Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01/08/2025, 01:25

General

  • Target
    7b232254d4b4be67111e92f5c2e34bc331403393c2d01.exe
  • Size 825KB
  • Sample250801-bs821a1zat
  • SHA256 7b232254d4b4be67111e92f5c2e34bc331403393c2d019b31e256ca7d798cd08
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • hexa.dnsframe.com:66

Mutex
  • FzSIsfqlHwWWhS56

Attributes
  • Install_directory

    %AppData%

  • install_file

    inj.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Drops startup file 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Drops file in Windows directory 2 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 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3296
      • C:\Users\Admin\AppData\Local\Temp\7b232254d4b4be67111e92f5c2e34bc331403393c2d01.exe
        "C:\Users\Admin\AppData\Local\Temp\7b232254d4b4be67111e92f5c2e34bc331403393c2d01.exe"
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1916
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c cmd < Conditions.jpg
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5840
          • C:\Windows\SysWOW64\cmd.exe
            cmd
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4460
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              5⤵
              • Enumerates processes with tasklist
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:6000
            • C:\Windows\SysWOW64\findstr.exe
              findstr "SophosHealth nsWscSvc ekrn bdservicehost AvastUI AVGUI & if not errorlevel 1 Set xHvwkMjyoqyYzDYqTcDIezINglQITjPbj=AutoIt3.exe & Set nESMQIqKqyOT=.a3x & Set MWpZLDzF=300
              5⤵
              • System Location Discovery: System Language Discovery
              PID:3724
            • C:\Windows\SysWOW64\extrac32.exe
              extrac32 /Y Tackle.jpg *.*
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1552
            • C:\Windows\SysWOW64\findstr.exe
              findstr /V "upskirt" Alarm
              5⤵
              • System Location Discovery: System Language Discovery
              PID:4952
            • C:\Users\Admin\AppData\Local\Temp\416815\Nation.pif
              Nation.pif b
              5⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of WriteProcessMemory
              PID:5116
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                6⤵
                • Drops startup file
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:2160
            • C:\Windows\SysWOW64\waitfor.exe
              waitfor /T 5 MWpZLDzF
              5⤵
              • System Location Discovery: System Language Discovery
              PID:5024
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c schtasks.exe /create /tn "Started" /tr "wscript //B 'C:\Users\Admin\AppData\Local\ColorSync Dynamics\SpectraFox.js'" /sc minute /mo 5 /F
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2396
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /create /tn "Started" /tr "wscript //B 'C:\Users\Admin\AppData\Local\ColorSync Dynamics\SpectraFox.js'" /sc minute /mo 5 /F
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4616
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k echo [InternetShortcut] > "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SpectraFox.url" & echo URL="C:\Users\Admin\AppData\Local\ColorSync Dynamics\SpectraFox.js" >> "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SpectraFox.url" & exit
        2⤵
        • Drops startup file
        • System Location Discovery: System Language Discovery
        PID:5264

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          Nation.pif

          • Path C:\Users\Admin\AppData\Local\Temp\416815\Nation.pif
          • Size 957KB
          • SHA256 3ec9740bedc683021cc3e94e4a33b3a9d3d6f9b9e96b1f04cc6534f551dd58c1
          • MD5 SHA1 SHA512 SSDEEP

          b

          • Path C:\Users\Admin\AppData\Local\Temp\416815\b
          • Size 252KB
          • SHA256 32844c1e9b0d7c851182bea761baf41cb60bdeabf4721ac35d546dec75f49662
          • MD5 SHA1 SHA512 SSDEEP

          Alarm

          • Path C:\Users\Admin\AppData\Local\Temp\Alarm
          • Size 322B
          • SHA256 3120ed3699b4106cf6aac5b8fc97c39c95e08c5dede1458bad7e93e84b20f5e8
          • MD5 SHA1 SHA512

          Briefly

          • Path C:\Users\Admin\AppData\Local\Temp\Briefly
          • Size 120KB
          • SHA256 da91cca3415c33e34a272f6d647fd8e8095e6ed9828806777b53cd570e599a67
          • MD5 SHA1 SHA512 SSDEEP

          Cent

          • Path C:\Users\Admin\AppData\Local\Temp\Cent
          • Size 142KB
          • SHA256 1b5accb8487addc0f92f039fda87fd80b87adecc3648985040a7ed67dbb677d4
          • MD5 SHA1 SHA512 SSDEEP

          Circus.jpg

          • Path C:\Users\Admin\AppData\Local\Temp\Circus.jpg
          • Size 175KB
          • SHA256 fd1f4fa3ae296ea469e615398dcf892e09a6b84012a2b70502f873dbdcc8da23
          • MD5 SHA1 SHA512 SSDEEP

          Conditions.jpg

          • Path C:\Users\Admin\AppData\Local\Temp\Conditions.jpg
          • Size 20KB
          • SHA256 c5df26fd3409ce100bfd79910d231d2064652e18f8987445aa539031175ec7f4
          • MD5 SHA1 SHA512 SSDEEP

          Magnetic

          • Path C:\Users\Admin\AppData\Local\Temp\Magnetic
          • Size 55KB
          • SHA256 8a5791b0aad6f266ba3c7f88721017c49e6a2757d35986300f485acccc99f1df
          • MD5 SHA1 SHA512 SSDEEP

          Postage

          • Path C:\Users\Admin\AppData\Local\Temp\Postage
          • Size 139KB
          • SHA256 0cf09e4cdd05a19a5fe82c051d78ca901f4d0c0d3ccd6222966ddb4cc7c2841c
          • MD5 SHA1 SHA512 SSDEEP

          Publicly

          • Path C:\Users\Admin\AppData\Local\Temp\Publicly
          • Size 120KB
          • SHA256 4177b4e03fdf9dc7fcbeac232311e19552a3e96bed6aa7484ed418c0db7d22c9
          • MD5 SHA1 SHA512 SSDEEP

          Shark

          • Path C:\Users\Admin\AppData\Local\Temp\Shark
          • Size 85KB
          • SHA256 68de54543c1310ccfcec132b8385c6c250f5c1516aee0fb9ab3b01af0af73426
          • MD5 SHA1 SHA512 SSDEEP

          Sheets

          • Path C:\Users\Admin\AppData\Local\Temp\Sheets
          • Size 122KB
          • SHA256 4b03af51aa01191e2a5242f1e3ae3ed562305d27e92feb39537b5d43974758b2
          • MD5 SHA1 SHA512 SSDEEP

          Specifics.jpg

          • Path C:\Users\Admin\AppData\Local\Temp\Specifics.jpg
          • Size 77KB
          • SHA256 36b8b46a7562cc1afc5a93d483c4eed990cf141d5108fdccabc8507b05a17b95
          • MD5 SHA1 SHA512 SSDEEP

          Tackle.jpg

          • Path C:\Users\Admin\AppData\Local\Temp\Tackle.jpg
          • Size 494KB
          • SHA256 2408ca787d06e6c8d54b2f075ed7dffaa1318110e9866e608362069a9bea40d3
          • MD5 SHA1 SHA512 SSDEEP

          Temporarily

          • Path C:\Users\Admin\AppData\Local\Temp\Temporarily
          • Size 130KB
          • SHA256 9453b49cdf51ac78c66e29a4ee48df73a24c24f48215337abafd2081abd0218b
          • MD5 SHA1 SHA512 SSDEEP

          Tied

          • Path C:\Users\Admin\AppData\Local\Temp\Tied
          • Size 43KB
          • SHA256 9a153b6cefe52b221c6ff8e950e43a4ec61c259f9f8866e23e7ac981ab58293d
          • MD5 SHA1 SHA512 SSDEEP

          nsExec.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsp8953.tmp\nsExec.dll
          • Size 6KB
          • SHA256 8165c7aef7de3d3e0549776535bedc380ad9be7bb85e60ad6436f71528d092af
          • MD5 SHA1 SHA512 SSDEEP

          memory/2160-70-0x0000000000F00000-0x0000000000F0E000-memory.dmp

          memory/2160-71-0x00000000055B0000-0x000000000564C000-memory.dmp

          memory/2160-76-0x0000000005E70000-0x0000000005ED6000-memory.dmp

          memory/2160-77-0x0000000006A80000-0x0000000006B12000-memory.dmp

          memory/2160-78-0x00000000070D0000-0x0000000007676000-memory.dmp