Analysis

  • max time kernel
    165s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:25

General

  • Target

    074665acb0d591fc0eda5212cedef6b07f803506857bac61a642de14b5eb407e.exe

  • Size

    192KB

  • MD5

    22be18bd103dfd1d7f848ebe6d16814e

  • SHA1

    8156fc566bdfe8dd1855628af6b3a4b36192844b

  • SHA256

    074665acb0d591fc0eda5212cedef6b07f803506857bac61a642de14b5eb407e

  • SHA512

    5330397c01849492b770f3671ed24c955fd835b1ba18040dcfbb9c292102b97295a8f300ac772cf669397b0376bc62987d2acfbfc04af7578672d5cb49831941

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 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\074665acb0d591fc0eda5212cedef6b07f803506857bac61a642de14b5eb407e.exe
    "C:\Users\Admin\AppData\Local\Temp\074665acb0d591fc0eda5212cedef6b07f803506857bac61a642de14b5eb407e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:244
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3276
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\074665acb0d591fc0eda5212cedef6b07f803506857bac61a642de14b5eb407e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4088
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1784
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2916
  • 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:3140
  • 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:2792

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    22b75a5539797c41472e742c28528b76

    SHA1

    c75346689044cbbe52eb58cb53295b17f7dc5e9b

    SHA256

    de12c054a8b306526539779b5b253c4b185e7a2d5d0208914d83de35c9c7587f

    SHA512

    3d2bd595580ca4d54b35059805d8e83d6056afe593830702277b32b92d3de76bcaab0c86d7a4bcb22d6810d2669d0e5c6713f3f607af22ec3a3f3d09803863f4

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

    22b75a5539797c41472e742c28528b76

    SHA1

    c75346689044cbbe52eb58cb53295b17f7dc5e9b

    SHA256

    de12c054a8b306526539779b5b253c4b185e7a2d5d0208914d83de35c9c7587f

    SHA512

    3d2bd595580ca4d54b35059805d8e83d6056afe593830702277b32b92d3de76bcaab0c86d7a4bcb22d6810d2669d0e5c6713f3f607af22ec3a3f3d09803863f4