Analysis

  • max time kernel
    159s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:09

General

  • Target

    052d285b43fa67a95e17aa19d0bd9d00eeb36051d7d1298b6d0d1ac49dd05b46.exe

  • Size

    112KB

  • MD5

    3fabeed2ebde29436fe1ec892a6a1cf7

  • SHA1

    8247ede14dd40c44a98a992af13781de61ae380e

  • SHA256

    052d285b43fa67a95e17aa19d0bd9d00eeb36051d7d1298b6d0d1ac49dd05b46

  • SHA512

    ca1095e064c205844dcb26c53dfa8ebe49ae888da9c489f51077145dce8f1e7fce838c8e8798756feb8fa4bef87231e523835c3abc3355ec070d678fadf9ed6e

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 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\052d285b43fa67a95e17aa19d0bd9d00eeb36051d7d1298b6d0d1ac49dd05b46.exe
    "C:\Users\Admin\AppData\Local\Temp\052d285b43fa67a95e17aa19d0bd9d00eeb36051d7d1298b6d0d1ac49dd05b46.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2584
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\052d285b43fa67a95e17aa19d0bd9d00eeb36051d7d1298b6d0d1ac49dd05b46.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3344
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2272
  • 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:2168
  • 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:2116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    f53658ad54ab2ac9be0ce81358e3dfaf

    SHA1

    723cbeed23d3d5722c13f9199a0eec179bbe1064

    SHA256

    16974f6e943356524a55daa43cca021e53f39902617c5cff47e7149ee421f8a1

    SHA512

    dce8aa102fc36dabe5484919459ad75beb7675e0885d5912f90a0f8c842b95c3d06e27b675bac7bebff16f3692c627297c079e941cc6cd9552ad3fb7d9ab4987

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

    f53658ad54ab2ac9be0ce81358e3dfaf

    SHA1

    723cbeed23d3d5722c13f9199a0eec179bbe1064

    SHA256

    16974f6e943356524a55daa43cca021e53f39902617c5cff47e7149ee421f8a1

    SHA512

    dce8aa102fc36dabe5484919459ad75beb7675e0885d5912f90a0f8c842b95c3d06e27b675bac7bebff16f3692c627297c079e941cc6cd9552ad3fb7d9ab4987

  • memory/624-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2584-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB