Analysis

  • max time kernel
    157s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:45

General

  • Target

    0cad357cc901a68ce19401e1e6bb2ed3e4fb66f5ee8a676ef91a1d0a518ae4a4.exe

  • Size

    216KB

  • MD5

    3354d7efbc9a134d498d180f2bdb02b3

  • SHA1

    50951d86b99a6d0795e6e347cf8e114a3fa45805

  • SHA256

    0cad357cc901a68ce19401e1e6bb2ed3e4fb66f5ee8a676ef91a1d0a518ae4a4

  • SHA512

    4bdb961e4027be937fb0b04825fe640bb1fc81fb0c94e533f3b425229fdd101d40b69b79580f56c7e5ccb055beca106a4594a23e9031b0ab765a9b42b3ee78d0

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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 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\0cad357cc901a68ce19401e1e6bb2ed3e4fb66f5ee8a676ef91a1d0a518ae4a4.exe
    "C:\Users\Admin\AppData\Local\Temp\0cad357cc901a68ce19401e1e6bb2ed3e4fb66f5ee8a676ef91a1d0a518ae4a4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4068
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0cad357cc901a68ce19401e1e6bb2ed3e4fb66f5ee8a676ef91a1d0a518ae4a4.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3500
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3472
  • 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:816
  • 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:3984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    4e7ed290d4912ae9a0e3fb91f8ba4863

    SHA1

    453cc308fc74771361510a99a3db741be7787b7f

    SHA256

    86e471a991a5a2d766ed6f7dba399ffdbfbc44e6ce0b9ef0c88aa0fede23cb85

    SHA512

    f29b5b6779932f1681da17bcc96ea9b6513598a023d3ca0e0cab8367ef89ab62a187fda418b1360fcc3d5801e487e9ba72282b94443c686aad6b84a1c35a7991

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

    MD5

    4e7ed290d4912ae9a0e3fb91f8ba4863

    SHA1

    453cc308fc74771361510a99a3db741be7787b7f

    SHA256

    86e471a991a5a2d766ed6f7dba399ffdbfbc44e6ce0b9ef0c88aa0fede23cb85

    SHA512

    f29b5b6779932f1681da17bcc96ea9b6513598a023d3ca0e0cab8367ef89ab62a187fda418b1360fcc3d5801e487e9ba72282b94443c686aad6b84a1c35a7991

  • memory/644-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4068-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB