Overview

overview

10

Static

static

10

tmpm333bdbs.exe

windows10-ltsc_2021-x64

10

tmpm333bdbs.exe

windows10-2004-x64

10

tmpm333bdbs.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    tmpm333bdbs
  • Size 1.4MB
  • Sample260601-13ptjsf19v
  • SHA256 7677843a76323663063dc850d3b37baddb549afb037b06b8c0c2f26aa76e89bc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcoshostdefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

  • remcos

Version

  • 1.7 Pro

Botnet

  • Host

C2

  • lalalalalaalal.fr.to:2404

  • tdegreenffields.duckdns.org:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    sock.exe

  • copy_folder

    socks

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_numnuqorsziptly

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      tmpm333bdbs
    • Size 1.4MB
    • SHA256 7677843a76323663063dc850d3b37baddb549afb037b06b8c0c2f26aa76e89bc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    hostdefense_evasiondiscoveryremcospersistencerattrojan

    • Family: Remcos

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

      ratremcos

    • UAC bypass

      defense_evasiontrojan

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks