Analysis

  • max time kernel
    178s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:03

General

  • Target

    0bd4c2454ad8aa60b88b3c2dfd41cc7f65fe8474fc0fca5a8584057aa1f5d643.exe

  • Size

    58KB

  • MD5

    02d0734eb97bc7329b2b6a49fb109836

  • SHA1

    0591f9420fbeac223e1fc3d2b4b2d324332140a9

  • SHA256

    0bd4c2454ad8aa60b88b3c2dfd41cc7f65fe8474fc0fca5a8584057aa1f5d643

  • SHA512

    418e4498c1e38d482de3561d9da8a8262bb985e5a69a4118694c50d298193b234ce86340057195dc2852d2d20bc89407a8e7273bf3fc5680b2641e31d89ad0c1

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 50 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\0bd4c2454ad8aa60b88b3c2dfd41cc7f65fe8474fc0fca5a8584057aa1f5d643.exe
    "C:\Users\Admin\AppData\Local\Temp\0bd4c2454ad8aa60b88b3c2dfd41cc7f65fe8474fc0fca5a8584057aa1f5d643.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4528
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0bd4c2454ad8aa60b88b3c2dfd41cc7f65fe8474fc0fca5a8584057aa1f5d643.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3868
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2500
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2668
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2840
  • 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:4560
  • 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:1740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    ab6cb551137b6702a7ae252497b12706

    SHA1

    acb0c519a13f67b0cb2280c3e222df4b203435e3

    SHA256

    72f3e0ee11616629bf5b76a9863b6f2abc9fe6565eb2a6518b06026b00dc111d

    SHA512

    96a3cc441fe246c02ad13e0c34ccb3aeb3f76fc71c9cee53f017b0602cae9230af054dc91c63a2e136a7c0fb27769341c00d32a5539035041dfc524669796005

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

    MD5

    ab6cb551137b6702a7ae252497b12706

    SHA1

    acb0c519a13f67b0cb2280c3e222df4b203435e3

    SHA256

    72f3e0ee11616629bf5b76a9863b6f2abc9fe6565eb2a6518b06026b00dc111d

    SHA512

    96a3cc441fe246c02ad13e0c34ccb3aeb3f76fc71c9cee53f017b0602cae9230af054dc91c63a2e136a7c0fb27769341c00d32a5539035041dfc524669796005