Analysis

  • max time kernel
    153s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:29

General

  • Target

    09e630f3e8d749bb98425ec7207b7f0701ff0a45a5eaac17d44030b5ccaab722.exe

  • Size

    92KB

  • MD5

    d76099e26c6cbd8592d1020d8f28105d

  • SHA1

    0bb4a38821f22194a7c1d6129941c3250a44a24f

  • SHA256

    09e630f3e8d749bb98425ec7207b7f0701ff0a45a5eaac17d44030b5ccaab722

  • SHA512

    f0ab953378c51ecdee288ece457507e75423b8c7933f31fff04f523abd5d1f6d435d21a13131c400a5572cbefca1b0d6fee5244c9ad23d4d613097d0bf15466e

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 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\09e630f3e8d749bb98425ec7207b7f0701ff0a45a5eaac17d44030b5ccaab722.exe
    "C:\Users\Admin\AppData\Local\Temp\09e630f3e8d749bb98425ec7207b7f0701ff0a45a5eaac17d44030b5ccaab722.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:884
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09e630f3e8d749bb98425ec7207b7f0701ff0a45a5eaac17d44030b5ccaab722.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3528
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2664
  • 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:3032
  • 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:3952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    18833ddda0949cb80d6395e05ee5b5b1

    SHA1

    1d537665ee7933e2393ec8913593bc02538763a2

    SHA256

    913f88f93b3f5ec72d4369595257f53483db35e268beed1414667b942316a64d

    SHA512

    f3cd433312fd4e8ed59faeb97429585bff3fe3d4b4f45364f6dbd0304da1e1b005db88c67a18d924911a0c5cfa5c6dd69167b8f30230f181370152ebaef37822

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

    18833ddda0949cb80d6395e05ee5b5b1

    SHA1

    1d537665ee7933e2393ec8913593bc02538763a2

    SHA256

    913f88f93b3f5ec72d4369595257f53483db35e268beed1414667b942316a64d

    SHA512

    f3cd433312fd4e8ed59faeb97429585bff3fe3d4b4f45364f6dbd0304da1e1b005db88c67a18d924911a0c5cfa5c6dd69167b8f30230f181370152ebaef37822