Analysis

  • max time kernel
    157s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:29

General

  • Target

    09ed2d2083d6a8ae6456e2de5f61099910e8a77891074ff1bb5cc2c5718ffc2e.exe

  • Size

    150KB

  • MD5

    9e266691f18deed37ac576bf09c5e343

  • SHA1

    9248695c15e223e6978b1619a21bf256d83a5348

  • SHA256

    09ed2d2083d6a8ae6456e2de5f61099910e8a77891074ff1bb5cc2c5718ffc2e

  • SHA512

    5eb011ccd0e226b2a6667447b6b5295d8e28c3602df56a54c8780b419bf43d0e63d9f929e902a30dd2de6963c4e4145d810aab101e29af58f66eb5cfbd5c3de1

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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\09ed2d2083d6a8ae6456e2de5f61099910e8a77891074ff1bb5cc2c5718ffc2e.exe
    "C:\Users\Admin\AppData\Local\Temp\09ed2d2083d6a8ae6456e2de5f61099910e8a77891074ff1bb5cc2c5718ffc2e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2864
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09ed2d2083d6a8ae6456e2de5f61099910e8a77891074ff1bb5cc2c5718ffc2e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3252
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3940
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:832
  • 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:2220
  • 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:800

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    3e99a8eb15cf2d6b61db7fc53ce4bedc

    SHA1

    2605bb41d7817b18e3ad265b8446b4bc96ee57e3

    SHA256

    47a820844cc00c01417fe7a29c632bb5d0462adc9db590da3c708efac225c14f

    SHA512

    f8361e5cda98911c75c17a2bebfca10735f482ee5666f768dac7510900b7072def70f85d0f9f33d0fffb82201ff6c9683380d3f2b8bcfc3a9bf2b5df553fb99f

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

    3e99a8eb15cf2d6b61db7fc53ce4bedc

    SHA1

    2605bb41d7817b18e3ad265b8446b4bc96ee57e3

    SHA256

    47a820844cc00c01417fe7a29c632bb5d0462adc9db590da3c708efac225c14f

    SHA512

    f8361e5cda98911c75c17a2bebfca10735f482ee5666f768dac7510900b7072def70f85d0f9f33d0fffb82201ff6c9683380d3f2b8bcfc3a9bf2b5df553fb99f