Analysis

  • max time kernel
    161s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:15

General

  • Target

    1080cd3b0f922f1e3dea6752598fc72555bb0bfbd69fd4af4700613711f52687.exe

  • Size

    36KB

  • MD5

    7fda0fe3d898b6476b4b7eb7c68d7b72

  • SHA1

    2f9e04a6353e2da2045f9db9be800ff13fe5b4ca

  • SHA256

    1080cd3b0f922f1e3dea6752598fc72555bb0bfbd69fd4af4700613711f52687

  • SHA512

    e382930fa24f01a8e3808d2ea0ff8ee1904c80aa09acd10dbbc6938228b838d498fc7ad543ce89002d36e8cf5f44c4a8197a7df908be504bf50725bf8842a21a

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 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\1080cd3b0f922f1e3dea6752598fc72555bb0bfbd69fd4af4700613711f52687.exe
    "C:\Users\Admin\AppData\Local\Temp\1080cd3b0f922f1e3dea6752598fc72555bb0bfbd69fd4af4700613711f52687.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2752
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1080cd3b0f922f1e3dea6752598fc72555bb0bfbd69fd4af4700613711f52687.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3924
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1620
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2900
  • 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:1416
  • 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:2988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    f54f78b0dae12ef4a977eaf8dc8e1a5d

    SHA1

    04bb4d0dabb6de55e7eeb8f5412f6491c6141026

    SHA256

    da68f1eafa0ef7880a88a5554b878be3f9eb06242217ae37eaa194dff506b5b7

    SHA512

    580ec187be46afce0578ba097aa81341e6fa3507392357d18712d5194ad39534a67a3c3a195af67f9c47b990c6e8314dce9525e66314b137f6980fe3e17caad7

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

    MD5

    f54f78b0dae12ef4a977eaf8dc8e1a5d

    SHA1

    04bb4d0dabb6de55e7eeb8f5412f6491c6141026

    SHA256

    da68f1eafa0ef7880a88a5554b878be3f9eb06242217ae37eaa194dff506b5b7

    SHA512

    580ec187be46afce0578ba097aa81341e6fa3507392357d18712d5194ad39534a67a3c3a195af67f9c47b990c6e8314dce9525e66314b137f6980fe3e17caad7