Overview

overview

10

Static

static

5

82c1ad0b8c...9b.exe

windows7-x64

10

82c1ad0b8c...9b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    82c1ad0b8ca1b14d99a07ca66c3fcc87b1fa946b40a4e2e136c9e46d4f115a9b

  • Size

    1.1MB

  • Sample

    250208-c2vreazpht

  • MD5

    863999e77bcd5af2bdec52c922977a01

  • SHA1

    f8b588cd5bf9b367b7d9c1a07b1ab70971d5ab04

  • SHA256

    82c1ad0b8ca1b14d99a07ca66c3fcc87b1fa946b40a4e2e136c9e46d4f115a9b

  • SHA512

    f99e689ecde9772cb01930c637fcfd7443861edd31f6fe7030c118273a64443795918488334dd46e87eb1d37938ff3b9f165d57720166a7d59597a7dbe05c4bc

  • SSDEEP

    24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYM:Xu0c++OCvkGs9Fak4BYM

Score
10/10
remcosremotehostdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

2.2.0 Pro

Botnet

RemoteHost

C2

185.217.1.142:3337

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • 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-VBI2IL

  • 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

      82c1ad0b8ca1b14d99a07ca66c3fcc87b1fa946b40a4e2e136c9e46d4f115a9b

    • Size

      1.1MB

    • MD5

      863999e77bcd5af2bdec52c922977a01

    • SHA1

      f8b588cd5bf9b367b7d9c1a07b1ab70971d5ab04

    • SHA256

      82c1ad0b8ca1b14d99a07ca66c3fcc87b1fa946b40a4e2e136c9e46d4f115a9b

    • SHA512

      f99e689ecde9772cb01930c637fcfd7443861edd31f6fe7030c118273a64443795918488334dd46e87eb1d37938ff3b9f165d57720166a7d59597a7dbe05c4bc

    • SSDEEP

      24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYM:Xu0c++OCvkGs9Fak4BYM

    Score
    10/10
    remcosremotehostdiscoverypersistencerat

    • Modifies WinLogon for persistence

      persistence

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Modifies WinLogon

      persistence

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

2
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

2
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

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