Analysis

  • max time kernel
    174s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:59

General

  • Target

    0c03fbac3fb8d2cf7d4cb471a2dce8cbce7a1a6574d563b46c9975c18ce89b94.exe

  • Size

    99KB

  • MD5

    4b3c83649fd0cece7bf6c200e363b4d4

  • SHA1

    a89e3aa73f1a54b166bf6f9635adc73ac2192235

  • SHA256

    0c03fbac3fb8d2cf7d4cb471a2dce8cbce7a1a6574d563b46c9975c18ce89b94

  • SHA512

    e159d09beafce0663015de20b79472b6251184c6ef9ff226f7bf13b1274db4e2b72c81e48b470ab7587e93a0f7dab30fb0bb07ec4e498457d50adef5c494ced6

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 51 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\0c03fbac3fb8d2cf7d4cb471a2dce8cbce7a1a6574d563b46c9975c18ce89b94.exe
    "C:\Users\Admin\AppData\Local\Temp\0c03fbac3fb8d2cf7d4cb471a2dce8cbce7a1a6574d563b46c9975c18ce89b94.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3320
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c03fbac3fb8d2cf7d4cb471a2dce8cbce7a1a6574d563b46c9975c18ce89b94.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2224
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3048
  • 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:1716
  • 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:3260

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    74255385af6f3354a0ea84c67e3c229f

    SHA1

    3e6599dfddc310ae2579d5d5dd8d63929a048b1c

    SHA256

    e179c51aaaf66ac4ce2b27eb9cae2bfe9de66ad4e8646de1f71cc1b9a8b74aac

    SHA512

    970ce8a21b50f580440b1adc54a6ee8ef3e52b0885bf1c945eef1d19989ee934156263bed81f530f5012fcc2d67a173c0bcbf702b967f314abe2060a3f353cc9

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

    MD5

    74255385af6f3354a0ea84c67e3c229f

    SHA1

    3e6599dfddc310ae2579d5d5dd8d63929a048b1c

    SHA256

    e179c51aaaf66ac4ce2b27eb9cae2bfe9de66ad4e8646de1f71cc1b9a8b74aac

    SHA512

    970ce8a21b50f580440b1adc54a6ee8ef3e52b0885bf1c945eef1d19989ee934156263bed81f530f5012fcc2d67a173c0bcbf702b967f314abe2060a3f353cc9