Analysis

  • max time kernel
    165s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:32

General

  • Target

    0fbf5e072ad32cbf0a9cc1306565e7ce69175fd0bb5bc25dce210d7cb03d1c90.exe

  • Size

    100KB

  • MD5

    fab0c1c68e920685bf2ddb0658070517

  • SHA1

    66709eb0ae1d63697e0f2a3e3d697a9fc75aa2e2

  • SHA256

    0fbf5e072ad32cbf0a9cc1306565e7ce69175fd0bb5bc25dce210d7cb03d1c90

  • SHA512

    a9085642c7c726e368f2fae38201d70eb0060fb92e0ecab7599e748c2166dde4cf785247b2c82e188929ddb779e37ff7fcd8fcd14a097d0cf262c59ad9d6934d

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 4 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\0fbf5e072ad32cbf0a9cc1306565e7ce69175fd0bb5bc25dce210d7cb03d1c90.exe
    "C:\Users\Admin\AppData\Local\Temp\0fbf5e072ad32cbf0a9cc1306565e7ce69175fd0bb5bc25dce210d7cb03d1c90.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2840
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0fbf5e072ad32cbf0a9cc1306565e7ce69175fd0bb5bc25dce210d7cb03d1c90.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:480
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3956
  • 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:644
  • 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:2276
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:4048

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    2105f07e6fa1f8d35887cf280944e622

    SHA1

    e056e2e829ef42aaba7b28c0221e574702ee7c64

    SHA256

    c35832949790aa80ac6a79ce89863ebd7785088757b804461d35cceebaf01f91

    SHA512

    394a2464f47b0c4d995066bf15e272a33ad19bba1efd518362483697690d52901c14a5eb924334caf805340071dbeda762613849e972049c329d65cb0d306da6

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

    MD5

    2105f07e6fa1f8d35887cf280944e622

    SHA1

    e056e2e829ef42aaba7b28c0221e574702ee7c64

    SHA256

    c35832949790aa80ac6a79ce89863ebd7785088757b804461d35cceebaf01f91

    SHA512

    394a2464f47b0c4d995066bf15e272a33ad19bba1efd518362483697690d52901c14a5eb924334caf805340071dbeda762613849e972049c329d65cb0d306da6