Analysis

  • max time kernel
    363s
  • max time network
    362s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    05/06/2024, 16:59

General

  • Target
    XClient.exe
  • Size 81KB
  • Sample240605-vhw48sce2t
  • SHA256 9380c29aaccc2fcbf1734ff093b489ced5ba68006a863e25d7d601b6f8d69a52
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 3.0

C2
  • lunassworld-50930.portmap.host:50930

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 7 IoCs
  • XenArmor Suite

    XenArmor is as suite of password recovery tools for various application.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • ACProtect 1.3x - 1.4x DLL software 5 IoCs

    Detects file using ACProtect software.

  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • 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 2 TTPs

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

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2244
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2760
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2564
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2008
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c Cd %temp% && All-In-One.exe OutPut.json
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Users\Admin\AppData\Local\Temp\All-In-One.exe
        All-In-One.exe OutPut.json
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Accesses Microsoft Outlook accounts
        • Suspicious behavior: CmdExeWriteProcessMemorySpam
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:756
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /delete /f /tn "XClient"
      2⤵
        PID:3064
      • C:\Windows\system32\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp9C20.tmp.bat""
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:320
        • C:\Windows\system32\timeout.exe
          timeout 3
          3⤵
          • Delays execution with timeout.exe
          PID:1828
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {3C114659-C249-4FB6-B681-4312EC691020} S-1-5-21-2737914667-933161113-3798636211-1000:PUMARTNR\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2040
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2916
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1876
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2104
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2624
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2320

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          All-In-One.exe

          • Path C:\Users\Admin\AppData\Local\Temp\All-In-One.exe
          • Size 5.1MB
          • SHA256 baecc747370a4c396ef5403a3a2b286465d8fe4677bf1bfd23b8164ef5c22bbb
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-conio-l1-1-0_not.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-conio-l1-1-0_not.dll
          • Size 18KB
          • SHA256 9ca21763c528584bdb4efebe914faaf792c9d7360677c87e93bd7ba7bb4367f2
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-convert-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-convert-l1-1-0.dll
          • Size 21KB
          • SHA256 3cc1377d495260c380e8d225e5ee889cbb2ed22e79862d4278cfa898e58e44d1
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-environment-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-environment-l1-1-0.dll
          • Size 18KB
          • SHA256 c0d75d1887c32a1b1006b3cffc29df84a0d73c435cdcb404b6964be176a61382
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-filesystem-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-filesystem-l1-1-0.dll
          • Size 19KB
          • SHA256 7633774effe7c0add6752ffe90104d633fc8262c87871d096c2fc07c20018ed2
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-heap-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-heap-l1-1-0.dll
          • Size 18KB
          • SHA256 f5cf623ba14b017af4aec6c15eee446c647ab6d2a5dee9d6975adc69994a113d
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-locale-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-locale-l1-1-0.dll
          • Size 18KB
          • SHA256 565a2eec5449eeeed68b430f2e9b92507f979174f9c9a71d0c36d58b96051c33
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-math-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-math-l1-1-0.dll
          • Size 28KB
          • SHA256 bece7bab83a5d0ec5c35f0841cbbf413e01ac878550fbdb34816ed55185dcfed
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-multibyte-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-multibyte-l1-1-0.dll
          • Size 25KB
          • SHA256 66abf3a1147751c95689f5bc6a259e55281ec3d06d3332dd0ba464effa716735
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-runtime-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-runtime-l1-1-0.dll
          • Size 22KB
          • SHA256 c9bbc07a033bab6a828ecc30648b501121586f6f53346b1cd0649d7b648ea60b
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-stdio-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-stdio-l1-1-0.dll
          • Size 23KB
          • SHA256 b1e702b840aebe2e9244cd41512d158a43e6e9516cd2015a84eb962fa3ff0df7
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-string-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-string-l1-1-0.dll
          • Size 22KB
          • SHA256 73cc56f20268bfb329ccd891822e2e70dd70fe21fc7101deb3fa30c34a08450c
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-time-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-time-l1-1-0.dll
          • Size 20KB
          • SHA256 69885fd581641b4a680846f93c2dd21e5dd8e3ba37409783bc5b3160a919cb5d
          • MD5 SHA1 SHA512 SSDEEP

          api-ms-win-crt-utility-l1-1-0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\api-ms-win-crt-utility-l1-1-0.dll
          • Size 18KB
          • SHA256 a1d1d6b0cb0a8421d7c0d1297c4c389c95514493cd0a386b49dc517ac1b9a2b0
          • MD5 SHA1 SHA512 SSDEEP

          freebl3.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\freebl3.dll
          • Size 324KB
          • SHA256 8e5110ce03826f680f30013985be49ebd8fc672de113fc1d9a566eced149b8c4
          • MD5 SHA1 SHA512 SSDEEP

          mozglue.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\mozglue.dll
          • Size 135KB
          • SHA256 4434f4223d24fb6e2f5840dd6c1eedef2875e11abe24e4b0e9bc1507f8f6fd47
          • MD5 SHA1 SHA512 SSDEEP

          msvcp140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\msvcp140.dll
          • Size 429KB
          • SHA256 334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
          • MD5 SHA1 SHA512 SSDEEP

