Analysis

  • max time kernel
    164s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:05

General

  • Target

    13b57644814b7078b1f54da45c8366716185c6198045cc775cc1d210a0eb4726.exe

  • Size

    151KB

  • MD5

    27dfebc9b35a3f1b9ecf010f9fb0f9e8

  • SHA1

    46ec52c4b07f30fbd5ff1a1fc1141915a4901cfc

  • SHA256

    13b57644814b7078b1f54da45c8366716185c6198045cc775cc1d210a0eb4726

  • SHA512

    1878d6c8c25f8257f24008973488c97ba6de80e84b11105828bf82538db3e3bfabd051f2c1f9c35c788c7ef718cb90ab355e35c1127b9028a86a0ce7cba38bae

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\13b57644814b7078b1f54da45c8366716185c6198045cc775cc1d210a0eb4726.exe
    "C:\Users\Admin\AppData\Local\Temp\13b57644814b7078b1f54da45c8366716185c6198045cc775cc1d210a0eb4726.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • 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:3988
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\13b57644814b7078b1f54da45c8366716185c6198045cc775cc1d210a0eb4726.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3248
  • 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:3084
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3196
  • 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:216

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    cf0588b466d8c6426e2c9b5be30b77b5

    SHA1

    223f20b3804d46cb47e78598e7600fa231dc31eb

    SHA256

    32466e898ea92646e3afe2200cbde8ae16f0f8c4f779c131c83a900013b9be28

    SHA512

    86a7bcc693d0deba9cb90be7ff8c63d4a7de965b2100ed3d3221924483636aae7aba3996b14a9964a7f97ea0064038fd9c74a01d2399d8088c1728b686519176

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

    MD5

    cf0588b466d8c6426e2c9b5be30b77b5

    SHA1

    223f20b3804d46cb47e78598e7600fa231dc31eb

    SHA256

    32466e898ea92646e3afe2200cbde8ae16f0f8c4f779c131c83a900013b9be28

    SHA512

    86a7bcc693d0deba9cb90be7ff8c63d4a7de965b2100ed3d3221924483636aae7aba3996b14a9964a7f97ea0064038fd9c74a01d2399d8088c1728b686519176