Analysis

  • max time kernel
    594s
  • max time network
    439s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01-09-2024 08:46

General

  • Target

    Fixer/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#.

  • 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\Fixer\Fixer.exe
    "C:\Users\Admin\AppData\Local\Temp\Fixer\Fixer.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2508
    • 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:968
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "System-33" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93E3.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1240

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Fixer.exe.log

    Filesize

    226B

    MD5

    1294de804ea5400409324a82fdc7ec59

    SHA1

    9a39506bc6cadf99c1f2129265b610c69d1518f7

    SHA256

    494398ec6108c68573c366c96aae23d35e7f9bdbb440a4aab96e86fcad5871d0

    SHA512

    033905cc5b4d0c0ffab2138da47e3223765146fa751c9f84b199284b653a04874c32a23aae577d2e06ce6c6b34fec62331b5fc928e3baf68dc53263ecdfa10c1

  • C:\Users\Admin\AppData\Local\Temp\tmp93E3.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/968-16-0x0000000075220000-0x00000000759D1000-memory.dmp

    Filesize

    7.7MB

  • memory/968-17-0x0000000075220000-0x00000000759D1000-memory.dmp

    Filesize

    7.7MB

  • memory/968-19-0x0000000075220000-0x00000000759D1000-memory.dmp

    Filesize

    7.7MB

  • memory/2508-0-0x000000007522E000-0x000000007522F000-memory.dmp

    Filesize

    4KB

  • memory/2508-1-0x00000000004C0000-0x00000000004D2000-memory.dmp

    Filesize

    72KB