Analysis

  • max time kernel
    161s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:55

General

  • Target

    0c43894c7bb0db4465051203b8a132be1998e6959ecbc8559cc20e5b5461526e.exe

  • Size

    89KB

  • MD5

    c54de1b6137cb5ba9f5f83ea30ecbbab

  • SHA1

    99caed0802488d3c309a96dc17794a9fc95346ae

  • SHA256

    0c43894c7bb0db4465051203b8a132be1998e6959ecbc8559cc20e5b5461526e

  • SHA512

    284fe0da09869f74e2ff7d76a5ca44c9554ab1a46b54d1580e57f7b281cd83b2e357082b5c1e3437db1b5f60bb326324088d86c7a3fe03fc8abb10ec1eb8c2d8

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 54 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\0c43894c7bb0db4465051203b8a132be1998e6959ecbc8559cc20e5b5461526e.exe
    "C:\Users\Admin\AppData\Local\Temp\0c43894c7bb0db4465051203b8a132be1998e6959ecbc8559cc20e5b5461526e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c43894c7bb0db4465051203b8a132be1998e6959ecbc8559cc20e5b5461526e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2860
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2524
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1128
  • 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:1800
  • 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:3068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    15857c1c576e6d7ccb41ce65b1527b84

    SHA1

    c13a40890bdbccf4982f7c47abe777520a547b50

    SHA256

    125e66356d36606bb2557c475f6d7313f3fb2381e1ea2dd282756f028f65ed23

    SHA512

    2ef2c5651a3af7d301bc76444ae3d3f6022898f98accafac61d15e3c51fea39e7d39ac80cdf42d72f453874adffe5b2e3094e7f70b4950326511caa055a08b06

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

    MD5

    15857c1c576e6d7ccb41ce65b1527b84

    SHA1

    c13a40890bdbccf4982f7c47abe777520a547b50

    SHA256

    125e66356d36606bb2557c475f6d7313f3fb2381e1ea2dd282756f028f65ed23

    SHA512

    2ef2c5651a3af7d301bc76444ae3d3f6022898f98accafac61d15e3c51fea39e7d39ac80cdf42d72f453874adffe5b2e3094e7f70b4950326511caa055a08b06