Analysis

  • max time kernel
    144s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2023 03:53

General

  • Target

    NEAS.85c76584a43e616210ec95497ef10f80.exe

  • Size

    72KB

  • MD5

    85c76584a43e616210ec95497ef10f80

  • SHA1

    13f8fa9c043fb4c05fc46c795373866f7dcf4b9b

  • SHA256

    46f9d7d9716e66a5b7ed4600d5b0ffcdf9441322130558833af8879c34973245

  • SHA512

    f55daa86a0186936f14ee9c53d8ff84b0bb6016820f0aadf596b46ed43830df222011e24cbb34cb5c460f85ed9ac139b0e9e3ddcdabdafaa46425fdc76a730b7

  • SSDEEP

    768:ehSksandb4GgyMsp4hyYtoVxYGm1ZAfPsED3VK2+ZtyOjgO4r9vFAg2rql:eTsGpehyYtkYvnEYTjipvF2Y

Malware Config

Extracted

Family

sakula

C2

http://vpn.premrera.com:443/viewpre.asp?cstring=%s&tom=%d&id=%d

http://vpn.premrera.com:443/photo/%s.jpg?id=%d

http://173.254.226.212:443/viewpre.asp?cstring=%s&tom=%d&id=%d

http://173.254.226.212:443/photo/%s.jpg?id=%d

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.85c76584a43e616210ec95497ef10f80.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.85c76584a43e616210ec95497ef10f80.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "MicroMedia" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2956
      • C:\Windows\SysWOW64\reg.exe
        reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "MicroMedia" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe"
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:4108
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
        C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
        3⤵
        • Executes dropped EXE
        PID:524
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 & del "C:\Users\Admin\AppData\Local\Temp\NEAS.85c76584a43e616210ec95497ef10f80.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    72KB

    MD5

    829ef6cf118cd367d148403e2a44c15e

    SHA1

    41d39c1d50e202cf81c4eadc35c70f600a9c0636

    SHA256

    55eb2db3419c01d7a4909da038a31ca84c4ccda988c0da7f2ae45bff5933b809

    SHA512

    4355a393f3045b8aa5731150dfb270bc50e7b523c7bb2a6ba180f38c6c6aae47741d879f5af083d5c52a019b16847b2ff70e435878734ed064c82196447cac56

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

    72KB

    MD5

    829ef6cf118cd367d148403e2a44c15e

    SHA1

    41d39c1d50e202cf81c4eadc35c70f600a9c0636

    SHA256

    55eb2db3419c01d7a4909da038a31ca84c4ccda988c0da7f2ae45bff5933b809

    SHA512

    4355a393f3045b8aa5731150dfb270bc50e7b523c7bb2a6ba180f38c6c6aae47741d879f5af083d5c52a019b16847b2ff70e435878734ed064c82196447cac56

  • memory/524-8-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/4068-0-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/4068-1-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/4068-2-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB

  • memory/4068-4-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB