Overview

overview

10

Static

static

3

7dec684e4f...31.exe

windows7-x64

10

7dec684e4f...31.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31

  • Size

    901KB

  • Sample

    230509-pmrseshg2s

  • MD5

    aa36a03ebaad8cfa9fdc16312951ebba

  • SHA1

    491f103af57cb5c365624231c6f4b4eefed43897

  • SHA256

    7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31

  • SHA512

    2652c66c236563e48016927f7aaaa3bc507516d50cb9833094cd64fa2617c283306139da33694516359033d3fac835376da9c37f4bf7e65102dc53e385241096

  • SSDEEP

    24576:us5A1RMX/MedFbsPfMg1MppWv5oQqGQIg:d+MX7bitM9z

Score
10/10
guloaderremcosremotehostdownloaderrat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

51.161.212.232:2406

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-8UPGPC

  • 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

Targets

    • Target

      7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31

    • Size

      901KB

    • MD5

      aa36a03ebaad8cfa9fdc16312951ebba

    • SHA1

      491f103af57cb5c365624231c6f4b4eefed43897

    • SHA256

      7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31

    • SHA512

      2652c66c236563e48016927f7aaaa3bc507516d50cb9833094cd64fa2617c283306139da33694516359033d3fac835376da9c37f4bf7e65102dc53e385241096

    • SSDEEP

      24576:us5A1RMX/MedFbsPfMg1MppWv5oQqGQIg:d+MX7bitM9z

    Score
    10/10
    guloaderremcosremotehostdownloaderrat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks