Overview

overview

10

Static

static

7

c241c794d9...eb.exe

windows7-x64

10

c241c794d9...eb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c241c794d9907434ffb83508ea0f5eeb

  • Size

    404KB

  • Sample

    240312-c8qq2afh76

  • MD5

    c241c794d9907434ffb83508ea0f5eeb

  • SHA1

    9083b8bfc8c5e94ed517134fb9ea9e798fb10ab3

  • SHA256

    a605d51f7da78056ad5a2922d08b852b905acfe17f052156338b5df58c6a6b76

  • SHA512

    21cbded7587d58a78ea453b82f907b149f9193c9fd3fb977739920ec0c3b2120ce9afaf318d29ff0f72858b62b5afd64e06cb8237256a094a345ea334517432c

  • SSDEEP

    6144:m//Ic8/hZ8lsQ2fTQqOqIrIOmGCMdxT/y03RrAC1Hatc9cq7:mp8cQTQqOJrIOLdB/yoREC1HIi5

Score
10/10
remcoshostpersistenceratupx

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

185.140.53.37:1900

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_ewbkendenhpkpep

  • 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

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

185.140.53.37:1900

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_ewbkendenhpkpep

  • 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

      c241c794d9907434ffb83508ea0f5eeb

    • Size

      404KB

    • MD5

      c241c794d9907434ffb83508ea0f5eeb

    • SHA1

      9083b8bfc8c5e94ed517134fb9ea9e798fb10ab3

    • SHA256

      a605d51f7da78056ad5a2922d08b852b905acfe17f052156338b5df58c6a6b76

    • SHA512

      21cbded7587d58a78ea453b82f907b149f9193c9fd3fb977739920ec0c3b2120ce9afaf318d29ff0f72858b62b5afd64e06cb8237256a094a345ea334517432c

    • SSDEEP

      6144:m//Ic8/hZ8lsQ2fTQqOqIrIOmGCMdxT/y03RrAC1Hatc9cq7:mp8cQTQqOJrIOLdB/yoREC1HIi5

    Score
    10/10
    remcoshostpersistenceratupx

    • Remcos

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

      ratremcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks