Analysis

  • max time kernel
    181s
  • max time network
    195s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:05

General

  • Target

    0bb44b3554d887079c978b8135e867dbd8f586d57daa5aa0a6be45792cdfb78d.exe

  • Size

    216KB

  • MD5

    294d8175c71c6e2b5adf407251686b51

  • SHA1

    58ed40421f8c41e6a6ce84642e7436e5669cd9dd

  • SHA256

    0bb44b3554d887079c978b8135e867dbd8f586d57daa5aa0a6be45792cdfb78d

  • SHA512

    cd17fb4362723578684866fc5bd13378faa44c79f1fe5e4c86db1deef3774fe8bb8a4d9bc6fad4f4f0b9a1127f0e1c8564bcf07a1d333365b6a6bb14fe263f7a

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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\0bb44b3554d887079c978b8135e867dbd8f586d57daa5aa0a6be45792cdfb78d.exe
    "C:\Users\Admin\AppData\Local\Temp\0bb44b3554d887079c978b8135e867dbd8f586d57daa5aa0a6be45792cdfb78d.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1128
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2688
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0bb44b3554d887079c978b8135e867dbd8f586d57daa5aa0a6be45792cdfb78d.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2576
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2488
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3916
  • 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:1252
  • 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:2496

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    4e7dc869ab126b7f7198fc5c121cce4d

    SHA1

    69706227212df0c317384b93da1217a1366d3c64

    SHA256

    e29705d1c074edba3b048dfe8655307e91a0f8f1132461316ffa612bd46214bf

    SHA512

    cad74b7e51aa206ac332e542fa7765b5412a4661036ee554b0d3d91fed5147194f54beba034267e407cd5d68de10b31e9a44afc900eeab0d0c98609dc4dc5a08

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

    MD5

    4e7dc869ab126b7f7198fc5c121cce4d

    SHA1

    69706227212df0c317384b93da1217a1366d3c64

    SHA256

    e29705d1c074edba3b048dfe8655307e91a0f8f1132461316ffa612bd46214bf

    SHA512

    cad74b7e51aa206ac332e542fa7765b5412a4661036ee554b0d3d91fed5147194f54beba034267e407cd5d68de10b31e9a44afc900eeab0d0c98609dc4dc5a08

  • memory/1128-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2688-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB