Analysis

  • max time kernel
    170s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:33

General

  • Target

    04224614cf64a00956257cfb05308159a7f1f6a8aaead50d62448628cef98aa2.exe

  • Size

    92KB

  • MD5

    43ecf054084ded53fad0dc367e1fb56c

  • SHA1

    f51851719dfb6fa101f378ea99efe0fcf8e31344

  • SHA256

    04224614cf64a00956257cfb05308159a7f1f6a8aaead50d62448628cef98aa2

  • SHA512

    e4fbe9b423fb8fef1e16d473fad7ef58726ebeb6f8972e48735388c48f9f99ecf258f0090a6b67f79db658fd41c8375ff501992ce471c1ce7f2dcabc7248edde

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 53 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\04224614cf64a00956257cfb05308159a7f1f6a8aaead50d62448628cef98aa2.exe
    "C:\Users\Admin\AppData\Local\Temp\04224614cf64a00956257cfb05308159a7f1f6a8aaead50d62448628cef98aa2.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1896
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04224614cf64a00956257cfb05308159a7f1f6a8aaead50d62448628cef98aa2.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:920
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3032
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3396
  • 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:1792
  • 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:4044

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    f5f34697568fd898c2c064b573c34743

    SHA1

    454679d46524c0f6ba8829b5d51aac8704c96d29

    SHA256

    e1ce2af1fbe5d7b537c8e07f44b27e1975ad64e00defba4812d364fd57fcac2c

    SHA512

    91a6326df0f3d406add9dba844cd6c2832f5c83b58a61e642c9368c6278b2d2c4596de4df40cf86c8845595a1115eed3f682a3d9b22a2804b6dfc4d78caca393

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

    f5f34697568fd898c2c064b573c34743

    SHA1

    454679d46524c0f6ba8829b5d51aac8704c96d29

    SHA256

    e1ce2af1fbe5d7b537c8e07f44b27e1975ad64e00defba4812d364fd57fcac2c

    SHA512

    91a6326df0f3d406add9dba844cd6c2832f5c83b58a61e642c9368c6278b2d2c4596de4df40cf86c8845595a1115eed3f682a3d9b22a2804b6dfc4d78caca393