Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2024 01:14

General

  • Target

    95311fc0f7c080fc57155842d9f00c404813f27744c9142dfb785d0bcd410190.exe

  • Size

    1.1MB

  • MD5

    4ef725e78d41b96d40ad546b5d92efe9

  • SHA1

    b8ee90718310eeab41306d79df5f1cc8b02f7f5b

  • SHA256

    95311fc0f7c080fc57155842d9f00c404813f27744c9142dfb785d0bcd410190

  • SHA512

    20bccba9827758fdd077c0e2d6051a6537ac57ddb80265b16fe410c12639470d1c96ca6cec2cc2941793e628b7e5ae47320ace91e92ddb7a6550026840a1e20e

  • SSDEEP

    24576:b6G5oq6WlY5EQJbBCt598PkfzGwWPEXyqQ:bPQrJChIP1q

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.194.152.154:3678

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-MI0D28

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\95311fc0f7c080fc57155842d9f00c404813f27744c9142dfb785d0bcd410190.exe
    "C:\Users\Admin\AppData\Local\Temp\95311fc0f7c080fc57155842d9f00c404813f27744c9142dfb785d0bcd410190.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Windows\SysWOW64\extrac32.exe
      C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\95311fc0f7c080fc57155842d9f00c404813f27744c9142dfb785d0bcd410190.exe C:\\Users\\Public\\Libraries\\Blmpvfff.PIF
      2⤵
        PID:4948
      • C:\Windows\SysWOW64\colorcpl.exe
        C:\Windows\System32\colorcpl.exe
        2⤵
          PID:1968

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        146B

        MD5

        67e54a9164f3f33f37f6727a6244e816

        SHA1

        b7f3a7411bcd6346acfca1ea144b8ecae46886e4

        SHA256

        23a0ae3fd1a9e87bf13ab9778f86458dadfc3f00a0ea8fe05ea3c9a5399ce57d

        SHA512

        1a904dcf201899bfd3b22afa14eb4cf919b501671f84d8f0da2bc989468257f80a43a98be1446d6262c982c0d097e80461b93f499b96ea2cac443e4954a67288

      • memory/1968-9-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-13-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-6-0x0000000004620000-0x0000000005620000-memory.dmp

        Filesize

        16.0MB

      • memory/1968-12-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-10-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-7-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-15-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-16-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-18-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-19-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-21-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-22-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-24-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-25-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-27-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-28-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-29-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-31-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-32-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-34-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-35-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-36-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-38-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-39-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-41-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-42-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-44-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-45-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-47-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-48-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-50-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-51-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-52-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-54-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-55-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-56-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-58-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-59-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-61-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-62-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-64-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-65-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-67-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-68-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-71-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-72-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-74-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-75-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-77-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-78-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-80-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-81-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-83-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-84-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-87-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-88-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-90-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-91-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-93-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-94-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/1968-95-0x000000001C320000-0x000000001C3A2000-memory.dmp

        Filesize

        520KB

      • memory/3444-0-0x0000000000730000-0x0000000000731000-memory.dmp

        Filesize

        4KB

      • memory/3444-5-0x0000000000400000-0x000000000051D000-memory.dmp

        Filesize

        1.1MB