Analysis

  • max time kernel
    163s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:52

General

  • Target

    0334f02650ecee334886ae1aae71d61446c9529f08411e2f360badcd654e3d7f.exe

  • Size

    35KB

  • MD5

    70b60ab79b76c0bcba83c1acda9d540a

  • SHA1

    6117f7cbbfd343e76ce75e830887b91fc65f0d4e

  • SHA256

    0334f02650ecee334886ae1aae71d61446c9529f08411e2f360badcd654e3d7f

  • SHA512

    8b56e16347f047a4d567fdc4712aba2c2d80663042c60c50ea95516e0c897f03184309394d4e25e1dd45acbbc4b6f3b310336e81029694828aa79dda437ed593

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 45 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\0334f02650ecee334886ae1aae71d61446c9529f08411e2f360badcd654e3d7f.exe
    "C:\Users\Admin\AppData\Local\Temp\0334f02650ecee334886ae1aae71d61446c9529f08411e2f360badcd654e3d7f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0334f02650ecee334886ae1aae71d61446c9529f08411e2f360badcd654e3d7f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2648
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2496
  • 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:3808
  • 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:2796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    4a4789b31e021fedeff1645c730995ba

    SHA1

    2c1be17fd66280c7451091569fb069aa3db244a8

    SHA256

    6d4db85edcd03247724d76f44225707e9d85954a44da65292da0f2b33a52e0b3

    SHA512

    c79bce4c65b90e7412e7db883852b2261a88f32c10f7b1028993bb307a62d188f26012eb6698f39e58ea4409cfaacbdfef31fb6eb14bc1aefba23395a2ec291e

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

    MD5

    4a4789b31e021fedeff1645c730995ba

    SHA1

    2c1be17fd66280c7451091569fb069aa3db244a8

    SHA256

    6d4db85edcd03247724d76f44225707e9d85954a44da65292da0f2b33a52e0b3

    SHA512

    c79bce4c65b90e7412e7db883852b2261a88f32c10f7b1028993bb307a62d188f26012eb6698f39e58ea4409cfaacbdfef31fb6eb14bc1aefba23395a2ec291e