Analysis

  • max time kernel
    136s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/08/2024, 14:51

General

  • Target
    worksithimk.exe
  • Size 46KB
  • Sample240814-r8efbsshqm
  • SHA256 0a4869f2b7d46eda43c07a1986f8cccecc36b42bf5587b146f6f6a5f119b2bb5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xenorat

C2
  • communication-sig.gl.at.ply.gg

Mutex
  • Xeno_rat_nd8912d

Attributes
  • delay

    5000

  • install_path

    temp

  • port

    3038

  • startup_name

    Java Updater

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 2 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 7 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\worksithimk.exe
    "C:\Users\Admin\AppData\Local\Temp\worksithimk.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3172
    • C:\Users\Admin\AppData\Local\Temp\XenoManager\worksithimk.exe
      "C:\Users\Admin\AppData\Local\Temp\XenoManager\worksithimk.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "Java Updater" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2B32.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4696
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /query /v /fo csv
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4608
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /delete /tn "\Java Updater" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1388
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\XenoManager\worksithimk.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1064
        • C:\Windows\SysWOW64\choice.exe
          choice /C Y /N /D Y /T 3
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2028

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        worksithimk.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\worksithimk.exe.log
        • Size 226B
        • SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
        • MD5 SHA1 SHA512

        worksithimk.exe

        • Path C:\Users\Admin\AppData\Local\Temp\XenoManager\worksithimk.exe
        • Size 46KB
        • SHA256 0a4869f2b7d46eda43c07a1986f8cccecc36b42bf5587b146f6f6a5f119b2bb5
        • MD5 SHA1 SHA512 SSDEEP

        tmp2B32.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp2B32.tmp
        • Size 1KB
        • SHA256 9f2d3e8420ee099022333b5ed8ed213f1f7af19403ef6b004e23435b4552cd63
        • MD5 SHA1 SHA512

        memory/3172-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

        memory/3172-1-0x0000000000440000-0x0000000000452000-memory.dmp

        memory/4924-15-0x0000000074D40000-0x00000000754F0000-memory.dmp

        memory/4924-18-0x0000000005E80000-0x0000000005EE6000-memory.dmp

        memory/4924-19-0x0000000074D40000-0x00000000754F0000-memory.dmp

        memory/4924-20-0x0000000074D40000-0x00000000754F0000-memory.dmp

        memory/4924-21-0x0000000074D40000-0x00000000754F0000-memory.dmp