Analysis

  • max time kernel
    175s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:41

General

  • Target

    11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe

  • Size

    176KB

  • MD5

    a7099c7775e5355035f26adff3f2f2d8

  • SHA1

    63082c541419e0acc33d884aa8baa56abcc77ca8

  • SHA256

    11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520

  • SHA512

    d9d834a43de3a387778a84d42f54e68c7b85ce32985bfccc54250056709aeed7a16a489549dbd5f2326085ca72a0be30c31b51cdf514a075881fc2e47421bdb3

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 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 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\11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe
    "C:\Users\Admin\AppData\Local\Temp\11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3432
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2168
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3692
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3044
  • 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:1392
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3012
  • 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:2188

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    f165b275e78c03e25deecfb124b5cf13

    SHA1

    3bed3b6c6e9cb0ca8b87430ed1fbb715b72e3a1c

    SHA256

    c51ec7c75459fddbba4284708063450d5a8c179a9fce6423a3db2f99cf2b50aa

    SHA512

    31c1f7bfa93ca143da76be0aa0e82a3ea56c518dcda74018647a672e55b5505a97d491db2086e90a7d35626ed2490ba33ffaddea7e70ac19bc0e725f5dc56331

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

    MD5

    f165b275e78c03e25deecfb124b5cf13

    SHA1

    3bed3b6c6e9cb0ca8b87430ed1fbb715b72e3a1c

    SHA256

    c51ec7c75459fddbba4284708063450d5a8c179a9fce6423a3db2f99cf2b50aa

    SHA512

    31c1f7bfa93ca143da76be0aa0e82a3ea56c518dcda74018647a672e55b5505a97d491db2086e90a7d35626ed2490ba33ffaddea7e70ac19bc0e725f5dc56331

  • memory/3432-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB