Analysis

  • max time kernel
    162s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:41

General

  • Target

    0f4c9d536f04fcfdd4b52efec58ab507112793b13774403857aa6d099fc44d33.exe

  • Size

    36KB

  • MD5

    8b9b41cd2c6a91497993088f4236fed1

  • SHA1

    87ca80e5c21c9de5edde73c535b5e4a8e13c2ee3

  • SHA256

    0f4c9d536f04fcfdd4b52efec58ab507112793b13774403857aa6d099fc44d33

  • SHA512

    3722e4b5549528882f11b2a5397c27c094b4ab400bc0d2c3b7c1b5ce8c987e48d958dc65f6b4727f3993a1a79630bbad77b6e7b7d3651a88c64a03028d374eea

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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\0f4c9d536f04fcfdd4b52efec58ab507112793b13774403857aa6d099fc44d33.exe
    "C:\Users\Admin\AppData\Local\Temp\0f4c9d536f04fcfdd4b52efec58ab507112793b13774403857aa6d099fc44d33.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3200
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f4c9d536f04fcfdd4b52efec58ab507112793b13774403857aa6d099fc44d33.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3416
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3680
  • 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:3312
  • 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:2912

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    bcb67bc61e12cec734097fbd2daba4d2

    SHA1

    bf54797534b252f80ee8e81c2620871b2785c1e8

    SHA256

    3b9a63423474280c5c4b223ee7ee619ef8cce8787abd54c600973f2c694365e5

    SHA512

    cd72d9b20c5bcef6c978595caa35654a6d4c54ccf3bfce962eb6e59c198a9c65a125adbd9ec1f6d64bd886994dc7192118d86ebf7f732a0b4433c5fbdabbb40b

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

    MD5

    bcb67bc61e12cec734097fbd2daba4d2

    SHA1

    bf54797534b252f80ee8e81c2620871b2785c1e8

    SHA256

    3b9a63423474280c5c4b223ee7ee619ef8cce8787abd54c600973f2c694365e5

    SHA512

    cd72d9b20c5bcef6c978595caa35654a6d4c54ccf3bfce962eb6e59c198a9c65a125adbd9ec1f6d64bd886994dc7192118d86ebf7f732a0b4433c5fbdabbb40b