Analysis

  • max time kernel
    159s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:43

General

  • Target

    06451651b8740f2a37df76dce775386193e5a6863a7f1da8b961d34bc8a0092d.exe

  • Size

    89KB

  • MD5

    c2cc1a782491b29ae9ea19b0b329eea0

  • SHA1

    e13a86139adcaeec1f429e488a0776b9ea0b0026

  • SHA256

    06451651b8740f2a37df76dce775386193e5a6863a7f1da8b961d34bc8a0092d

  • SHA512

    1c1b3d537904cc42840f9cdd8b56e10c00f6969f1914645c040cd73754924a828da35896639fd189cd9f8079368d2e322a3389690ed8a4e7e4801ed5257be763

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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 53 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\06451651b8740f2a37df76dce775386193e5a6863a7f1da8b961d34bc8a0092d.exe
    "C:\Users\Admin\AppData\Local\Temp\06451651b8740f2a37df76dce775386193e5a6863a7f1da8b961d34bc8a0092d.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3232
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\06451651b8740f2a37df76dce775386193e5a6863a7f1da8b961d34bc8a0092d.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3288
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:872
  • 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:4040
  • 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:1684

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    5e83cff9898f2260ae0eb7b5ee28945a

    SHA1

    914a1c375dc59e9a4a26e42dcfcaaa1ffc79e49a

    SHA256

    6c06126a928e7b4397abbd65c9bb9e212df9ef9b9949ddeae80b051303377f32

    SHA512

    4f438d85d2990f8336f3bc4542712c0b706f2de078965e2c020a98d3166a0d86465208e87f551ba04f8b5b57cdb30749ea6e77a6b79c73d8e77aeb5723c7ecfc

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

    5e83cff9898f2260ae0eb7b5ee28945a

    SHA1

    914a1c375dc59e9a4a26e42dcfcaaa1ffc79e49a

    SHA256

    6c06126a928e7b4397abbd65c9bb9e212df9ef9b9949ddeae80b051303377f32

    SHA512

    4f438d85d2990f8336f3bc4542712c0b706f2de078965e2c020a98d3166a0d86465208e87f551ba04f8b5b57cdb30749ea6e77a6b79c73d8e77aeb5723c7ecfc