Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:07

General

  • Target

    0540ed18ac984764ddb9f1a90d52e83d1ab98d9e24bc875799785f411afdfe90.exe

  • Size

    35KB

  • MD5

    dc2ffea6aa5d6a2cb88de7e235c6e5af

  • SHA1

    6003d6bf212dd54afb79ddf0c0410396815c17d3

  • SHA256

    0540ed18ac984764ddb9f1a90d52e83d1ab98d9e24bc875799785f411afdfe90

  • SHA512

    7ad48a0b5782344e4110b1d1fdbe7d816ec9a81ca199b5e08511a6c9b2574a9d13c442a0c97a609e8a27e44b7020490545b6ddfcfbbc0ccdebb80276d3616eba

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 54 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\0540ed18ac984764ddb9f1a90d52e83d1ab98d9e24bc875799785f411afdfe90.exe
    "C:\Users\Admin\AppData\Local\Temp\0540ed18ac984764ddb9f1a90d52e83d1ab98d9e24bc875799785f411afdfe90.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:908
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0540ed18ac984764ddb9f1a90d52e83d1ab98d9e24bc875799785f411afdfe90.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3816
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3560
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2816
  • 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:3356
  • 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:3500

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    17580e79491a809eb6df0d57f24fae6c

    SHA1

    5b80a75cf6938b40da1a41564aea9292ede50971

    SHA256

    6dcfc70d8fa9b709e1b90bfd830ef89c9db8e9c93e869917cd789b82a40d0a3a

    SHA512

    aa9b45e8569f58df1e635f080983ad78ae657155b638abf58d851d623f73a9be56cae700cf7ce994a368ec0004e90dba4ea4a10cdd8a066522cb2cf9c926e98a

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

    17580e79491a809eb6df0d57f24fae6c

    SHA1

    5b80a75cf6938b40da1a41564aea9292ede50971

    SHA256

    6dcfc70d8fa9b709e1b90bfd830ef89c9db8e9c93e869917cd789b82a40d0a3a

    SHA512

    aa9b45e8569f58df1e635f080983ad78ae657155b638abf58d851d623f73a9be56cae700cf7ce994a368ec0004e90dba4ea4a10cdd8a066522cb2cf9c926e98a