Analysis

  • max time kernel
    160s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:36

General

  • Target

    150d49968b3cabe018ca36455ccaebc11f9c64171a57d10a9e1ac12032214836.exe

  • Size

    89KB

  • MD5

    ed32e0bb779c7118ae06535eb52ba4a0

  • SHA1

    5c80c9787c1cc43ef7dc1aaf023cc84ad8fcc747

  • SHA256

    150d49968b3cabe018ca36455ccaebc11f9c64171a57d10a9e1ac12032214836

  • SHA512

    e2a12c9f5de4bd178f7a3196c6f31580f671c59c4723c1f46c918359526c296ff1aa60a41790d243642984842b8f5cbf0634280443c8778fa016e010bc5409e8

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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 49 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\150d49968b3cabe018ca36455ccaebc11f9c64171a57d10a9e1ac12032214836.exe
    "C:\Users\Admin\AppData\Local\Temp\150d49968b3cabe018ca36455ccaebc11f9c64171a57d10a9e1ac12032214836.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:380
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\150d49968b3cabe018ca36455ccaebc11f9c64171a57d10a9e1ac12032214836.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3436
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1888
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1576
  • 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:636
  • 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:740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    c10780a31bdb2abc776b0a63a6a659bd

    SHA1

    998721866c2495ae9e0cdcb632220c33471814ee

    SHA256

    fc3de9edc9a38072af4342bd90fa52218f6a10353eb62a80a6eb16695a9e466e

    SHA512

    1c7c44242e6b304fe9cbd8f47a05d7ab3a1727885d28e979eb2f673a81a17c6872bd0f18f37768e990c32543985caee3a15d88befe768e6e19d9efa8139bb57a

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

    MD5

    c10780a31bdb2abc776b0a63a6a659bd

    SHA1

    998721866c2495ae9e0cdcb632220c33471814ee

    SHA256

    fc3de9edc9a38072af4342bd90fa52218f6a10353eb62a80a6eb16695a9e466e

    SHA512

    1c7c44242e6b304fe9cbd8f47a05d7ab3a1727885d28e979eb2f673a81a17c6872bd0f18f37768e990c32543985caee3a15d88befe768e6e19d9efa8139bb57a