Overview

overview

10

Static

static

3

dc74b2bdfc...fc.exe

windows7-x64

10

dc74b2bdfc...fc.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    dc74b2bdfcbe088506b7c896d7076e743f0c16195d279642a123f8368db1acfc

  • Size

    136KB

  • Sample

    240615-dejw3axble

  • MD5

    b7eec3976d9fd82d9cd59406b0cab50b

  • SHA1

    a90d0f2e49b24c8d3b25c56b9eb54d49bdb4569d

  • SHA256

    dc74b2bdfcbe088506b7c896d7076e743f0c16195d279642a123f8368db1acfc

  • SHA512

    bc9ea2d5b15b3b8b2727f7e894c34c4f6b62d07957a3bb92d54a692f337522aa89d7891e7af2a48aa6a83ac920e3ae1c80210826c8cc3cbb33eff60a88677b65

  • SSDEEP

    1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKn:xPd4n/M+WLcilrpgGH/GwY87mVmIXGs

Score
10/10
remcoshostpersistencerat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

systemcontrol.ddns.net:45000

systemcontrol2.ddns.net:45000
Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    OfficeUpgrade.exe

  • copy_folder

    OfficeUpgrade

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    Upgrader.dat

  • keylog_flag

    false

  • keylog_folder

    Upgrader

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    req_khauflaoyr

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    OfficeUpgrade

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      dc74b2bdfcbe088506b7c896d7076e743f0c16195d279642a123f8368db1acfc

    • Size

      136KB

    • MD5

      b7eec3976d9fd82d9cd59406b0cab50b

    • SHA1

      a90d0f2e49b24c8d3b25c56b9eb54d49bdb4569d

    • SHA256

      dc74b2bdfcbe088506b7c896d7076e743f0c16195d279642a123f8368db1acfc

    • SHA512

      bc9ea2d5b15b3b8b2727f7e894c34c4f6b62d07957a3bb92d54a692f337522aa89d7891e7af2a48aa6a83ac920e3ae1c80210826c8cc3cbb33eff60a88677b65

    • SSDEEP

      1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKn:xPd4n/M+WLcilrpgGH/GwY87mVmIXGs

    Score
    10/10
    remcoshostpersistencerat

    • Remcos

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

      ratremcos

    • detects Windows exceutables potentially bypassing UAC using eventvwr.exe

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks