Analysis

  • max time kernel
    160s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:47

General

  • Target

    090b3da9add6f6d83435d631169da79e216b035e5e072398ff9c0d7ff0af8caa.exe

  • Size

    60KB

  • MD5

    4859a3f92749b1a723955964816838fc

  • SHA1

    7da946d41d3f6d5386555e1fea8cbf9f604f0b7f

  • SHA256

    090b3da9add6f6d83435d631169da79e216b035e5e072398ff9c0d7ff0af8caa

  • SHA512

    39ec132a54aec5d3c474a45471a7adb26afa067c2faa6b772b3f4c5680bc5dfa2fb706bbfcd58b5117cd81351703994125257b7c626bd07c27f72ee5a18803f3

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 55 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\090b3da9add6f6d83435d631169da79e216b035e5e072398ff9c0d7ff0af8caa.exe
    "C:\Users\Admin\AppData\Local\Temp\090b3da9add6f6d83435d631169da79e216b035e5e072398ff9c0d7ff0af8caa.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\090b3da9add6f6d83435d631169da79e216b035e5e072398ff9c0d7ff0af8caa.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3652
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3460
  • 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:2268
  • 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:1240

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    1590d144e1a717b73e344a99ff1d8e3f

    SHA1

    1326248ad67e4f5eee61f9213abf5b2049ccc513

    SHA256

    7e10f21979a292feeea4982c706ae571d47772973b563f36634e914d159d5018

    SHA512

    096da6f0b8aa28941ef962ee004020cf96dacba92ba3a3d2bc8ddee9cbe5766e44ffc77a17fe08d1b3108e812a460bb300b19ec80f16b7e955135e492eb089c5

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

    1590d144e1a717b73e344a99ff1d8e3f

    SHA1

    1326248ad67e4f5eee61f9213abf5b2049ccc513

    SHA256

    7e10f21979a292feeea4982c706ae571d47772973b563f36634e914d159d5018

    SHA512

    096da6f0b8aa28941ef962ee004020cf96dacba92ba3a3d2bc8ddee9cbe5766e44ffc77a17fe08d1b3108e812a460bb300b19ec80f16b7e955135e492eb089c5