Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 02:54

General

  • Target
    xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe
  • Size 10.8MB
  • Sample260522-ddv8psfy8x
  • SHA256 a403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 6.tcp.eu.ngrok.io:29843

Mutex
  • n2a9kAFC9fPtli8N

Attributes
  • Install_directory

    %AppData%

  • install_file

    svhost.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 1 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 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 1 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Suspicious use of SetThreadContext 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe
    "C:\Users\Admin\AppData\Local\Temp\xa403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3732
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5308
      • 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\cvtres.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2032
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'cvtres.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4648
      • 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\svhost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4748
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5184
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Updates\winupdate.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Updates\winupdate.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3636
  • C:\Users\Admin\AppData\Roaming\svhost.exe
    C:\Users\Admin\AppData\Roaming\svhost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1384

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 4dd46624644a48a4eec2e089e2a17c799ed30b399144f94150cfe192acf6b002
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 d697256eca3cbf4695b7470c84d27d5fa93df71af89e611366369f0b5d86db94
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 87eb66fc2eb7186ab20d63534abde360b228081bdcb84bde3c6725e0cbf7b8b0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_mtxuu00a.uaj.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mtxuu00a.uaj.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        cryptor_debug.log

        • Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
        • Size 2KB
        • SHA256 0671027e0ce254c8086c6194068d3d91b068d493621ae071da12471a36822c4f
        • MD5 SHA1 SHA512 TLSH

        cryptor_debug.log

        • Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
        • Size 430B
        • SHA256 51bc365572ef10ebf133fd3f8d48316d25bcad893631a4717aa543ecb3d07780
        • MD5 SHA1 SHA512 TLSH

        cryptor_debug.log

        • Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
        • Size 3KB
        • SHA256 a6fa333ec382a70064e6eabe64dae3384df9ad4fa9958ba64606b5f318b981bd
        • MD5 SHA1 SHA512 TLSH

        cryptor_debug.log

        • Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
        • Size 3KB
        • SHA256 a542a0193d0f030a85232397e205945d23f7fa0738f1217865f2947c16727072
        • MD5 SHA1 SHA512 TLSH

        cryptor_debug.log

        • Path C:\Users\Admin\AppData\Local\Temp\cryptor_debug.log
        • Size 5KB
        • SHA256 f05d79051a0274545e6f872027a5ce710052c82b3f253ddd26cad490c6547678
        • MD5 SHA1 SHA512 SSDEEP TLSH

        winupdate.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Updates\winupdate.exe
        • Size 10.8MB
        • SHA256 a403cd8cc03aee693d587a568be64d717edf6c8c6d3e40f07199067c734153c1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svhost.exe

        • Path C:\Users\Admin\AppData\Roaming\svhost.exe
        • Size 45KB
        • SHA256 e4dbdbf7888ea96f3f8aa5c4c7f2bcf6e57d724dd8194fe5f35b673c6ef724ea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2032-130-0x0000000006D20000-0x0000000006D3A000-memory.dmp

        memory/2032-135-0x0000000006F70000-0x0000000006F85000-memory.dmp

        memory/2032-115-0x00000000054E0000-0x0000000005837000-memory.dmp

        memory/2032-116-0x00000000059D0000-0x00000000059EE000-memory.dmp

        memory/2032-117-0x0000000005A20000-0x0000000005A6C000-memory.dmp

        memory/2032-119-0x0000000006000000-0x0000000006034000-memory.dmp

        memory/2032-120-0x0000000070460000-0x00000000704AC000-memory.dmp

        memory/2032-127-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

        memory/2032-128-0x0000000006BF0000-0x0000000006C94000-memory.dmp

        memory/2032-129-0x0000000007370000-0x00000000079EA000-memory.dmp

        memory/2032-107-0x0000000004DD0000-0x0000000004E36000-memory.dmp

        memory/2032-131-0x0000000006D90000-0x0000000006D9A000-memory.dmp

        memory/2032-132-0x0000000006FC0000-0x0000000007056000-memory.dmp

        memory/2032-133-0x0000000006F30000-0x0000000006F41000-memory.dmp

        memory/2032-134-0x0000000006F60000-0x0000000006F6E000-memory.dmp

        memory/2032-108-0x0000000004E40000-0x0000000004EA6000-memory.dmp

        memory/2032-136-0x0000000007080000-0x000000000709A000-memory.dmp

        memory/2032-137-0x0000000007060000-0x0000000007068000-memory.dmp

        memory/2032-106-0x0000000004B30000-0x0000000004B52000-memory.dmp

        memory/2032-104-0x0000000000D40000-0x0000000000D76000-memory.dmp

        memory/2032-105-0x0000000004EB0000-0x00000000054DA000-memory.dmp

        memory/4648-149-0x0000000070460000-0x00000000704AC000-memory.dmp

        memory/4648-147-0x0000000005C80000-0x0000000005FD7000-memory.dmp

        memory/4748-164-0x0000000070460000-0x00000000704AC000-memory.dmp

        memory/5184-179-0x0000000070460000-0x00000000704AC000-memory.dmp

        memory/5308-52-0x0000000005510000-0x00000000055AC000-memory.dmp

        memory/5308-188-0x0000000003050000-0x0000000003060000-memory.dmp

        memory/5308-189-0x00000000062B0000-0x0000000006856000-memory.dmp

        memory/5308-190-0x0000000006190000-0x0000000006222000-memory.dmp

        memory/5308-191-0x0000000006160000-0x000000000616A000-memory.dmp

        memory/5308-47-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/5308-194-0x0000000003050000-0x0000000003060000-memory.dmp