Overview

overview

10

Static

static

7

1.exe

windows7_x64

10

1.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    1.exe

  • Size

    2.8MB

  • Sample

    220525-z623lshagj

  • MD5

    df7bcc6a339e5d1d61f040c538669b2b

  • SHA1

    13fa8f30a4728285d230aa625ec4281431a4b023

  • SHA256

    e44d45e08e69bdd44317e5cac98e49b242323e87f5a706ca870dd25079af1d17

  • SHA512

    cf2a68ba9646d4d65abae71981d4e69bdd218d6ef977d897fd099151bb127afac75a202cf63e58e8271f62c204c94fa01615699c0c0ab7c4ec8a963e70e8ceee

Score
10/10
remcosrh1evasionpersistenceratthemidatrojan

Malware Config

Extracted

Family

remcos

Botnet

RH1

C2

185.29.9.125:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    itunes.exe

  • copy_folder

    RMS

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Jd1985-XODZWD

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Rms

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target

      1.exe

    • Size

      2.8MB

    • MD5

      df7bcc6a339e5d1d61f040c538669b2b

    • SHA1

      13fa8f30a4728285d230aa625ec4281431a4b023

    • SHA256

      e44d45e08e69bdd44317e5cac98e49b242323e87f5a706ca870dd25079af1d17

    • SHA512

      cf2a68ba9646d4d65abae71981d4e69bdd218d6ef977d897fd099151bb127afac75a202cf63e58e8271f62c204c94fa01615699c0c0ab7c4ec8a963e70e8ceee

    Score
    10/10
    remcosrh1evasionpersistenceratthemidatrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

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

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks