Overview

overview

10

Static

static

185rms.exe

windows7_x64

10

185rms.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    185rms

  • Size

    637KB

  • Sample

    220507-ej17ksahg9

  • MD5

    ff5c66d9ef5df3b79252e8602fa1483c

  • SHA1

    4eeb2b099a6b1cd405524da957889feea23d03e7

  • SHA256

    6c850db24fb134eb4f87e3de49ffa51b4c21106d9e778657a687236e4e49999c

  • SHA512

    689f74f0634eeed951374d747661cb8026587f519ffa16b32c0524420e9fbbccd2adca33aee1feb14bad255443be4217064c99d643d01c7cb6d49edffd919da4

Score
10/10
remcosrh1evasionpersistencerattrojan

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

    • Size

      637KB

    • MD5

      ff5c66d9ef5df3b79252e8602fa1483c

    • SHA1

      4eeb2b099a6b1cd405524da957889feea23d03e7

    • SHA256

      6c850db24fb134eb4f87e3de49ffa51b4c21106d9e778657a687236e4e49999c

    • SHA512

      689f74f0634eeed951374d747661cb8026587f519ffa16b32c0524420e9fbbccd2adca33aee1feb14bad255443be4217064c99d643d01c7cb6d49edffd919da4

    Score
    10/10
    remcosrh1evasionpersistencerattrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • 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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks