Analysis

  • max time kernel
    158s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:17

General

  • Target

    132687052433e49c5fadf9ca23ceac9a3e5d6453a544e9e9dfe6fb48a0f909ac.exe

  • Size

    89KB

  • MD5

    d8e00bbc9f76bf6ebc2697b9d7a47fad

  • SHA1

    4f519aeb0ad06148a8351f5a0f38e77f038e38d2

  • SHA256

    132687052433e49c5fadf9ca23ceac9a3e5d6453a544e9e9dfe6fb48a0f909ac

  • SHA512

    d1ee44524b8c65a2ff33881ad22f1b2e0053c3c23ca88d251d766998fbd0c6027d2722a8485f53c462c1adda73b2b9dc484fa6703bfc2eb1cc8d899e39520e83

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 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\132687052433e49c5fadf9ca23ceac9a3e5d6453a544e9e9dfe6fb48a0f909ac.exe
    "C:\Users\Admin\AppData\Local\Temp\132687052433e49c5fadf9ca23ceac9a3e5d6453a544e9e9dfe6fb48a0f909ac.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\132687052433e49c5fadf9ca23ceac9a3e5d6453a544e9e9dfe6fb48a0f909ac.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2496
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2192
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3300
  • 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:2596
  • 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:1220

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    a615230fcf05f27a71d86e10e5613964

    SHA1

    aeb4c65715f834120243b06d13f10cecc905ab14

    SHA256

    899e486db7bdce5256a78ad9fcd0034b1b7960c3915b68d3a7cac0fd5fef4556

    SHA512

    c58a37a2c64f841de9cc5eb7adfd7cb9fde78502ddfad4d5b944c1719426b84ee975517d112ab89636de2317290d7031df8d788461d676ea2208eb5bf7375472

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

    MD5

    a615230fcf05f27a71d86e10e5613964

    SHA1

    aeb4c65715f834120243b06d13f10cecc905ab14

    SHA256

    899e486db7bdce5256a78ad9fcd0034b1b7960c3915b68d3a7cac0fd5fef4556

    SHA512

    c58a37a2c64f841de9cc5eb7adfd7cb9fde78502ddfad4d5b944c1719426b84ee975517d112ab89636de2317290d7031df8d788461d676ea2208eb5bf7375472

  • memory/3392-132-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3968-133-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB