Analysis

  • max time kernel
    153s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:32

General

  • Target

    09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe

  • Size

    192KB

  • MD5

    3da4fa0fb356222d7f5fdb05414b44e5

  • SHA1

    423b8d77336b4d152dee6b2da0f999cfbf38b84f

  • SHA256

    09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca

  • SHA512

    d7ea50d3910b1985bd829517760dc40663fc3a4b1b2b9c5abe5468d8f94e5d81b307a087b1da53d7e246bc69deabfcae77a9464fd4df860c78eb5de49089650f

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 52 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\09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe
    "C:\Users\Admin\AppData\Local\Temp\09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1884
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2040
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3872
  • 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:2884
  • 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:3660
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k wusvcs -p
    1⤵
      PID:3596

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      969abe0d81d5af5a8930146c5fd5a209

      SHA1

      826d289ab309d9ca71f2d1a0c15244355298e38d

      SHA256

      fd37b12518ce47d531fd9962f1604baa99784dd013f6d2a9a51f4ab4e8bf16e8

      SHA512

      09c43b8aea4fcb955c8326fa69435557af84c5d54f4f483f5e82317d890a45bd4963ade46043d6c6e9daa998716e4313616e816bb7fb07ff6100c6d3e8d8ae93

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

      969abe0d81d5af5a8930146c5fd5a209

      SHA1

      826d289ab309d9ca71f2d1a0c15244355298e38d

      SHA256

      fd37b12518ce47d531fd9962f1604baa99784dd013f6d2a9a51f4ab4e8bf16e8

      SHA512

      09c43b8aea4fcb955c8326fa69435557af84c5d54f4f483f5e82317d890a45bd4963ade46043d6c6e9daa998716e4313616e816bb7fb07ff6100c6d3e8d8ae93