Overview

overview

10

Static

static

3

212a56150b...9c.exe

windows7-x64

10

212a56150b...9c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    212a56150b50e4bb9b18a8b6c10e2f0b0c18f6d74cb6d41065f8fee0fe2bd39c

  • Size

    137KB

  • Sample

    240626-xsq23s1epr

  • MD5

    7d421d9e6ce2288ccd3bf812e84e1958

  • SHA1

    b68144ec39afef3248c53315379759b681918567

  • SHA256

    212a56150b50e4bb9b18a8b6c10e2f0b0c18f6d74cb6d41065f8fee0fe2bd39c

  • SHA512

    27df2876b389d0af3a8d2b35d23cf3ed648330c8fe181e25fd287cc84cf1295c821f3dd0ea494cb900606d18b45829cb086b7e07a3e977bbfdcd7ae815355cd0

  • SSDEEP

    1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKg:xPd4n/M+WLcilrpgGH/GwY87mVmIXGD3

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

      212a56150b50e4bb9b18a8b6c10e2f0b0c18f6d74cb6d41065f8fee0fe2bd39c

    • Size

      137KB

    • MD5

      7d421d9e6ce2288ccd3bf812e84e1958

    • SHA1

      b68144ec39afef3248c53315379759b681918567

    • SHA256

      212a56150b50e4bb9b18a8b6c10e2f0b0c18f6d74cb6d41065f8fee0fe2bd39c

    • SHA512

      27df2876b389d0af3a8d2b35d23cf3ed648330c8fe181e25fd287cc84cf1295c821f3dd0ea494cb900606d18b45829cb086b7e07a3e977bbfdcd7ae815355cd0

    • SSDEEP

      1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKg:xPd4n/M+WLcilrpgGH/GwY87mVmIXGD3

    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