Analysis

  • max time kernel
    159s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:39

General

  • Target

    14e24de9a3ccde5efe7020d1622a74c8deadf83464c09e9148ad7819686d5601.exe

  • Size

    168KB

  • MD5

    b7e8f41e681092c884506d73ab6f0648

  • SHA1

    3795dd2a7bc8635018a0e65394641ebf6005d1d1

  • SHA256

    14e24de9a3ccde5efe7020d1622a74c8deadf83464c09e9148ad7819686d5601

  • SHA512

    309c30ccc92c33da1b4bd728a544db173fea0c61ef660de8d66ca96ec6e3ac5de50c56b135d3f9bd821c3416879e30f36b8259a6cd97f5ee6ab3178b0daf8aba

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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 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\14e24de9a3ccde5efe7020d1622a74c8deadf83464c09e9148ad7819686d5601.exe
    "C:\Users\Admin\AppData\Local\Temp\14e24de9a3ccde5efe7020d1622a74c8deadf83464c09e9148ad7819686d5601.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3144
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:772
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\14e24de9a3ccde5efe7020d1622a74c8deadf83464c09e9148ad7819686d5601.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3296
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3508
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1724
  • 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:3396
  • 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:2408

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    b884f2240f23f87d0b2a7a977a4eaf95

    SHA1

    f9f34ab99c10b0dcc63e9ef314dca7c4dc87b760

    SHA256

    8a118e93e3dbd263844a74e460ecf79210f4b1c6f412958f462b8da6b042998e

    SHA512

    bd6c5ac07989e395d774c11bcd41da058e16379fbcba0afa6cada4490df44e520fd189708926be67b36a6669ae294ca266f6fafa8c5118af626f5b498fb237f9

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

    MD5

    b884f2240f23f87d0b2a7a977a4eaf95

    SHA1

    f9f34ab99c10b0dcc63e9ef314dca7c4dc87b760

    SHA256

    8a118e93e3dbd263844a74e460ecf79210f4b1c6f412958f462b8da6b042998e

    SHA512

    bd6c5ac07989e395d774c11bcd41da058e16379fbcba0afa6cada4490df44e520fd189708926be67b36a6669ae294ca266f6fafa8c5118af626f5b498fb237f9

  • memory/772-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3144-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB