Overview

overview

10

Static

static

3

097f505b81...80.exe

windows7-x64

10

097f505b81...80.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    097f505b81e24c11b775c857e41c6bfde514588114a89354b24c74e478cacc80

  • Size

    136KB

  • Sample

    240528-w112ksgb57

  • MD5

    0bdd320eb5daca168625278548095c47

  • SHA1

    945e19805a764b5a40e682173c26bce74ec8ed9f

  • SHA256

    097f505b81e24c11b775c857e41c6bfde514588114a89354b24c74e478cacc80

  • SHA512

    4d47856fcd95c3b50be8f7c0efd568f3f7af3d68e2b713f8bb88efd6c008b45781bccb92be80dd54debc2a241fabde1a8296075797676405989317c81e3b0117

  • SSDEEP

    1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjK2:xPd4n/M+WLcilrpgGH/GwY87mVmIXG

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

      097f505b81e24c11b775c857e41c6bfde514588114a89354b24c74e478cacc80

    • Size

      136KB

    • MD5

      0bdd320eb5daca168625278548095c47

    • SHA1

      945e19805a764b5a40e682173c26bce74ec8ed9f

    • SHA256

      097f505b81e24c11b775c857e41c6bfde514588114a89354b24c74e478cacc80

    • SHA512

      4d47856fcd95c3b50be8f7c0efd568f3f7af3d68e2b713f8bb88efd6c008b45781bccb92be80dd54debc2a241fabde1a8296075797676405989317c81e3b0117

    • SSDEEP

      1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjK2:xPd4n/M+WLcilrpgGH/GwY87mVmIXG

    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