Analysis

  • max time kernel
    171s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:27

General

  • Target

    12ad69d59716f55d90cee5e034092334078e3d58c1023a6cdce3a37d819cbc3d.exe

  • Size

    80KB

  • MD5

    3771253ee2a38f66628b2906e90ab92e

  • SHA1

    59635f4c8e92789f8c3c8c7d14ce0498ebe89192

  • SHA256

    12ad69d59716f55d90cee5e034092334078e3d58c1023a6cdce3a37d819cbc3d

  • SHA512

    26f6eb244d7abb826611dc79177621c4a788639792929afa26c9ca85b5078e69a1a02aa373a30728fdb3d827049b47ecaf11d19eb1399afdf2a671068829cfef

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 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\12ad69d59716f55d90cee5e034092334078e3d58c1023a6cdce3a37d819cbc3d.exe
    "C:\Users\Admin\AppData\Local\Temp\12ad69d59716f55d90cee5e034092334078e3d58c1023a6cdce3a37d819cbc3d.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3984
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\12ad69d59716f55d90cee5e034092334078e3d58c1023a6cdce3a37d819cbc3d.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1228
      • 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:844
  • 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:2980
  • 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:2804

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    3d248daca4a90e5369dc24d5515faf50

    SHA1

    8b2d210dfd3018f2a5ba349fb4337ae723b85403

    SHA256

    55dd7ec2658ce05c8b6d8d5f7ad08b4ec6066f495345b3faaa1d4e750b80f63b

    SHA512

    449bce09057808091c2ceb875c5c6c60a65042fd4fb281ce84cd38ed6cdbe17eeb0eac5ebe2c708f2ca3184cce931f40308844dd39b54a8d2d5c14d17588c152

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

    MD5

    3d248daca4a90e5369dc24d5515faf50

    SHA1

    8b2d210dfd3018f2a5ba349fb4337ae723b85403

    SHA256

    55dd7ec2658ce05c8b6d8d5f7ad08b4ec6066f495345b3faaa1d4e750b80f63b

    SHA512

    449bce09057808091c2ceb875c5c6c60a65042fd4fb281ce84cd38ed6cdbe17eeb0eac5ebe2c708f2ca3184cce931f40308844dd39b54a8d2d5c14d17588c152