Analysis

  • max time kernel
    7s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 03:44

General

  • Target

    e1b343ba8a8e3d87436bf5f880a17f4bc43a1ac4acf2cbb90bf51207554cbb3d.exe

  • Size

    1.7MB

  • MD5

    44d2a54c0ed05d26da2f362d9f40828c

  • SHA1

    591c6d2bf71d06e479e10b54009a10f8ec7139e6

  • SHA256

    e1b343ba8a8e3d87436bf5f880a17f4bc43a1ac4acf2cbb90bf51207554cbb3d

  • SHA512

    22b5ad365ba03fa902e713405b1eb6a711f3b25f1fd1049a0fce796abf579a13ab6e03899a5ea715e330b5182d9430112f3cc233f308abdb857640eb40c6de8b

  • SSDEEP

    24576:ZD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j7J:Zp7E+QrFUBgq20

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1b343ba8a8e3d87436bf5f880a17f4bc43a1ac4acf2cbb90bf51207554cbb3d.exe
    "C:\Users\Admin\AppData\Local\Temp\e1b343ba8a8e3d87436bf5f880a17f4bc43a1ac4acf2cbb90bf51207554cbb3d.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2132
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
      2⤵
        PID:1204
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
          3⤵
            PID:2084
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4080,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=4208 /prefetch:8
        1⤵
          PID:3628

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
          Filesize

          1.8MB

          MD5

          824ba8f1ba19abf3970188dd524be0fa

          SHA1

          fcab3793b956fda581baffc86c2e44e8151405b6

          SHA256

          cd51554468ebaa2b07da9b463ff4dd8c9a3427c4a0c844dcc1add56516cac17e

          SHA512

          84c58063731fd6cdc0c7f66d841306d015c48586450fa91f3c0b3fd8e17776ff3bbc3abd6c3d6b0d3021735220e304fe9fc230b06926189174735f96543b2377

        • memory/1204-29-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/1204-44-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/1204-31-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/1204-32-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/1204-30-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/2084-43-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2084-37-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2084-42-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2084-40-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2084-36-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2084-33-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2084-47-0x0000000000400000-0x0000000000417000-memory.dmp
          Filesize

          92KB

        • memory/2132-28-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/2132-5-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/2132-6-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/2132-2-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB

        • memory/2132-0-0x0000000075402000-0x0000000075403000-memory.dmp
          Filesize

          4KB

        • memory/2132-1-0x0000000075400000-0x00000000759B1000-memory.dmp
          Filesize

          5.7MB