Overview

overview

10

Static

static

1

DETAILS.docx

windows7-x64

10

DETAILS.docx

windows10-2004-x64

1

Sharing

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General

  • Target

    DETAILS.docx

  • Size

    558KB

  • Sample

    240417-rxte4scc22

  • MD5

    bb683a0e1b197cab5dce152e9355983f

  • SHA1

    48dab24779ecf13e3c130107e950514e46046c11

  • SHA256

    0eab45741c6d3abdb145b7c928d045dc77cf3def915d017abc388c2c38da8137

  • SHA512

    2ab668822fe5742dc4d69e6f0ffebbc2edf01832d997a414b36db0fad71b1c63dac633358a6ef1b6211df8e367a7e87e533ab20d8b6c29ed82d02ab6449fc7f3

  • SSDEEP

    12288:1IAODfjgJ4h1dPjcXUk+MifcXUk+MiQWHOOkxogMm+JJgiXSV3VNycXUk+Mid:KvY4h7P4XUQXUUWHOOkdMm+JJgioVNPa

Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

sembe.duckdns.org:14645

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

    true

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    notess

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-P0AEMX

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      DETAILS.docx

    • Size

      558KB

    • MD5

      bb683a0e1b197cab5dce152e9355983f

    • SHA1

      48dab24779ecf13e3c130107e950514e46046c11

    • SHA256

      0eab45741c6d3abdb145b7c928d045dc77cf3def915d017abc388c2c38da8137

    • SHA512

      2ab668822fe5742dc4d69e6f0ffebbc2edf01832d997a414b36db0fad71b1c63dac633358a6ef1b6211df8e367a7e87e533ab20d8b6c29ed82d02ab6449fc7f3

    • SSDEEP

      12288:1IAODfjgJ4h1dPjcXUk+MifcXUk+MiQWHOOkxogMm+JJgiXSV3VNycXUk+Mid:KvY4h7P4XUQXUUWHOOkdMm+JJgioVNPa

    Score
    10/10
    remcosremotehostpersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Abuses OpenXML format to download file from external location

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Exploitation for Client Execution

1
T1203

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

2
T1112

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks