Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2024, 02:49

General

  • Target
    6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978.exe
  • Size 1006KB
  • Sample240705-da4exatand
  • SHA256 6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 204.10.160.230:7983

Attributes
  • audio_folder

    MicRecords

  • 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-O7QOC3

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978.exe
    "C:\Users\Admin\AppData\Local\Temp\6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PQHcRKfCm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1864
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PQHcRKfCm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC1A.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2360
    • C:\Users\Admin\AppData\Local\Temp\6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978.exe
      "C:\Users\Admin\AppData\Local\Temp\6eecadfd2838192c745cf88fa82ed4e96d9f27b15f1372ab24a5e94fdba22978.exe"
      2⤵
        PID:4352

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 18KB
          • SHA256 08ef41df3978e5289ea7edf1e90bd737b317bb9b50eae6a414500a8162ec3985
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_lddswd3s.sdy.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lddswd3s.sdy.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmpCC1A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmpCC1A.tmp
          • Size 1KB
          • SHA256 5319f5b14ae559e18116d97b78fb0a1e51aa3daaf804f31c79979858c0d30104
          • MD5 SHA1 SHA512

          memory/1864-52-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/1864-24-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/1864-83-0x0000000007D60000-0x00000000083DA000-memory.dmp

          memory/1864-62-0x0000000075210000-0x000000007525C000-memory.dmp

          memory/1864-88-0x0000000007950000-0x000000000795E000-memory.dmp

          memory/1864-84-0x0000000007720000-0x000000000773A000-memory.dmp

          memory/1864-33-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/1864-96-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4352-32-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-41-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-103-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-101-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-102-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-99-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-57-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-104-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-56-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-97-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-55-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-100-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-34-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4352-40-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/4700-1-0x0000000000D30000-0x0000000000E2E000-memory.dmp

          memory/4700-51-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4700-8-0x0000000002F50000-0x0000000002F5C000-memory.dmp

          memory/4700-9-0x0000000008590000-0x000000000864E000-memory.dmp

          memory/4700-2-0x0000000005C80000-0x0000000006224000-memory.dmp

          memory/4700-0-0x000000007498E000-0x000000007498F000-memory.dmp

          memory/4700-16-0x000000007498E000-0x000000007498F000-memory.dmp

          memory/4700-7-0x00000000059D0000-0x00000000059D8000-memory.dmp

          memory/4700-10-0x00000000086F0000-0x000000000878C000-memory.dmp

          memory/4700-4-0x0000000005770000-0x000000000577A000-memory.dmp

          memory/4700-3-0x00000000056D0000-0x0000000005762000-memory.dmp

          memory/4700-6-0x00000000059B0000-0x00000000059CA000-memory.dmp

          memory/4700-5-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4936-22-0x0000000005830000-0x0000000005852000-memory.dmp

          memory/4936-77-0x0000000006D80000-0x0000000006D9E000-memory.dmp

          memory/4936-82-0x00000000077D0000-0x0000000007873000-memory.dmp

          memory/4936-60-0x0000000006DA0000-0x0000000006DD2000-memory.dmp

          memory/4936-61-0x0000000075210000-0x000000007525C000-memory.dmp

          memory/4936-85-0x0000000007B80000-0x0000000007B8A000-memory.dmp

          memory/4936-86-0x0000000007D90000-0x0000000007E26000-memory.dmp

          memory/4936-87-0x0000000007D10000-0x0000000007D21000-memory.dmp

          memory/4936-54-0x0000000006820000-0x000000000686C000-memory.dmp

          memory/4936-89-0x0000000007D50000-0x0000000007D64000-memory.dmp

          memory/4936-90-0x0000000007E50000-0x0000000007E6A000-memory.dmp

          memory/4936-91-0x0000000007E30000-0x0000000007E38000-memory.dmp

          memory/4936-53-0x00000000067F0000-0x000000000680E000-memory.dmp

          memory/4936-26-0x00000000061A0000-0x00000000064F4000-memory.dmp

          memory/4936-95-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4936-23-0x00000000058D0000-0x0000000005936000-memory.dmp

          memory/4936-25-0x0000000005940000-0x00000000059A6000-memory.dmp

          memory/4936-20-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4936-18-0x00000000059F0000-0x0000000006018000-memory.dmp

          memory/4936-19-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4936-17-0x0000000074980000-0x0000000075130000-memory.dmp

          memory/4936-15-0x0000000002F40000-0x0000000002F76000-memory.dmp