1

    5c2760afc0153ef799d953302345e1b149a5b849

    SHA256

    b0c92ce552ce9dd28c43c5f7bb3695ab3fc3b0e4e7d040c609a39bb453f0fe5e

    SHA512

    e51a82502046e9011eecc8270fb1035000117fec9e26fdad8c49c7fcb96178122dd42742c6d58c1ed2e4a1aeb1ebcebc80ac03c126a2065f91d0e4933137cb4e

  • memory/3032-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/3808-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB