Analysis

  • max time kernel
    159s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:49

General

  • Target

    0c9577428e8309f347c60ec09ffd783d9ca61893a8b7fcd6b17867a4596349e2.exe

  • Size

    188KB

  • MD5

    b5fccde26da0806e4ff89bfd58ad2932

  • SHA1

    0476ba5a48f259384ffaec3d057cabcf29653add

  • SHA256

    0c9577428e8309f347c60ec09ffd783d9ca61893a8b7fcd6b17867a4596349e2

  • SHA512

    492601f6147a02f62062017e29dbbc31d3c96fc255aeb09fd525ccf32db7c7408a91cf4ee55d8e1c73c4899533954f11f231fb7fa21306ef99ae4da4a8869389

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 51 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\0c9577428e8309f347c60ec09ffd783d9ca61893a8b7fcd6b17867a4596349e2.exe
    "C:\Users\Admin\AppData\Local\Temp\0c9577428e8309f347c60ec09ffd783d9ca61893a8b7fcd6b17867a4596349e2.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3452
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1464
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c9577428e8309f347c60ec09ffd783d9ca61893a8b7fcd6b17867a4596349e2.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3408
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:1820
  • 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:1212
  • 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:1220

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    aeafbe0e17dcf4cf0ff4bbdf558d7737

    SHA1

    1c3ad91b4d131f83c43942b8f351c120fca62cfd

    SHA256

    8b7ec274392e2734e854108a933bd011c58f3d698fc59c21b9494876b816481b

    SHA512

    4e1420d89ad50d6d4fc1c50974976a686da417cc918e2e590c80b0dd081f3c945402e91750b6d20e62fb4e2d291877be41b0e8f439642a4bc0ab1283439c3c6d

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

    MD5

    aeafbe0e17dcf4cf0ff4bbdf558d7737

    SHA1

    1c3ad91b4d131f83c43942b8f351c120fca62cfd

    SHA256

    8b7ec274392e2734e854108a933bd011c58f3d698fc59c21b9494876b816481b

    SHA512

    4e1420d89ad50d6d4fc1c50974976a686da417cc918e2e590c80b0dd081f3c945402e91750b6d20e62fb4e2d291877be41b0e8f439642a4bc0ab1283439c3c6d

  • memory/3452-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB