Overview

overview

10

Static

static

3

b4ea9fc889...5a.exe

windows7-x64

10

b4ea9fc889...5a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a

  • Size

    926KB

  • Sample

    241014-rf7w6stapr

  • MD5

    4d6e7990958750655c63899f3b4e96aa

  • SHA1

    f4113dd8af0bc21a471273d17f4572f6d23782eb

  • SHA256

    b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a

  • SHA512

    b16b32d1076112835c6ade4b40b76cf98d851ae066c0f4b9d2054ce8c8208cc03a7fa0f3d59234d690fb37deb4775fd8f306eacd92c69df49d18c8b2331870e1

  • SSDEEP

    24576:gduE/JmHlhNBv7XVWJp75vbl+JtiS6AMX+:g0E/JqNZZWJp9bl+96AMO

Score
10/10
remcoszynovadiscoveryexecutionrat

Malware Config

Extracted

Family

remcos

Botnet

zynova

C2

cloudsave.duckdns.org:14645

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-CJ3HJ1

  • 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

      b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a

    • Size

      926KB

    • MD5

      4d6e7990958750655c63899f3b4e96aa

    • SHA1

      f4113dd8af0bc21a471273d17f4572f6d23782eb

    • SHA256

      b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a

    • SHA512

      b16b32d1076112835c6ade4b40b76cf98d851ae066c0f4b9d2054ce8c8208cc03a7fa0f3d59234d690fb37deb4775fd8f306eacd92c69df49d18c8b2331870e1

    • SSDEEP

      24576:gduE/JmHlhNBv7XVWJp75vbl+JtiS6AMX+:g0E/JqNZZWJp9bl+96AMO

    Score
    10/10
    remcoszynovadiscoveryexecutionrat

    • Remcos

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

      ratremcos

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks