Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-06-2023 07:54

General

  • Target

    dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e.exe

  • Size

    571KB

  • MD5

    58a91896eaf6efe03ffe6ebb7b731792

  • SHA1

    e3ec7807b22e91e887dd1bc752c426041607216f

  • SHA256

    dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e

  • SHA512

    9c764a0ec4d5f628fe998d90836fe39b2e112ebb21dc97e323c5ef0e50d6790ed36b5d89609c4aa4be2a5aaf6f4859e6e5a70150ce8b446868189417d9dffc23

  • SSDEEP

    12288:OBm+u0O5pDETlQ6ocFa59nBTDvdeLu3jaLWGaGAXd:uzAgQ6Y59hDvdeLuTwK

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:55433

185.65.134.166:55433

10.11.0.5:55433

45.128.234.54:55433

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-UQ90W9

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e.exe
    "C:\Users\Admin\AppData\Local\Temp\dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
        PID:1204
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
        2⤵
        • Suspicious behavior: GetForegroundWindowSpam
        PID:4840

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2744-133-0x000002F6BBE10000-0x000002F6BBEA4000-memory.dmp
      Filesize

      592KB

    • memory/4840-134-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-136-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-137-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-138-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-139-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-140-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-141-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-142-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-143-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-144-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-146-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-148-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-149-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-150-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-152-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-154-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-156-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-157-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB

    • memory/4840-158-0x0000000000400000-0x0000000000480000-memory.dmp
      Filesize

      512KB