Analysis

  • max time kernel
    151s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:47

General

  • Target

    11ae10e3deaa83e1ec49e0140f48892ac4132c267fc4e42122b6e26351a7908c.exe

  • Size

    36KB

  • MD5

    6666d4a7432496aab72f68e830df2eb7

  • SHA1

    12249e65f7564a4a73e8b654cc5621e0db66d131

  • SHA256

    11ae10e3deaa83e1ec49e0140f48892ac4132c267fc4e42122b6e26351a7908c

  • SHA512

    4d813a9d0702a53348f58e621e548b3e8c43b2535b6a9f526ea794dc87d8465620b248c29cdfea88ba00581a49f3c42d7e0886c59bdc9c7ab9bdec6e74b8386c

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 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\11ae10e3deaa83e1ec49e0140f48892ac4132c267fc4e42122b6e26351a7908c.exe
    "C:\Users\Admin\AppData\Local\Temp\11ae10e3deaa83e1ec49e0140f48892ac4132c267fc4e42122b6e26351a7908c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3124
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\11ae10e3deaa83e1ec49e0140f48892ac4132c267fc4e42122b6e26351a7908c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1860
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1128
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1304
  • 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:3004
  • 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:1384

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    f0b356bf2cc7d26e56d2edb7cc630286

    SHA1

    579e9f610083c4e86f4f6b9b4c8afb6dabe794ac

    SHA256

    6bab5dc8a900f223bfe7c180ca9f70e1888e181c4892d10dd4dbb3a647559d2e

    SHA512

    647335e12aeaa57184955b4e9a46f1d07b43067591871542ada5f01f52fd8d717b0b95bfbe68ec0527ff5e9087732f4150ba891e25ae3231e7b5282495a3aeca

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

    MD5

    f0b356bf2cc7d26e56d2edb7cc630286

    SHA1

    579e9f610083c4e86f4f6b9b4c8afb6dabe794ac

    SHA256

    6bab5dc8a900f223bfe7c180ca9f70e1888e181c4892d10dd4dbb3a647559d2e

    SHA512

    647335e12aeaa57184955b4e9a46f1d07b43067591871542ada5f01f52fd8d717b0b95bfbe68ec0527ff5e9087732f4150ba891e25ae3231e7b5282495a3aeca