Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-11-2024 10:37

General

  • Target

    XWorm V5.6/XwormV5.6.exe

  • Size

    15.0MB

  • MD5

    2ff4c5a7eff1d9f19e23156dceeca4d0

  • SHA1

    d8c175bb2b968713d48b37e1d018c8736a34ea6d

  • SHA256

    198f82a2b491cb5c769d25c03ea7908161e20a9b51b585099f7088cef5c4323e

  • SHA512

    2c839576c2a9ce47b4d37325417a4055e4f8674323b6b1a558fac35628eaf32e354271936ceb8dc6a38ccc24b170cc17c08e74a994e8363831b410810d676a05

  • SSDEEP

    3072:LJKhDbtkb2D7wyOQnxZd+xYoPdLa5a47Qnx5RUUOMlv1s8W:LJKhDSbFGExYoPJatsjtlv1s8

Malware Config

Extracted

Family

xworm

C2

193.161.193.99:63603

37.4.250.173:63603

Attributes
  • Install_directory

    %AppData%

  • install_file

    XwormV6.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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XWorm V5.6\XwormV5.6.exe
    "C:\Users\Admin\AppData\Local\Temp\XWorm V5.6\XwormV5.6.exe"
    1⤵
    • Drops startup file
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3060
    • 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\Local\Temp\XWorm V5.6\XwormV5.6.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2236
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XwormV5.6.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2936
    • 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\XwormV6.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2744
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XwormV6.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    94bb17432073e9412eac7c6452408e94

    SHA1

    d925814c7f77ee20bfe0d5ad36915af5eec0c056

    SHA256

    82fe84321afeab6abbb309ce4f0010986f6cd92cbf46b4b5d561df4f0bf22704

    SHA512

    b76517dec1ff00742b58670f493ab897679f6b1054a41176c9eb6ca3b4a011dcaae13af7cb49c6dfdee23086597fc7580f167bbe2c7c2b85ad9f39b342225097

  • memory/2236-6-0x0000000002E90000-0x0000000002F10000-memory.dmp

    Filesize

    512KB

  • memory/2236-7-0x000000001B820000-0x000000001BB02000-memory.dmp

    Filesize

    2.9MB

  • memory/2236-8-0x0000000001D80000-0x0000000001D88000-memory.dmp

    Filesize

    32KB

  • memory/2936-14-0x000000001B490000-0x000000001B772000-memory.dmp

    Filesize

    2.9MB

  • memory/2936-15-0x0000000001F90000-0x0000000001F98000-memory.dmp

    Filesize

    32KB

  • memory/3060-0-0x000007FEF59D3000-0x000007FEF59D4000-memory.dmp

    Filesize

    4KB

  • memory/3060-1-0x00000000000D0000-0x00000000000F4000-memory.dmp

    Filesize

    144KB

  • memory/3060-30-0x00000000021F0000-0x0000000002270000-memory.dmp

    Filesize

    512KB

  • memory/3060-31-0x000007FEF59D3000-0x000007FEF59D4000-memory.dmp

    Filesize

    4KB

  • memory/3060-32-0x00000000021F0000-0x0000000002270000-memory.dmp

    Filesize

    512KB