Analysis

  • max time kernel
    179s
  • max time network
    172s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 09:48

General

  • Target
    Contract9021_06_07_26.exe
  • Size 833KB
  • Sample260706-ls5ppahs7q
  • SHA256 37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 109.248.150.234:443

Mutex
  • 70vLmgcqMEnUJOeL

Attributes
  • Install_directory

    %AppData%

  • install_file

    bin.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 1 IoCs
  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 4 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
  • Executes dropped EXE 7 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • SmartAssembly .NET packer 1 IoCs

    Detects SmartAssembly .NET packer.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Contract9021_06_07_26.exe
    "C:\Users\Admin\AppData\Local\Temp\Contract9021_06_07_26.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3220
    • C:\Users\Admin\AppData\Local\Temp\Contract9021_06_07_26.exe
      "C:\Users\Admin\AppData\Local\Temp\Contract9021_06_07_26.exe"
      2⤵
      • Drops startup file
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:5848
      • 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\Contract9021_06_07_26.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1896
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Contract9021_06_07_26.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4464
      • 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\bin.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2440
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'bin.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3536
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "bin" /tr "C:\Users\Admin\AppData\Roaming\bin.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:6060
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /target:exe /out:"C:\Users\Admin\AppData\Local\Temp\Contract9021_06_07_26.exe" "C:\Users\Admin\AppData\Local\Temp\guardian_src_0c89f0428523474ebce4d57b5132955f.cs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:988
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES2EF.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC53FC42EBFFB84E40866D6EC5C463272.TMP"
          4⤵
            PID:3872
    • C:\Users\Admin\AppData\Roaming\bin.exe
      C:\Users\Admin\AppData\Roaming\bin.exe
      1⤵
      • Modifies Windows Defender DisableAntiSpyware settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3492
      • C:\Users\Admin\AppData\Roaming\bin.exe
        "C:\Users\Admin\AppData\Roaming\bin.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5788
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:2996
      • C:\Users\Admin\AppData\Roaming\bin.exe
        "C:\Users\Admin\AppData\Roaming\bin.exe"
        1⤵
        • Modifies Windows Defender DisableAntiSpyware settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5976
        • C:\Users\Admin\AppData\Roaming\bin.exe
          "C:\Users\Admin\AppData\Roaming\bin.exe"
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1232
      • C:\Users\Admin\AppData\Roaming\bin.exe
        "C:\Users\Admin\AppData\Roaming\bin.exe"
        1⤵
        • Modifies Windows Defender DisableAntiSpyware settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3912
        • C:\Users\Admin\AppData\Roaming\bin.exe
          "C:\Users\Admin\AppData\Roaming\bin.exe"
          2⤵
          • Executes dropped EXE
          PID:3740
        • C:\Users\Admin\AppData\Roaming\bin.exe
          "C:\Users\Admin\AppData\Roaming\bin.exe"
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:5676

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 21KB
            • SHA256 2408151b467e8fb35862f559746d329917b30098500c6191c22c20849d8b3416
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 21KB
            • SHA256 6446c997c5863e63e6d8f2473d015c4c485d7d07959c1205edf04246f68cfc43
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 21KB
            • SHA256 b7ffffb37ac249edcdee8a68110190f7cade020330c6e144a3cf059d124e4182
            • MD5 SHA1 SHA512 SSDEEP TLSH

            RES2EF.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RES2EF.tmp
            • Size 1KB
            • SHA256 66088309f42fd64e61564cc6604eec1b292fe5dddf690fe8866416199e70a83b
            • MD5 SHA1 SHA512 TLSH

            __PSScriptPolicyTest_b0vkabmy.jct.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b0vkabmy.jct.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            bin.exe

            • Path C:\Users\Admin\AppData\Roaming\bin.exe
            • Size 833KB
            • SHA256 37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CSC53FC42EBFFB84E40866D6EC5C463272.TMP

            • Path \??\c:\Users\Admin\AppData\Local\Temp\CSC53FC42EBFFB84E40866D6EC5C463272.TMP
            • Size 1KB
            • SHA256 171c5cd3554d5f2a55194a07eee017319231355333c22b16e2888039e0487793
            • MD5 SHA1 SHA512 TLSH

            guardian_src_0c89f0428523474ebce4d57b5132955f.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\guardian_src_0c89f0428523474ebce4d57b5132955f.cs
            • Size 4KB
            • SHA256 3ee1bf1ab210527e7543dc78ca3511904bf7770d571eb0d11746edd9f5bf814a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1896-14-0x0000000002D90000-0x0000000002DC6000-memory.dmp

            memory/1896-38-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/1896-36-0x0000000007B90000-0x0000000007C26000-memory.dmp

            memory/1896-35-0x0000000007990000-0x000000000799A000-memory.dmp

            memory/1896-34-0x0000000007920000-0x000000000793A000-memory.dmp

            memory/1896-33-0x0000000007F60000-0x00000000085DC000-memory.dmp

            memory/1896-32-0x00000000077C0000-0x0000000007863000-memory.dmp

            memory/1896-16-0x0000000005C10000-0x000000000625A000-memory.dmp

            memory/1896-15-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/1896-17-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/1896-18-0x00000000058E0000-0x0000000005902000-memory.dmp

            memory/1896-19-0x0000000005980000-0x00000000059E6000-memory.dmp

            memory/1896-22-0x0000000005A60000-0x0000000005AC6000-memory.dmp

            memory/1896-23-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/1896-24-0x0000000006260000-0x00000000065BB000-memory.dmp

            memory/1896-25-0x00000000065C0000-0x00000000065DE000-memory.dmp

            memory/1896-26-0x0000000006600000-0x000000000664C000-memory.dmp

            memory/1896-27-0x0000000007780000-0x00000000077B6000-memory.dmp

            memory/1896-28-0x0000000071160000-0x00000000711AC000-memory.dmp

            memory/1896-31-0x0000000006B80000-0x0000000006BA0000-memory.dmp

            memory/2440-51-0x0000000071160000-0x00000000711AC000-memory.dmp

            memory/3220-4-0x00000000050F0000-0x00000000050FA000-memory.dmp

            memory/3220-5-0x0000000005260000-0x00000000052FC000-memory.dmp

            memory/3220-1-0x0000000000620000-0x00000000006F6000-memory.dmp

            memory/3220-10-0x0000000007970000-0x0000000007A16000-memory.dmp

            memory/3220-9-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/3220-2-0x0000000005640000-0x0000000005BFA000-memory.dmp

            memory/3220-8-0x0000000074EC2000-0x0000000074EC3000-memory.dmp

            memory/3220-3-0x0000000005120000-0x00000000051B2000-memory.dmp

            memory/3220-0-0x0000000074EC2000-0x0000000074EC3000-memory.dmp

            memory/3220-7-0x0000000005610000-0x000000000562C000-memory.dmp

            memory/3220-12-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/3220-6-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/3536-58-0x0000000071160000-0x00000000711AC000-memory.dmp

            memory/4464-44-0x0000000071160000-0x00000000711AC000-memory.dmp

            memory/4464-39-0x0000000005D20000-0x000000000607B000-memory.dmp

            memory/5848-43-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/5848-69-0x0000000007FF0000-0x000000000806C000-memory.dmp

            memory/5848-70-0x0000000007F30000-0x0000000007F38000-memory.dmp

            memory/5848-13-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/5848-66-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/5848-11-0x0000000000400000-0x0000000000410000-memory.dmp

            memory/5848-78-0x0000000074EB0000-0x000000007566C000-memory.dmp

            memory/5848-79-0x0000000008D60000-0x0000000008F22000-memory.dmp