Analysis

  • max time kernel
    163s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:10

General

  • Target

    052119185c3d4e25b3ad31c55797f87c177dfe360275543e7ff91907d05e4910.exe

  • Size

    92KB

  • MD5

    de4cb1b248a589557d75b7779269bfd2

  • SHA1

    bfbe2afd3944191e24ee3bbb8cbec8bf375849e1

  • SHA256

    052119185c3d4e25b3ad31c55797f87c177dfe360275543e7ff91907d05e4910

  • SHA512

    b5a189d02f14f6f525b443cd665c4cc72f5e27c38df88e71dfe98349c4e332d60135e47ff854c0d0a2104b0046aa1370cacc6431c1e5b2234cfe9a02c1d552f1

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 56 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\052119185c3d4e25b3ad31c55797f87c177dfe360275543e7ff91907d05e4910.exe
    "C:\Users\Admin\AppData\Local\Temp\052119185c3d4e25b3ad31c55797f87c177dfe360275543e7ff91907d05e4910.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3120
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1152
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\052119185c3d4e25b3ad31c55797f87c177dfe360275543e7ff91907d05e4910.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1836
  • 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:1020
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:872
  • 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:452

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    0be5f16a147fdf37ec7a40c9fefdaf63

    SHA1

    307126725003aeb25b9d9ced087ae0770ed079a7

    SHA256

    1056edf0e1fe4805afd7e4adbe856da5c0082e502379e96569e9f7ca8c71f499

    SHA512

    86b844e641ea0787e2d574ab8803239d63a9f5569fa4d04780476c035df9b5bbd524eba63a37b4d150efd4b39c56c8240a1bf6153f1d63ac479c0685a8bf2f79

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

    0be5f16a147fdf37ec7a40c9fefdaf63

    SHA1

    307126725003aeb25b9d9ced087ae0770ed079a7

    SHA256

    1056edf0e1fe4805afd7e4adbe856da5c0082e502379e96569e9f7ca8c71f499

    SHA512

    86b844e641ea0787e2d574ab8803239d63a9f5569fa4d04780476c035df9b5bbd524eba63a37b4d150efd4b39c56c8240a1bf6153f1d63ac479c0685a8bf2f79