Analysis

  • max time kernel
    129s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    22-06-2024 01:19

General

  • Target

    7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe

  • Size

    548KB

  • MD5

    41dc167b623d1e1d03a4eff1763774ad

  • SHA1

    c3b4c41bd9069acaff2816ddc6a99988c9eefea8

  • SHA256

    7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef

  • SHA512

    4aa6f5d3991fd6e98f1df2317fcb9d4e66b43b820c023f83d721d57550ece27403f2612cf23804baeccd3a67f76ad46838c46fa2e3910d6c7f73f2b5de6d07f8

  • SSDEEP

    12288:04L+hETMUnJEz70ABnr9vQ0nqSbBZF70hiolTm+k:3lEz70YWKB8Pl

Malware Config

Extracted

Family

xworm

C2

104.250.180.178:5414

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
  • Detects executables packed with SmartAssembly 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 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe
    "C:\Users\Admin\AppData\Local\Temp\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Local\Temp\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe
      "C:\Users\Admin\AppData\Local\Temp\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe"
      2⤵
        PID:3004
      • C:\Users\Admin\AppData\Local\Temp\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe
        "C:\Users\Admin\AppData\Local\Temp\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe"
        2⤵
        • Drops startup file
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2988
        • 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\7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3024
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2632
        • 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:2688
        • 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:2684

    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

      17d7ac19dae5741a99c557c297548723

      SHA1

      3362a15c9ed82128aaffa45c31fe56eecaa7bd0c

      SHA256

      a3c35fa227b648f8f02bf2540570aeb258b9c104fdb9388036a33addf20d7891

      SHA512

      baf4eeb01ecc2232461ca2bb2515652aaf582eb3f584ff3d7ee67813cd129e3e05c161b3434874b0ac74b6738653b67a140ad5bfbf825f21a98b9ef7255f9a5e

    • \??\PIPE\srvsvc

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

      Filesize

      548KB

      MD5

      41dc167b623d1e1d03a4eff1763774ad

      SHA1

      c3b4c41bd9069acaff2816ddc6a99988c9eefea8

      SHA256

      7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef

      SHA512

      4aa6f5d3991fd6e98f1df2317fcb9d4e66b43b820c023f83d721d57550ece27403f2612cf23804baeccd3a67f76ad46838c46fa2e3910d6c7f73f2b5de6d07f8

    • memory/2416-18-0x0000000073EB0000-0x000000007459E000-memory.dmp

      Filesize

      6.9MB

    • memory/2416-4-0x0000000000490000-0x0000000000498000-memory.dmp

      Filesize

      32KB

    • memory/2416-5-0x00000000004A0000-0x00000000004AC000-memory.dmp

      Filesize

      48KB

    • memory/2416-6-0x0000000002040000-0x0000000002098000-memory.dmp

      Filesize

      352KB

    • memory/2416-1-0x0000000000A20000-0x0000000000AAC000-memory.dmp

      Filesize

      560KB

    • memory/2416-2-0x0000000073EB0000-0x000000007459E000-memory.dmp

      Filesize

      6.9MB

    • memory/2416-3-0x00000000003B0000-0x00000000003C2000-memory.dmp

      Filesize

      72KB

    • memory/2416-0-0x0000000073EBE000-0x0000000073EBF000-memory.dmp

      Filesize

      4KB

    • memory/2988-10-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-13-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-15-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-17-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2988-19-0x0000000073EB0000-0x000000007459E000-memory.dmp

      Filesize

      6.9MB

    • memory/2988-9-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-8-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-7-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2988-43-0x0000000073EB0000-0x000000007459E000-memory.dmp

      Filesize

      6.9MB

    • memory/2988-44-0x0000000073EB0000-0x000000007459E000-memory.dmp

      Filesize

      6.9MB