          nss3.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\nss3.dll
          • Size 1.2MB
          • SHA256 17f8c55eba797bbc80c8c32ca1a3a7588415984386be56f4b4cdefd4176fb4c3
          • MD5 SHA1 SHA512 SSDEEP

          softokn3.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\softokn3.dll
          • Size 140KB
          • SHA256 8f0c9ac7134773d11d402e49daa90958fe00205e83a7389f7a58da03892d20cb
          • MD5 SHA1 SHA512 SSDEEP

          vcruntime140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\ComponentsExt\vcruntime140.dll
          • Size 81KB
          • SHA256 c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
          • MD5 SHA1 SHA512 SSDEEP

          nspr4.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\Components\nspr4.dll
          • Size 72KB
          • SHA256 69e73fea2210adc2ae0837ac98b46980a09fe91c07f181a28fda195e2b9e6b71
          • MD5 SHA1 SHA512 SSDEEP

          nss3.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\Components\nss3.dll
          • Size 172KB
          • SHA256 769703fb1ba6c95fb6c889e8a9baaea309e62d0f3ca444d01cc6b495c0f722d1
          • MD5 SHA1 SHA512 SSDEEP

          plc4.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\Components\plc4.dll
          • Size 8KB
          • SHA256 2dc0171b83c406db6ec9389b438828246b282862d2b8bdf2f5b75aec932a69f7
          • MD5 SHA1 SHA512 SSDEEP

          plds4.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\Components\plds4.dll
          • Size 6KB
          • SHA256 50b2735318233d6c87b6efccccc23a0e3216d2870c67f2f193cc1c83c7c879fc
          • MD5 SHA1 SHA512 SSDEEP

          softokn3.dll

          • Path C:\Users\Admin\AppData\Local\Temp\External\Components\softokn3.dll
          • Size 155KB
          • SHA256 251f0094b6b6537df3d3ce7c2663726616f06cfb9b6de90efabd67de2179a477
          • MD5 SHA1 SHA512 SSDEEP

          License.XenArmor

          • Path C:\Users\Admin\AppData\Local\Temp\License.XenArmor
          • Size 104B
          • SHA256 76e56835b1ac5d7a8409b7333826a2353401cf67f3bd95c733adc6aa8d9fec81
          • MD5 SHA1 SHA512

          OutPut.json

          • Path C:\Users\Admin\AppData\Local\Temp\OutPut.json
          • Size 59B
          • SHA256 c148de684bfb4400bbb5e4239a4e5f28c7b068160de8ad852f7606365ce623a2
          • MD5 SHA1 SHA512

          XenManager.dll

          • Path C:\Users\Admin\AppData\Local\Temp\XenManager.dll
          • Size 2.0MB
          • SHA256 baa9c3a0d0524263c4f848056b3f1da3b4bb913162362cbcabe77ce76a39870c
          • MD5 SHA1 SHA512 SSDEEP

          settings.db

          • Path C:\Users\Admin\AppData\Local\Temp\settings.db
          • Size 20KB
          • SHA256 00c020ba1cce022364976f164c575993cb3b811c61b5b4e05a8a0c3d1b560c0c
          • MD5 SHA1 SHA512 SSDEEP

          tmp9C20.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmp9C20.tmp.bat
          • Size 159B
          • SHA256 9019799e1f8b6a7ff1daa8aa6d979eabacb04376a4a04191cbd44858ec7b40ac
          • MD5 SHA1 SHA512

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 7KB
          • SHA256 c7494049a9f07d6ef25c4fd1589295630c7b9394b22229ce55927e35ac3bfb03
          • MD5 SHA1 SHA512 SSDEEP

          XClient.exe

          • Path C:\Users\Admin\AppData\Roaming\XClient.exe
          • Size 81KB
          • SHA256 9380c29aaccc2fcbf1734ff093b489ced5ba68006a863e25d7d601b6f8d69a52
          • MD5 SHA1 SHA512 SSDEEP

          memory/1876-186-0x0000000001260000-0x000000000127A000-memory.dmp

          memory/2040-36-0x0000000000B90000-0x0000000000BAA000-memory.dmp

          memory/2244-32-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

          memory/2244-2-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

          memory/2244-239-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

          memory/2244-1-0x0000000000A40000-0x0000000000A5A000-memory.dmp

          memory/2244-0-0x000007FEF5623000-0x000007FEF5624000-memory.dmp

          memory/2244-30-0x00000000020C0000-0x00000000020CA000-memory.dmp

          memory/2244-31-0x000007FEF5623000-0x000007FEF5624000-memory.dmp

          memory/2244-40-0x000000001DD00000-0x000000001E1D4000-memory.dmp

          memory/2320-228-0x0000000000970000-0x000000000098A000-memory.dmp

          memory/2624-226-0x00000000001D0000-0x00000000001EA000-memory.dmp

          memory/2632-15-0x0000000002140000-0x0000000002148000-memory.dmp

          memory/2632-14-0x000000001B700000-0x000000001B9E2000-memory.dmp

          memory/2760-8-0x0000000002860000-0x0000000002868000-memory.dmp

          memory/2760-7-0x000000001B600000-0x000000001B8E2000-memory.dmp

          memory/2916-39-0x0000000000DA0000-0x0000000000DBA000-memory.dmp