Analysis

  • max time kernel
    152s
  • max time network
    195s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-09-2021 06:51

General

  • Target

    265e318e8b0b5a8ccc590c20a5e9ab9b.exe

  • Size

    917KB

  • MD5

    265e318e8b0b5a8ccc590c20a5e9ab9b

  • SHA1

    4617044cfb01f8826ba6813b245b71c9d7753987

  • SHA256

    bb269eaeeea17647477215cd7f690f204664bcdf39c14a38ac2f393eafb4b1a6

  • SHA512

    aaf9353354f8cd1471cb7aa752c4e5f353e14c6c820dd6dcac3fb7a554d94b091b322a3f8ac14a47a42c88cd32e8278eca602036e783354430d2918b772f7d01

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

RemoteHost

C2

freelife.hopto.org:2404

freelife1.hopto.org:2404

freelife2.hopto.org:2404

freelife01.hopto.org:2404

freelife3.hopto.org:2404

freelife4.hopto.org:2404

freelife5.hopto.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    pastananiceforwhat-QQD2AI

  • 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

  • take_screenshot_title

    notepad;solitaire;

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\265e318e8b0b5a8ccc590c20a5e9ab9b.exe
    "C:\Users\Admin\AppData\Local\Temp\265e318e8b0b5a8ccc590c20a5e9ab9b.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Windows\SysWOW64\logagent.exe
      C:\Windows\System32\logagent.exe
      2⤵
        PID:552

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/552-66-0x0000000000000000-mapping.dmp
    • memory/552-69-0x0000000000220000-0x0000000000221000-memory.dmp
      Filesize

      4KB

    • memory/552-68-0x00000000000C0000-0x00000000000C1000-memory.dmp
      Filesize

      4KB

    • memory/552-71-0x0000000000340000-0x00000000003B9000-memory.dmp
      Filesize

      484KB

    • memory/552-70-0x0000000010590000-0x000000001060C000-memory.dmp
      Filesize

      496KB

    • memory/552-72-0x0000000000080000-0x0000000000081000-memory.dmp
      Filesize

      4KB

    • memory/1016-64-0x0000000000240000-0x0000000000241000-memory.dmp
      Filesize

      4KB

    • memory/1016-65-0x0000000075211000-0x0000000075213000-memory.dmp
      Filesize

      8KB