Analysis

  • max time kernel
    300s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/08/2024, 14:21

General

  • Target
    xeno rat server.exe
  • Size 2.0MB
  • Sample240813-rn2ecsybph
  • SHA256 3d00a800474ddf382212e003222805bd74665b69cec43b554f91c3cd9edf04c4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xenorat

C2
  • 127.0.0.1

Mutex
  • BLACK

Attributes
  • delay

    5000

  • install_path

    appdata

  • port

    8888

  • startup_name

    windows

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Modifies registry class 52 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\xeno rat server.exe
    "C:\Users\Admin\AppData\Local\Temp\xeno rat server.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3880
  • C:\Users\Admin\Desktop\die.exe
    "C:\Users\Admin\Desktop\die.exe"
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Users\Admin\AppData\Roaming\XenoManager\die.exe
      "C:\Users\Admin\AppData\Roaming\XenoManager\die.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "windows" /XML "C:\Users\Admin\AppData\Local\Temp\tmp43C6.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2704
  • C:\Users\Admin\Desktop\die.exe
    "C:\Users\Admin\Desktop\die.exe"
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "windows" /XML "C:\Users\Admin\AppData\Local\Temp\tmp66DE.tmp" /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3568
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c start "" "%windir%\system32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4840
      • C:\Windows\system32\fodhelper.exe
        "C:\Windows\system32\fodhelper.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4132
        • C:\Users\Admin\Desktop\die.exe
          "C:\Users\Admin\Desktop\die.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4944
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /Create /TN "windows" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB387.tmp" /F
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3048
    • C:\Users\Admin\Desktop\die.exe
      "C:\Users\Admin\Desktop\die.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4184
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "windows" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD93F.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3384

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        die.exe.log

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

        tmp43C6.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp43C6.tmp
        • Size 1KB
        • SHA256 eb4e925135a76337f45795562600d60868c9d1f70baaea0fed7d0e136dfc3dd1
        • MD5 SHA1 SHA512

        tmp66DE.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp66DE.tmp
        • Size 1KB
        • SHA256 1a140e864da2ef3de5017299a798f4b3fadf94d72348fa8c3fb389813378212e
        • MD5 SHA1 SHA512

        die.exe

        • Path C:\Users\Admin\Desktop\die.exe
        • Size 45KB
        • SHA256 3c7e514191f1576bd8fcb8e150d46a4cf3426477a078c9c266cc59b41cd1917c
        • MD5 SHA1 SHA512 SSDEEP

        memory/116-52-0x0000000006190000-0x00000000061F6000-memory.dmp

        memory/1612-49-0x0000000074A00000-0x00000000751B0000-memory.dmp

        memory/1612-36-0x0000000074A00000-0x00000000751B0000-memory.dmp

        memory/1612-34-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

        memory/2120-65-0x0000000000F20000-0x0000000000F2A000-memory.dmp

        memory/2120-64-0x0000000006310000-0x0000000006322000-memory.dmp

        memory/2120-57-0x0000000005CB0000-0x0000000005CBC000-memory.dmp

        memory/3880-10-0x0000000009B00000-0x0000000009BB2000-memory.dmp

        memory/3880-4-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

        memory/3880-15-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

        memory/3880-16-0x0000000074A00000-0x00000000751B0000-memory.dmp

        memory/3880-18-0x0000000074A00000-0x00000000751B0000-memory.dmp

        memory/3880-21-0x0000000000B50000-0x0000000000C74000-memory.dmp

        memory/3880-22-0x0000000000C90000-0x0000000000CAA000-memory.dmp

        memory/3880-11-0x0000000007A80000-0x0000000007DD4000-memory.dmp

        memory/3880-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

        memory/3880-9-0x0000000009920000-0x0000000009942000-memory.dmp

        memory/3880-8-0x0000000007A20000-0x0000000007A32000-memory.dmp

        memory/3880-7-0x0000000007A00000-0x0000000007A1A000-memory.dmp

        memory/3880-6-0x0000000005620000-0x0000000005634000-memory.dmp

        memory/3880-5-0x0000000074A00000-0x00000000751B0000-memory.dmp

        memory/3880-54-0x000000000C1A0000-0x000000000C1B2000-memory.dmp

        memory/3880-13-0x0000000074A00000-0x00000000751B0000-memory.dmp

        memory/3880-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

        memory/3880-2-0x0000000005670000-0x0000000005C14000-memory.dmp

        memory/3880-1-0x0000000000320000-0x0000000000522000-memory.dmp

        memory/4184-66-0x00000000015C0000-0x00000000015D2000-memory.dmp

        memory/4184-67-0x00000000067C0000-0x00000000068BA000-memory.dmp

        memory/4184-68-0x0000000006A90000-0x0000000006C52000-memory.dmp

        memory/4184-69-0x0000000006910000-0x0000000006960000-memory.dmp

        memory/4184-70-0x00000000069E0000-0x0000000006A56000-memory.dmp

        memory/4184-71-0x0000000007190000-0x00000000076BC000-memory.dmp

        memory/4184-72-0x0000000006C90000-0x0000000006CAE000-memory.dmp

        memory/4184-74-0x0000000006E60000-0x0000000006EFC000-memory.dmp

        memory/4184-95-0x0000000006740000-0x000000000674A000-memory.dmp

        memory/4184-96-0x0000000006750000-0x000000000675A000-memory.dmp