Overview

overview

10

Static

static

7

185rms.exe

windows7_x64

10

185rms.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    185rms.jpg

  • Size

    2.8MB

  • Sample

    220626-fxrezaadb7

  • MD5

    6cfceeb676d49151e8c2fec9c4209789

  • SHA1

    42c87894f183c3612e1662f531003bbe7478f875

  • SHA256

    a2fad2958e6dd09d0d980d4e5d158c2a2eb18963d47fc95779c22bc2d203cb8e

  • SHA512

    a371d0b6f4bed336e01b6025cc584f27f939f0fea9f92e36aa63295164e31eebccf24cdae24e04fcbdb0545169454d3b9944630c2cfde49dd8681496005cac89

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

      185rms.jpg

    • Size

      2.8MB

    • MD5

      6cfceeb676d49151e8c2fec9c4209789

    • SHA1

      42c87894f183c3612e1662f531003bbe7478f875

    • SHA256

      a2fad2958e6dd09d0d980d4e5d158c2a2eb18963d47fc95779c22bc2d203cb8e

    • SHA512

      a371d0b6f4bed336e01b6025cc584f27f939f0fea9f92e36aa63295164e31eebccf24cdae24e04fcbdb0545169454d3b9944630c2cfde49dd8681496005cac89

    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

    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