Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/03/2024, 02:59

General

  • Target

    e1cb41543e7c1f4fb4809f85e8c2e95b8e8cfdfe1c10cabdfdf66d0f6833d24b.exe

  • Size

    80KB

  • MD5

    f7c281ad8f95308eda627147f019d7be

  • SHA1

    bb95cc4d23e676f2bab42dfdae9c6c99d7387790

  • SHA256

    e1cb41543e7c1f4fb4809f85e8c2e95b8e8cfdfe1c10cabdfdf66d0f6833d24b

  • SHA512

    d4eb6aa6b43b7059c7161987c788a94771feb45c26298562998f99dc045b7008e7b29f0aad87a9793996da41310eeca7fb6bb4825dc8a88f234e728ccf6df88a

  • SSDEEP

    768:afHUka4Sj0D+Fc0Q3m3CJV1jpugzPbPhcO35Rls9uQjr:ws4Sj0D+Fc0Q3m30Vxpug3d57s9Pjr

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

ME

C2

66.63.162.155:1608

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    V.systems.exe

  • copy_folder

    V.systems

  • 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-N3SAL0

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 23 IoCs
  • Detects executables built or packed with MPress PE compressor 18 IoCs
  • Detects executables packed with or use KoiVM 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1cb41543e7c1f4fb4809f85e8c2e95b8e8cfdfe1c10cabdfdf66d0f6833d24b.exe
    "C:\Users\Admin\AppData\Local\Temp\e1cb41543e7c1f4fb4809f85e8c2e95b8e8cfdfe1c10cabdfdf66d0f6833d24b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Windows\System32\calc.exe
      "C:\Windows\System32\calc.exe"
      2⤵
        PID:4528
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4056
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe /stext "C:\Users\Admin\AppData\Local\Temp\tnybdnxpjwcadoywqzuh"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1372
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe /stext "C:\Users\Admin\AppData\Local\Temp\epdueghqfeufnumazkhikeg"
          3⤵
            PID:3180
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe /stext "C:\Users\Admin\AppData\Local\Temp\epdueghqfeufnumazkhikeg"
            3⤵
            • Accesses Microsoft Outlook accounts
            PID:1848
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe /stext "C:\Users\Admin\AppData\Local\Temp\ojjmfysktnmkpiiequbcnjtiad"
            3⤵
              PID:3780
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe /stext "C:\Users\Admin\AppData\Local\Temp\ojjmfysktnmkpiiequbcnjtiad"
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1736
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
            2⤵
              PID:3756

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\tnybdnxpjwcadoywqzuh

                  Filesize

                  4KB

                  MD5

                  1e851ac5c5f7c5086508dddc69063a46

                  SHA1

                  ec67b2be1b676dc07b54f92b64cabaa8b5c53656

                  SHA256

                  0672c1350202839c50058ce7097f6eac6d3788bac87b932f64a6c5f75674eb04

                  SHA512

                  e532fb9a86e913de9272d2314bbbf8688e60932e5cb67b8d780a5904545df5ee3a2669b1875c687fe2aa7281198e00b74f6de0d8e3fd9bfac10b0b28b18f5019

                • memory/1372-29-0x0000000000400000-0x0000000000478000-memory.dmp

                  Filesize

                  480KB

                • memory/1372-42-0x0000000000400000-0x0000000000478000-memory.dmp

                  Filesize

                  480KB

                • memory/1372-27-0x0000000000400000-0x0000000000478000-memory.dmp

                  Filesize

                  480KB

                • memory/1372-22-0x0000000000400000-0x0000000000478000-memory.dmp

                  Filesize

                  480KB

                • memory/1736-40-0x0000000000400000-0x0000000000424000-memory.dmp

                  Filesize

                  144KB

                • memory/1736-38-0x0000000000400000-0x0000000000424000-memory.dmp

                  Filesize

                  144KB

                • memory/1736-37-0x0000000000400000-0x0000000000424000-memory.dmp

                  Filesize

                  144KB

                • memory/1736-32-0x0000000000400000-0x0000000000424000-memory.dmp

                  Filesize

                  144KB

                • memory/1736-26-0x0000000000400000-0x0000000000424000-memory.dmp

                  Filesize

                  144KB

                • memory/1848-39-0x0000000000400000-0x0000000000462000-memory.dmp

                  Filesize

                  392KB

                • memory/1848-33-0x0000000000400000-0x0000000000462000-memory.dmp

                  Filesize

                  392KB

                • memory/1848-30-0x0000000000400000-0x0000000000462000-memory.dmp

                  Filesize

                  392KB

                • memory/1848-24-0x0000000000400000-0x0000000000462000-memory.dmp

                  Filesize

                  392KB

                • memory/2684-13-0x00007FFBCC4E0000-0x00007FFBCCFA1000-memory.dmp

                  Filesize

                  10.8MB

                • memory/2684-4-0x000002CB73E10000-0x000002CB73EE2000-memory.dmp

                  Filesize

                  840KB

                • memory/2684-1-0x00007FFBCC4E0000-0x00007FFBCCFA1000-memory.dmp

                  Filesize

                  10.8MB

                • memory/2684-2-0x000002CB72CF0000-0x000002CB72D00000-memory.dmp

                  Filesize

                  64KB

                • memory/2684-3-0x00007FFBCC4E0000-0x00007FFBCCFA1000-memory.dmp

                  Filesize

                  10.8MB

                • memory/2684-5-0x000002CB72CF0000-0x000002CB72D00000-memory.dmp

                  Filesize

                  64KB

                • memory/2684-9-0x000002CB72CF0000-0x000002CB72D00000-memory.dmp

                  Filesize

                  64KB

                • memory/2684-0-0x000002CB71040000-0x000002CB71058000-memory.dmp

                  Filesize

                  96KB

                • memory/4056-48-0x0000000010000000-0x0000000010019000-memory.dmp

                  Filesize

                  100KB

                • memory/4056-56-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-12-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-10-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-14-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-8-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-7-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-6-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-20-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-15-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-18-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-17-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-21-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-16-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-11-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-47-0x0000000010000000-0x0000000010019000-memory.dmp

                  Filesize

                  100KB

                • memory/4056-49-0x0000000010000000-0x0000000010019000-memory.dmp

                  Filesize

                  100KB

                • memory/4056-51-0x0000000010000000-0x0000000010019000-memory.dmp

                  Filesize

                  100KB

                • memory/4056-50-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-52-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-53-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-54-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-55-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-44-0x0000000010000000-0x0000000010019000-memory.dmp

                  Filesize

                  100KB

                • memory/4056-57-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-58-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-59-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB

                • memory/4056-60-0x0000000000400000-0x0000000000482000-memory.dmp

                  Filesize

                  520KB