Analysis

  • max time kernel
    157s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:50

General

  • Target

    0c8be62cb3d97eaa0eff72b8811a349ee46a9069eeeb699f44c78db9d19b5974.exe

  • Size

    92KB

  • MD5

    ba2ea182d3c65c3bad8a2e19f7555016

  • SHA1

    aaca4f45518daeb6ea5e0e26f1a45e8bb16347ca

  • SHA256

    0c8be62cb3d97eaa0eff72b8811a349ee46a9069eeeb699f44c78db9d19b5974

  • SHA512

    89ddfada28dd9f2ae604a21752a5d9fd00adea0c8414c833b23b8bff481ed0587f80964dfdd14786a76ec6d7c06fca1f701b87840131c2a5df74e200c68f6d3e

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 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\0c8be62cb3d97eaa0eff72b8811a349ee46a9069eeeb699f44c78db9d19b5974.exe
    "C:\Users\Admin\AppData\Local\Temp\0c8be62cb3d97eaa0eff72b8811a349ee46a9069eeeb699f44c78db9d19b5974.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:208
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2980
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c8be62cb3d97eaa0eff72b8811a349ee46a9069eeeb699f44c78db9d19b5974.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3920
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1944
  • 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:3792
  • 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:3784

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    120d9a01468034162bb64fe637dd08f3

    SHA1

    e8034a77d50fb99dac2a5870ee9e6d35fd88b8aa

    SHA256

    a328159c924b8a876bbe34fb3eb5ffae04f10542d5ef9693f85aab2c2d537427

    SHA512

    f0f2e01945d8b8b1c2b4e24f64d9dc9d5579c1d379540b2095995e75f5932d3fa8156d0a9a6802f0dd5b0f14b99a55bd6845260179dd09b7aba0e15106ebe46f

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

    MD5

    120d9a01468034162bb64fe637dd08f3

    SHA1

    e8034a77d50fb99dac2a5870ee9e6d35fd88b8aa

    SHA256

    a328159c924b8a876bbe34fb3eb5ffae04f10542d5ef9693f85aab2c2d537427

    SHA512

    f0f2e01945d8b8b1c2b4e24f64d9dc9d5579c1d379540b2095995e75f5932d3fa8156d0a9a6802f0dd5b0f14b99a55bd6845260179dd09b7aba0e15106ebe46f