Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2024 05:32

General

  • Target

    e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe

  • Size

    2.9MB

  • MD5

    c91f1586bb4bc9ea0953cdd3a7545227

  • SHA1

    9fc644188b50deb00f77c0e9e0d78482e2a0619d

  • SHA256

    e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd

  • SHA512

    044982c08afdc7c74fa59e1710f6e2697abe4985a4a8c8e6ec1dc5eb108d7758f04be26c158fb118f6f0866005fb4eb54b5f7b3d4844c351bc31d9f82f05e66e

  • SSDEEP

    49152:1HDpYiPDPHKf7Z0ek8jbq2Qg0Bk3JDSr0A8F1EdJv9XTZD9En/tdklpv:1HtRPzHKf90ek8jbvx0Bk3JDK21E5XtT

Malware Config

Extracted

Family

remcos

Botnet

RH1

C2

185.29.9.125:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    itunes.exe

  • copy_folder

    RMS

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Jd1985-XODZWD

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Rms

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Signatures

  • Remcos

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

  • Remcos family
  • UAC bypass 3 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Themida packer 53 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe
    "C:\Users\Admin\AppData\Local\Temp\e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Windows\SysWOW64\cmd.exe
      /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2940
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2816
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2304
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\RMS\itunes.exe"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2828
        • C:\Users\Admin\AppData\Roaming\RMS\itunes.exe
          C:\Users\Admin\AppData\Roaming\RMS\itunes.exe
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2960
          • C:\Windows\SysWOW64\cmd.exe
            /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2752
            • C:\Windows\SysWOW64\reg.exe
              C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
              6⤵
              • UAC bypass
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:528
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\SysWOW64\svchost.exe
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • System Location Discovery: System Language Discovery
            PID:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\install.vbs

    Filesize

    652B

    MD5

    f00f994f768bb66309720a3a29502665

    SHA1

    e2883d3789c3dd54b7f04a904cf88278526f17fe

    SHA256

    f9792028ecadf12107a257f2a97e44e0f59fdb6257e1a50a4d36e5e17a4d0ff5

    SHA512

    369eef69ef0f7b558925a2863cb9865cbd1d8fcade82232f57fa54e0d56662f0386d80720d6deedee8648c294d07a998630a628dcdd88acedb9bc42371bd1c96

  • \Users\Admin\AppData\Roaming\RMS\itunes.exe

    Filesize

    2.9MB

    MD5

    c91f1586bb4bc9ea0953cdd3a7545227

    SHA1

    9fc644188b50deb00f77c0e9e0d78482e2a0619d

    SHA256

    e6b0f81a947b7de134379b5be6827e5277fbdaedc9067654062ed94b0dd2aefd

    SHA512

    044982c08afdc7c74fa59e1710f6e2697abe4985a4a8c8e6ec1dc5eb108d7758f04be26c158fb118f6f0866005fb4eb54b5f7b3d4844c351bc31d9f82f05e66e

  • memory/2384-0-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-1-0x00000000774A0000-0x00000000774A2000-memory.dmp

    Filesize

    8KB

  • memory/2384-4-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-2-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-3-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-5-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-7-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-6-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2384-13-0x0000000000EF0000-0x0000000001626000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-59-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-50-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-56-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-57-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-58-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-60-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-61-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-26-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-48-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-46-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-44-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-42-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-40-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-38-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-36-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-34-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-32-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-30-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-28-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-55-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-54-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-53-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2780-62-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-65-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-66-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-64-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2780-63-0x0000000000400000-0x0000000000B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2828-19-0x0000000002400000-0x0000000002B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2828-18-0x0000000002400000-0x0000000002B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2828-67-0x0000000002400000-0x0000000002B36000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-70-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-72-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-23-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-22-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-25-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-68-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-69-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-24-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-71-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-21-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-73-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-74-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-75-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-76-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-77-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-78-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB

  • memory/2960-79-0x0000000000050000-0x0000000000786000-memory.dmp

    Filesize

    7.2MB