Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    31-05-2024 01:38

General

  • Target

    cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe

  • Size

    509KB

  • MD5

    ff3aea929347d0168b02de5d2c2bcec3

  • SHA1

    fd7eaa628f424fc1384bcbd926a551c8e60740db

  • SHA256

    cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651

  • SHA512

    c5ba038472b25fa013852b57fa712a286e56a85f015b68c5e7da72ed403aa0b896deb6583407894ae76dc59e90c475a161504d55202b4b7fe774732b22793c3b

  • SSDEEP

    12288:lUrKkGdrJwKcItNXOMaFshRSxD1ulXrvNE53jHd:DcA9NEQlXTaT

Malware Config

Extracted

Family

xworm

C2

104.250.180.178:7061

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 5 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Detects Windows executables referencing non-Windows User-Agents 5 IoCs
  • 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
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe
    "C:\Users\Admin\AppData\Local\Temp\cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Users\Admin\AppData\Local\Temp\cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe
      "C:\Users\Admin\AppData\Local\Temp\cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1732
      • 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\Local\Temp\cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2820
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2132
      • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2272
      • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1204

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

    5e07f66f8bbd0c701efa856541ca11f6

    SHA1

    aa829a958b9a96a486fa643f000aeebffc9a357d

    SHA256

    f20710e19143e44f4501ee95b4b4b49cbe95eef930cdfb113854077f4678d97f

    SHA512

    59ebcf5d0ca578b7d97bd0a94b18127c9f9bbbc15efb9a12878c518473ad45f35f01972abfd7b05f4cc9c3a0256f332d93fb456f689c7638e794964eb32d7732

  • \Users\Admin\AppData\Roaming\XClient.exe

    Filesize

    509KB

    MD5

    ff3aea929347d0168b02de5d2c2bcec3

    SHA1

    fd7eaa628f424fc1384bcbd926a551c8e60740db

    SHA256

    cdec22b746d955eea4a995cc06795a0964af334d9ad48d9666fa631cf594e651

    SHA512

    c5ba038472b25fa013852b57fa712a286e56a85f015b68c5e7da72ed403aa0b896deb6583407894ae76dc59e90c475a161504d55202b4b7fe774732b22793c3b

  • memory/1636-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

    Filesize

    4KB

  • memory/1636-1-0x0000000000140000-0x00000000001C4000-memory.dmp

    Filesize

    528KB

  • memory/1636-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1636-3-0x0000000000530000-0x0000000000548000-memory.dmp

    Filesize

    96KB

  • memory/1636-4-0x0000000000550000-0x0000000000560000-memory.dmp

    Filesize

    64KB

  • memory/1636-5-0x00000000021A0000-0x00000000021F6000-memory.dmp

    Filesize

    344KB

  • memory/1636-18-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1732-14-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-16-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-12-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1732-9-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-8-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-17-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1732-7-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-6-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1732-41-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1732-42-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1732-43-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB