Overview

overview

10

Static

static

1

Nova.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Nova.exe

  • Size

    5KB

  • Sample

    230326-fzy8laff27

  • MD5

    57555a432c484e66787a99daa445a6fd

  • SHA1

    17d3f2e64d44521a79e4a77cdd655fb0dae2be41

  • SHA256

    a8a35310d0b8e796c4e50733736fbbd1e46745df164f565a1e91423102f4422d

  • SHA512

    5662e2d437bacda9a69000cec84bc6d52e8c7f6a21c56e4cd2a33e41e992909fcc79da09701388e0fff29d588f9a77630180ff49e4cef31f8617455a81e9ee9d

  • SSDEEP

    96:pzu+ZJVQ3D7Q9tmH7n+flk2sZJX1ZLgFdy:bOI9tmbnyYZl1ZLg6

Score
10/10
remcosremotehostevasionpersistencerattrojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

141.95.16.111:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Chrome.exe

  • copy_folder

    Chrome

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-EOPK3X

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    GoogleChrome

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Nova.exe

    • Size

      5KB

    • MD5

      57555a432c484e66787a99daa445a6fd

    • SHA1

      17d3f2e64d44521a79e4a77cdd655fb0dae2be41

    • SHA256

      a8a35310d0b8e796c4e50733736fbbd1e46745df164f565a1e91423102f4422d

    • SHA512

      5662e2d437bacda9a69000cec84bc6d52e8c7f6a21c56e4cd2a33e41e992909fcc79da09701388e0fff29d588f9a77630180ff49e4cef31f8617455a81e9ee9d

    • SSDEEP

      96:pzu+ZJVQ3D7Q9tmH7n+flk2sZJX1ZLgFdy:bOI9tmbnyYZl1ZLg6

    Score
    10/10
    remcosremotehostevasionpersistencerattrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks