Overview

overview

10

Static

static

10

b3738f1c75...4d.exe

windows10-2004-x64

10

b3738f1c75...4d.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    b3738f1c75e476a430aad7db37bc98b72f6315909bf4b9dc2f320d587e41174d.bin
  • Size 487KB
  • Sample260730-qj9phaaa88
  • SHA256 b3738f1c75e476a430aad7db37bc98b72f6315909bf4b9dc2f320d587e41174d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcossrvdiscoverypersistencerat

Malware Config

Extracted

Family

  • remcos

Version

  • 6.1.0 Pro

Botnet

  • SRV

C2

  • 5.181.157.26:40000

  • 5.181.157.26:50000

  • 5.181.157.26:4899

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    update.exe

  • copy_folder

    RST

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    rmc

  • mouse_option

    false

  • mutex

    FUL-EQMFKH

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

  • remcos

Botnet

  • SRV

C2

  • 5.181.157.26:40000

  • 5.181.157.26:50000

  • 5.181.157.26:4899

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    update.exe

  • copy_folder

    RST

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    rmc

  • mouse_option

    false

  • mutex

    FUL-EQMFKH

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      b3738f1c75e476a430aad7db37bc98b72f6315909bf4b9dc2f320d587e41174d.bin
    • Size 487KB
    • SHA256 b3738f1c75e476a430aad7db37bc98b72f6315909bf4b9dc2f320d587e41174d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    srvdiscoveryremcospersistencerat

    • Family: Remcos

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

      ratremcos

    • Adds policy Run key to start application

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks