Analysis

  • max time kernel
    172s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:17

General

  • Target

    133272a3e13dd3e9c0a6f0a8ebeb3406f7f7cc3a109bf78649115f7639779375.exe

  • Size

    216KB

  • MD5

    15adc4f9b1b0424094ef4c7f925fd4b0

  • SHA1

    5e189f298d436a497baf8ecfd78ef83630860609

  • SHA256

    133272a3e13dd3e9c0a6f0a8ebeb3406f7f7cc3a109bf78649115f7639779375

  • SHA512

    93d6063cdc0114ce1e532d185c257a07949d563922656d38abb258ab539dd757d497442d2ab620827ee01bf2c5e4a15c8148158f8ae037bafd3e5a825ba0dafc

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 49 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\133272a3e13dd3e9c0a6f0a8ebeb3406f7f7cc3a109bf78649115f7639779375.exe
    "C:\Users\Admin\AppData\Local\Temp\133272a3e13dd3e9c0a6f0a8ebeb3406f7f7cc3a109bf78649115f7639779375.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\133272a3e13dd3e9c0a6f0a8ebeb3406f7f7cc3a109bf78649115f7639779375.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3888
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4064
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2472
  • 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:2064
  • 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:4020

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    9e53b7aa705647818b07ed15ef8aa6a4

    SHA1

    8018569c8b0121b38c150bda93756dee0319c523

    SHA256

    d5e466533d71f2f7902aa15a1d01c02b2ff5a7d63ff3ca6c8e798e0c09d43df0

    SHA512

    44b77a7bf622e243b0ca7913424138f402c3ab28e758b9461fa18d8189a047b8f55b6eacc8b8d2f8d7b06384b35b953c7816a8090ccd15fd755698ff74209eb3

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

    MD5

    9e53b7aa705647818b07ed15ef8aa6a4

    SHA1

    8018569c8b0121b38c150bda93756dee0319c523

    SHA256

    d5e466533d71f2f7902aa15a1d01c02b2ff5a7d63ff3ca6c8e798e0c09d43df0

    SHA512

    44b77a7bf622e243b0ca7913424138f402c3ab28e758b9461fa18d8189a047b8f55b6eacc8b8d2f8d7b06384b35b953c7816a8090ccd15fd755698ff74209eb3

  • memory/2788-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2968-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB