Overview

overview

10

Static

static

3

x/X_Attacker.exe

windows7-x64

10

x/X_Attacker.exe

windows10-2004-x64

10

x/data/Main.exe

windows7-x64

7

x/data/Main.exe

windows10-2004-x64

7

x/data/boot.bat

windows7-x64

7

x/data/boot.bat

windows10-2004-x64

1

x/data/sms.exe

windows7-x64

10

x/data/sms.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • submitted
    04/06/2024, 20:03

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General

  • Target
    x/data/sms.exe
  • Sample240604-ysp1fsae73
Score
10/10
xredxwormbackdoordiscoveryexecutionpersistencepyinstallerrattrojan

Malware Config

Extracted

Family

  • xred

C2

  • xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Extracted

Family

  • xworm

Version

  • 5.0

C2

  • 89.213.177.171:7000

Mutex

  • Y84cQ8sTyNg3D9Ue

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    VLC_Medai.exe

aes.plain

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xred

    Xred is backdoor written in Delphi.

    backdoorxred
  • Xred family
    xred
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Drops startup file 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Detects Pyinstaller 1 IoCs
    pyinstaller
  • 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.

    discovery
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\x\data\sms.exe
    "C:\Users\Admin\AppData\Local\Temp\x\data\sms.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Users\Admin\AppData\Local\Temp\x\data\._cache_sms.exe
      "C:\Users\Admin\AppData\Local\Temp\x\data\._cache_sms.exe"
      2⤵
      • Executes dropped EXE
      PID:1732
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Users\Admin\AppData\Local\Temp\x\data\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\x\data\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2576
        • C:\Users\Admin\AppData\Roaming\sms.exe
          "C:\Users\Admin\AppData\Roaming\sms.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:988
          • C:\Users\Admin\AppData\Roaming\sms.exe
            "C:\Users\Admin\AppData\Roaming\sms.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2948
        • C:\Users\Admin\AppData\Roaming\api.exe
          "C:\Users\Admin\AppData\Roaming\api.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:812
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\api.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2700
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'api.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1776
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\VLC_Medai.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:852
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VLC_Medai.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:840
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2056

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Synaptics.exe
        • Path C:\ProgramData\Synaptics\Synaptics.exe
        • Size 9.3MB
        • SHA256 0c2e058f82341a8b2b4460cd0bdbf2ed9156295e5e9a64b68aa320b817f2fb1d
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        python312.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI9882\python312.dll
        • Size 6.6MB
        • SHA256 c98ba3354a7d1f69bdca42560feec933ccba93afcc707391049a065e1079cddb
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        dHY2oHyU.xlsm
        • Path C:\Users\Admin\AppData\Local\Temp\dHY2oHyU.xlsm
        • Size 17KB
        • SHA256 8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        HB6RACXIKY0264ULELYB.temp
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HB6RACXIKY0264ULELYB.temp
        • Size 7KB
        • SHA256 b41c2a6259205e5b535d26bddec1a382c961507fde80bf2084a0ced30d78d505
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        api.exe
        • Path C:\Users\Admin\AppData\Roaming\api.exe
        • Size 50KB
        • SHA256 a0ae2e320fb5decbe74a6e244a72aec0910698b6adb1af8e6231839d8bfdf6ea
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        sms.exe
        • Path C:\Users\Admin\AppData\Roaming\sms.exe
        • Size 8.4MB
        • SHA256 aba6f840e2fdff76e560d6262fdf6614ef99fad5e7990690eb4bdfc0dfa8da79
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ._cache_sms.exe
        • Path \Users\Admin\AppData\Local\Temp\x\data\._cache_sms.exe
        • Size 8.6MB
        • SHA256 efb134deb93a04c7a7a5c8d00bf7b393c008c23d6016d2ad3aa92959b88e7603
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/812-70-0x0000000001010000-0x0000000001022000-memory.dmp
        Download

        memory/1656-173-0x0000000000400000-0x0000000000D4E000-memory.dmp
        Download

        memory/1656-138-0x0000000000400000-0x0000000000D4E000-memory.dmp
        Download

        memory/1656-137-0x0000000000400000-0x0000000000D4E000-memory.dmp
        Download

        memory/1656-71-0x0000000000400000-0x0000000000D4E000-memory.dmp
        Download

        memory/1732-28-0x0000000000FC0000-0x0000000001854000-memory.dmp
        Download

        memory/1776-84-0x0000000002760000-0x0000000002768000-memory.dmp
        Download

        memory/1776-83-0x000000001B600000-0x000000001B8E2000-memory.dmp
        Download

        memory/2056-95-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Download

        memory/2204-0-0x0000000000220000-0x0000000000221000-memory.dmp
        Download

        memory/2204-24-0x0000000000400000-0x0000000000D4E000-memory.dmp
        Download

        memory/2576-36-0x00000000001E0000-0x0000000000A74000-memory.dmp
        Download

        memory/2700-77-0x00000000021D0000-0x00000000021D8000-memory.dmp
        Download

        memory/2700-76-0x000000001B750000-0x000000001BA32000-memory.dmp
        Download