Analysis

  • max time kernel
    154s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:25

General

  • Target

    0a1d24c54b0aa18b81a065a03ed04ab0bfbb53e5a5cff364f987ada2121609d9.exe

  • Size

    176KB

  • MD5

    8469119c40b0dd62253bfed458057876

  • SHA1

    ec4a32687d04b93d326d4117bd7cc57e6565e524

  • SHA256

    0a1d24c54b0aa18b81a065a03ed04ab0bfbb53e5a5cff364f987ada2121609d9

  • SHA512

    f077e39df3d44ea62d97e56a4d2e2d5ed87780f42e2ceeb4d116ae71b8baea80cda356e669a7cbc7fbcfb9ef03c1d93bd4097b170799a2c3450f6e2929ab76c4

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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 51 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\0a1d24c54b0aa18b81a065a03ed04ab0bfbb53e5a5cff364f987ada2121609d9.exe
    "C:\Users\Admin\AppData\Local\Temp\0a1d24c54b0aa18b81a065a03ed04ab0bfbb53e5a5cff364f987ada2121609d9.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3504
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0a1d24c54b0aa18b81a065a03ed04ab0bfbb53e5a5cff364f987ada2121609d9.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1968
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:896
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3512
  • 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:2680
  • 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:3232

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    33ce32b0cfb55667e352e8f3a410f040

    SHA1

    4fac250b0892426ecb011d4c8d09f25cc99f2183

    SHA256

    559dc7d9e8c6f5dfc56ba1910b89725cd7993dfafeee61ac73982ffbd8bc1d9d

    SHA512

    57ebf56b0a4ab4ddf3261eec22b6f7cca066a01c5e5b87c18a73a464a630ed920e3b5e8e0ce46f642996b5cd846e496b5faebe4173b692cf17c1b7d39bb1718b

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

    33ce32b0cfb55667e352e8f3a410f040

    SHA1

    4fac250b0892426ecb011d4c8d09f25cc99f2183

    SHA256

    559dc7d9e8c6f5dfc56ba1910b89725cd7993dfafeee61ac73982ffbd8bc1d9d

    SHA512

    57ebf56b0a4ab4ddf3261eec22b6f7cca066a01c5e5b87c18a73a464a630ed920e3b5e8e0ce46f642996b5cd846e496b5faebe4173b692cf17c1b7d39bb1718b

  • memory/1420-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/3504-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB