Analysis

  • max time kernel
    158s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:48

General

  • Target

    0c9dff02a3d5bbd7d5f8d6883dac27c60f39b77a2af224507f310f4789a624c7.exe

  • Size

    150KB

  • MD5

    b1cb8c1cf0374a3997bd5a99c54891ff

  • SHA1

    1298a43b92020b73b99431dcbc925097ecf37bdf

  • SHA256

    0c9dff02a3d5bbd7d5f8d6883dac27c60f39b77a2af224507f310f4789a624c7

  • SHA512

    a46d0f60fed52e98f987e5abce70ab81b4e63996edaa55929ae3aba97305fa7859663ec556ba0f096249ee40d5b7d6258a454d5ae45fbc6b05f8f9274cc49d7a

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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 51 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\0c9dff02a3d5bbd7d5f8d6883dac27c60f39b77a2af224507f310f4789a624c7.exe
    "C:\Users\Admin\AppData\Local\Temp\0c9dff02a3d5bbd7d5f8d6883dac27c60f39b77a2af224507f310f4789a624c7.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:444
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c9dff02a3d5bbd7d5f8d6883dac27c60f39b77a2af224507f310f4789a624c7.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3364
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3052
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1756
  • 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:780
  • 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:3824

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    2e005f238fd83f47017181f2cde0dd34

    SHA1

    cabbd4d772f3f9ea4eedc9109807f4840cf3a83b

    SHA256

    161f8ba1db0687fca3996803dac3f8fccab9705207683e372736b4d25e31adc1

    SHA512

    7db23da357aa141b8703deef236a70f87595c538e9ea8514af51d1a5c16e9068ad7e45c256cbddc5dcd92e5347779a5574a93c05a59c7b88cb871f5f640cc4f2

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

    MD5

    2e005f238fd83f47017181f2cde0dd34

    SHA1

    cabbd4d772f3f9ea4eedc9109807f4840cf3a83b

    SHA256

    161f8ba1db0687fca3996803dac3f8fccab9705207683e372736b4d25e31adc1

    SHA512

    7db23da357aa141b8703deef236a70f87595c538e9ea8514af51d1a5c16e9068ad7e45c256cbddc5dcd92e5347779a5574a93c05a59c7b88cb871f5f640cc4f2