Analysis

  • max time kernel
    170s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:42

General

  • Target

    093f4c1daf23832f07a0d60f1b7c6a11407f6d93665d7281e860633d5e8a0144.exe

  • Size

    220KB

  • MD5

    9a09b9f424267d8602977279775dd3f6

  • SHA1

    8ad8b470797fae222929030d45df093d2eed36e8

  • SHA256

    093f4c1daf23832f07a0d60f1b7c6a11407f6d93665d7281e860633d5e8a0144

  • SHA512

    df6bd0f37f1c1e73bb36d3d4cab8d09f8fe1cd55320771212f743d4c9cda00ff5c4e05b4a0d8872671e6231760d21fea798c6980a103d4d4a37a1307d09bee4f

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 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 49 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\093f4c1daf23832f07a0d60f1b7c6a11407f6d93665d7281e860633d5e8a0144.exe
    "C:\Users\Admin\AppData\Local\Temp\093f4c1daf23832f07a0d60f1b7c6a11407f6d93665d7281e860633d5e8a0144.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3936
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\093f4c1daf23832f07a0d60f1b7c6a11407f6d93665d7281e860633d5e8a0144.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3212
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:920
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3372
  • 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:2664
  • 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:3112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    037d6d1d5aa67bb4309a9dc129c2ad47

    SHA1

    b247d510d87a2093a3c12ead258886f78f0f4ffa

    SHA256

    a83ad7291fe05eb9522882d5986dd91633054aee4f55678f4b3cea0054e4b535

    SHA512

    185ea17145b30d3646dddf7cbcbdc1496d525f5ef96e39b16b868cd6879b03963b8b48267fac82bf3a92107f5b3352ad1ca7102495746050d33ac08b60439e6f

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    037d6d1d5aa67bb4309a9dc129c2ad47

    SHA1

    b247d510d87a2093a3c12ead258886f78f0f4ffa

    SHA256

    a83ad7291fe05eb9522882d5986dd91633054aee4f55678f4b3cea0054e4b535

    SHA512

    185ea17145b30d3646dddf7cbcbdc1496d525f5ef96e39b16b868cd6879b03963b8b48267fac82bf3a92107f5b3352ad1ca7102495746050d33ac08b60439e6f

  • memory/3936-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB