Analysis

  • max time kernel
    165s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 12:49

General

  • Target

    0046fa86e5ad1bbca039b611ffb857d82b20e5be272b19b83aa1dc6c90df47c4.exe

  • Size

    80KB

  • MD5

    a6974198eb53d0e73896502c65b886bd

  • SHA1

    6e69955cb1c8985bd77ec20f440c1b0fcf527bc1

  • SHA256

    0046fa86e5ad1bbca039b611ffb857d82b20e5be272b19b83aa1dc6c90df47c4

  • SHA512

    4cce15eea75c785dbdb4f0f133f3a15cf8b02323dd4f0fa7173c7d66491d6d5574f059fd57b56e031bc45b976f6839c8d344aa1b54ebca9cc317a4e2bdf4b702

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 54 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\0046fa86e5ad1bbca039b611ffb857d82b20e5be272b19b83aa1dc6c90df47c4.exe
    "C:\Users\Admin\AppData\Local\Temp\0046fa86e5ad1bbca039b611ffb857d82b20e5be272b19b83aa1dc6c90df47c4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2500
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0046fa86e5ad1bbca039b611ffb857d82b20e5be272b19b83aa1dc6c90df47c4.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3768
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1608
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1824
  • 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:3656
  • 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:2956

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    08952c0121ca63479f2b809dae361748

    SHA1

    8bd029a5b9161c660ad7c3cc1a8c7f5b6d3b32a1

    SHA256

    a7703d2a5e41c2a4952c422bd87b2c3a9d170eae5b3a3bf6d4d0b1bc70f92ce1

    SHA512

    25891094031771dfc48a7285a04d6e6faaef40a34093748adc1ca041eda49106b2d1274ae2e62e3c358c2f9da8d1d18418a4b9a1f5d5eed78eca48c4ded637d0

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

    MD5

    08952c0121ca63479f2b809dae361748

    SHA1

    8bd029a5b9161c660ad7c3cc1a8c7f5b6d3b32a1

    SHA256

    a7703d2a5e41c2a4952c422bd87b2c3a9d170eae5b3a3bf6d4d0b1bc70f92ce1

    SHA512

    25891094031771dfc48a7285a04d6e6faaef40a34093748adc1ca041eda49106b2d1274ae2e62e3c358c2f9da8d1d18418a4b9a1f5d5eed78eca48c4ded637d0