Analysis

  • max time kernel
    171s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:55

General

  • Target

    14053a307b20f60ee5a23bfe6a1b7db2f9c510609889443a0a3c9250e0b1e7c4.exe

  • Size

    92KB

  • MD5

    79fd3572f2d429099b795671a89a053d

  • SHA1

    9cd699611b96568075c9e9a309e5c6a0067a48ff

  • SHA256

    14053a307b20f60ee5a23bfe6a1b7db2f9c510609889443a0a3c9250e0b1e7c4

  • SHA512

    34d2aacab00ff5ee3710eb57ea5202695039069523646cb3cc2f18634b16b12b30240afd6d0d3709323317e71441fd55bd8e8ac9e2ed212fb243d7f514771419

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 49 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\14053a307b20f60ee5a23bfe6a1b7db2f9c510609889443a0a3c9250e0b1e7c4.exe
    "C:\Users\Admin\AppData\Local\Temp\14053a307b20f60ee5a23bfe6a1b7db2f9c510609889443a0a3c9250e0b1e7c4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2944
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\14053a307b20f60ee5a23bfe6a1b7db2f9c510609889443a0a3c9250e0b1e7c4.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2972
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:548
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1676
  • 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:3320
  • 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:4000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    9b248fa106b1ab9e09f833a6e3eeb970

    SHA1

    e5a466e379e871a15f4b043247330b7feba419b1

    SHA256

    63681f714b5ec9a6b11425c53dfb4af9e293c6a4884c6719cf8f0152d9b59230

    SHA512

    b5ffba8bfaa480f3f5f727768712a6407930cf5007d699fa7363e5c635dc526674f7af241de6c48cb390bbe7fabbf5aa574177b838045e4ec7fa1a44105a6dfa

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

    MD5

    9b248fa106b1ab9e09f833a6e3eeb970

    SHA1

    e5a466e379e871a15f4b043247330b7feba419b1

    SHA256

    63681f714b5ec9a6b11425c53dfb4af9e293c6a4884c6719cf8f0152d9b59230

    SHA512

    b5ffba8bfaa480f3f5f727768712a6407930cf5007d699fa7363e5c635dc526674f7af241de6c48cb390bbe7fabbf5aa574177b838045e4ec7fa1a44105a6dfa