Analysis

  • max time kernel
    165s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:30

General

  • Target

    0af7a4c943fc60a2dbf6e3ba0d3f7d7e37e07c096870e51b051612d044e3cee9.exe

  • Size

    216KB

  • MD5

    f87e02dfa8b4c18ce680c415a188368f

  • SHA1

    867363b6c81840f141a92b97a6b000ccfa9ae510

  • SHA256

    0af7a4c943fc60a2dbf6e3ba0d3f7d7e37e07c096870e51b051612d044e3cee9

  • SHA512

    f92f359bb714afd29367b8604351d2c6332f4d3fd70b399fdadc23cd9bd6265fe73b90dbc8a11ceb6fef15ec7b7ea1eb97dc2c6c78ef69e193c72c95b6ab1da7

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • 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\0af7a4c943fc60a2dbf6e3ba0d3f7d7e37e07c096870e51b051612d044e3cee9.exe
    "C:\Users\Admin\AppData\Local\Temp\0af7a4c943fc60a2dbf6e3ba0d3f7d7e37e07c096870e51b051612d044e3cee9.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2136
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0af7a4c943fc60a2dbf6e3ba0d3f7d7e37e07c096870e51b051612d044e3cee9.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3768
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3472
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1364
  • 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:3336
  • 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:844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    972fcb3e428258797a07ca36859cf7e9

    SHA1

    11383d6367fc30f9e4b3376cf87327a5d77a9308

    SHA256

    9dd17a97d2ccff330a37747c8799941c8c0b4d39a5921c43bc7f2a6abcc6d5ca

    SHA512

    7b450d9a412df16e3b0523b8007a81f0373d014a25fd2b9be45fa9c2a77f21b3b3f0ec27e330d9d498d0a2ff6750730cca93cd7e75278feb4ce0c2513aa60dbd

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

    972fcb3e428258797a07ca36859cf7e9

    SHA1

    11383d6367fc30f9e4b3376cf87327a5d77a9308

    SHA256

    9dd17a97d2ccff330a37747c8799941c8c0b4d39a5921c43bc7f2a6abcc6d5ca

    SHA512

    7b450d9a412df16e3b0523b8007a81f0373d014a25fd2b9be45fa9c2a77f21b3b3f0ec27e330d9d498d0a2ff6750730cca93cd7e75278feb4ce0c2513aa60dbd

  • memory/1804-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2136-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB