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Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/03/2025, 06:10

General

  • Target

    52ef63d7213d2cdef68a755faf5b44bd93e1eb92fb0701b37704d243c6d4861f.exe

  • Size

    3.1MB

  • MD5

    a6dcf6d06ca5bc34e91aeb9d8113ca9e

  • SHA1

    191cf5eeeee959f8979104f4367e2bde4acd1b7d

  • SHA256

    52ef63d7213d2cdef68a755faf5b44bd93e1eb92fb0701b37704d243c6d4861f

  • SHA512

    3066c8370040e12610888872c74971ebd7ab5afc447b5c22a5d35fde7e75e087d0f67d4ade91b87793f889de49a72e72c32b5afa472e7b738974e7f53c884204

  • SSDEEP

    49152:fs/B8Y7YlTDYTT3s2AcYhqpG1Z+qlw404QhMlTtR:fsZ8yYlTkTT3ALGGn+qwcQWlr

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:8848

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • 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.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52ef63d7213d2cdef68a755faf5b44bd93e1eb92fb0701b37704d243c6d4861f.exe
    "C:\Users\Admin\AppData\Local\Temp\52ef63d7213d2cdef68a755faf5b44bd93e1eb92fb0701b37704d243c6d4861f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5012
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3232
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AppLaunch.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3804
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4436
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c timeout /t 1 && DEL /f 52ef63d7213d2cdef68a755faf5b44bd93e1eb92fb0701b37704d243c6d4861f.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5076
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    257a584976bd31f7712ab968a9882367

    SHA1

    e06baf7b0f234338dd12cb50717a9d37542c131e

    SHA256

    4605ebf242127550e10ffc35c13596a7fbdb45bf0268b9fe856bf580e2b18838

    SHA512

    4837480998796c35b01991d15b7c8b73b53302a7d7d8c8fbcdaa7377088d161937ea87af2bf6179639cba8cc52410d2a440c4e10833b33f86c3307056bee92b0

  • memory/1936-27-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-3-0x00000000749F0000-0x00000000750DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1936-12-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-19-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-21-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-4-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-29-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-5-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-17-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-25-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-31-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-33-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-35-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-39-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-41-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-43-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-45-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-47-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-49-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-37-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-55-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

    Filesize

    4KB

  • memory/1936-53-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-23-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-57-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-59-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-15-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-65-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-67-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-63-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-61-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-13-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-9-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-7-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-51-0x0000000005050000-0x0000000005221000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-40248-0x00000000749FE000-0x00000000749FF000-memory.dmp

    Filesize

    4KB

  • memory/1936-40249-0x00000000749F0000-0x00000000750DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1936-40250-0x00000000749F0000-0x00000000750DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1936-1-0x0000000000380000-0x000000000069E000-memory.dmp

    Filesize

    3.1MB

  • memory/1936-2-0x0000000005050000-0x0000000005228000-memory.dmp

    Filesize

    1.8MB

  • memory/1936-40268-0x00000000749F0000-0x00000000750DE000-memory.dmp

    Filesize

    6.9MB

  • memory/5012-40269-0x00000000749F0000-0x00000000750DE000-memory.dmp

    Filesize

    6.9MB

  • memory/5012-40267-0x00000000749F0000-0x00000000750DE000-memory.dmp

    Filesize

    6.9MB

  • memory/5012-40266-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB