Overview

overview

10

Static

static

3

39df3cbc48...45.exe

windows7-x64

10

39df3cbc48...45.exe

windows10-2004-x64

7

Sharing

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General

  • Target

    39df3cbc48867b449d4828185b06f2e4d647562724da9205a46f5fd5763e6545.exe

  • Size

    137KB

  • Sample

    240704-ecp6qsvdmf

  • MD5

    986bc47d1b0a81e13f3563269f543790

  • SHA1

    7d651dc71a4fa25db318daa755e0af5ff1918435

  • SHA256

    39df3cbc48867b449d4828185b06f2e4d647562724da9205a46f5fd5763e6545

  • SHA512

    5eba05177aade9052ac34516027b74b4b2f5c31ae3314dec450d79e49eef0f19061825a1c54b43dda7d26c92530bcb5edcde2b5e6f2df8b2fde48850bc38359d

  • SSDEEP

    1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKj:xPd4n/M+WLcilrpgGH/GwY87mVmIXT

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

      39df3cbc48867b449d4828185b06f2e4d647562724da9205a46f5fd5763e6545.exe

    • Size

      137KB

    • MD5

      986bc47d1b0a81e13f3563269f543790

    • SHA1

      7d651dc71a4fa25db318daa755e0af5ff1918435

    • SHA256

      39df3cbc48867b449d4828185b06f2e4d647562724da9205a46f5fd5763e6545

    • SHA512

      5eba05177aade9052ac34516027b74b4b2f5c31ae3314dec450d79e49eef0f19061825a1c54b43dda7d26c92530bcb5edcde2b5e6f2df8b2fde48850bc38359d

    • SSDEEP

      1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKj:xPd4n/M+WLcilrpgGH/GwY87mVmIXT

    Score
    10/10
    remcoshostpersistencerat

    • Remcos

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

      ratremcos

    • 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