Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:20

General

  • Target

    04a07b72eed2ed785bbc2f646dcf7fd2cec7c94867065f242e8c0976da81c55b.exe

  • Size

    36KB

  • MD5

    209bd68bc2ddc52942b7a56a240ea5ee

  • SHA1

    cb4b105cefbe1858fbb125b88cf534e9b2662939

  • SHA256

    04a07b72eed2ed785bbc2f646dcf7fd2cec7c94867065f242e8c0976da81c55b

  • SHA512

    82bbdcbe7913a2484c920dafe5762039e309d12d083be05021a4cafd4b12ad3d360703f2100db470de1f06f30ed45e6d65c43c053b2b6d6957bde92cc8e501b5

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 53 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\04a07b72eed2ed785bbc2f646dcf7fd2cec7c94867065f242e8c0976da81c55b.exe
    "C:\Users\Admin\AppData\Local\Temp\04a07b72eed2ed785bbc2f646dcf7fd2cec7c94867065f242e8c0976da81c55b.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3952
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04a07b72eed2ed785bbc2f646dcf7fd2cec7c94867065f242e8c0976da81c55b.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3964
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1928
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1944
  • 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:772
  • 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:3472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    32a97e0a5fc38d07352de685009a84a4

    SHA1

    885fb4518cab2e2613d3c726aeab382070fc4693

    SHA256

    feb65173617f36b01efbd98ce420e3b421dedcfd3a552d58502ba0601a27aff7

    SHA512

    1bf954efd7a232bc7b7ea8ac88ba19a016a881daebbf9f874a4c126c5e0eb563a1499d5979e7fcb33ecb68f74f74e722754e247093770cbcf917e0342aee8df0

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

    32a97e0a5fc38d07352de685009a84a4

    SHA1

    885fb4518cab2e2613d3c726aeab382070fc4693

    SHA256

    feb65173617f36b01efbd98ce420e3b421dedcfd3a552d58502ba0601a27aff7

    SHA512

    1bf954efd7a232bc7b7ea8ac88ba19a016a881daebbf9f874a4c126c5e0eb563a1499d5979e7fcb33ecb68f74f74e722754e247093770cbcf917e0342aee8df0