Analysis

  • max time kernel
    52s
  • max time network
    65s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 08:37

General

  • Target

    New folder/Fixer.exe

  • Size

    45KB

  • MD5

    5ef7344600895b2f13d5d8e44537d946

  • SHA1

    bdf05e86b0c923a0c1edead40cc50819b185d4c0

  • SHA256

    50866224673bc35d89ba701eaf3e794f452fecf308e9fab36be21fe8c486a9d0

  • SHA512

    9563e4b2c98e3ccc8b47c9739a9a74680c9782f1bd18d67c80fb5f85e6bc667df72978b3d7858ddb30ba522d574215b720a2792b7e9e6d34759d0cdc2eb43c69

  • SSDEEP

    768:OdhO/poiiUcjlJInMzH9Xqk5nWEZ5SbTDadWI7CPW5h:Yw+jjgnuH9XqcnW85SbTMWI5

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    1

  • install_path

    appdata

  • port

    69

  • startup_name

    System-33

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New folder\Fixer.exe
    "C:\Users\Admin\AppData\Local\Temp\New folder\Fixer.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4284
    • C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe
      "C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "System-33" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE5E.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4820
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1780
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
      1⤵
        PID:4884

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpBE5E.tmp

        Filesize

        1KB

        MD5

        2ab093f77a33e7004e362f78c87763a8

        SHA1

        2a4dcef9285dd583a33c1c5195cac7a37daee193

        SHA256

        4691f336ef4ce21e9f11416ab10393a8d4760db2025cfc0bd59acc25e018e234

        SHA512

        343b32e2048b259717e04dd98ef8900f3951ca79169947f1ed642b76965d95d517bd5a7878897aee21bd4350ac96aa1240e9d7e86e0fb53b05e28da716e95d3f

      • C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe

        Filesize

        45KB

        MD5

        5ef7344600895b2f13d5d8e44537d946

        SHA1

        bdf05e86b0c923a0c1edead40cc50819b185d4c0

        SHA256

        50866224673bc35d89ba701eaf3e794f452fecf308e9fab36be21fe8c486a9d0

        SHA512

        9563e4b2c98e3ccc8b47c9739a9a74680c9782f1bd18d67c80fb5f85e6bc667df72978b3d7858ddb30ba522d574215b720a2792b7e9e6d34759d0cdc2eb43c69

      • memory/3000-15-0x0000000074500000-0x0000000074CB0000-memory.dmp

        Filesize

        7.7MB

      • memory/3000-16-0x0000000074500000-0x0000000074CB0000-memory.dmp

        Filesize

        7.7MB

      • memory/3000-18-0x0000000074500000-0x0000000074CB0000-memory.dmp

        Filesize

        7.7MB

      • memory/4284-0-0x000000007450E000-0x000000007450F000-memory.dmp

        Filesize

        4KB

      • memory/4284-1-0x0000000000B10000-0x0000000000B22000-memory.dmp

        Filesize

        72KB