Overview

overview

10

Static

static

7

3.exe

windows7_x64

10

3.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3.exe

  • Size

    2.9MB

  • Sample

    220525-z7zzmsdcb2

  • MD5

    046804d6a8900b2fff9596823db0ce93

  • SHA1

    0857ec6ee9d27042117d30a86f968ef6864d6e42

  • SHA256

    abde95665f00d689ae82d87023f15c909e8648e5d320b7fe680cdf910ec489ad

  • SHA512

    0a9c989453e9d9829a79922ddff9c464f4653f8db84a140e8e94f813568ed933e0290aad0ea0523a8e0579b2ff2428af231c73a879e1dd0cfb8aae6dbd329202

Score
10/10
remcosrh1evasionpersistenceratspywarestealerthemidatrojan

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

      3.exe

    • Size

      2.9MB

    • MD5

      046804d6a8900b2fff9596823db0ce93

    • SHA1

      0857ec6ee9d27042117d30a86f968ef6864d6e42

    • SHA256

      abde95665f00d689ae82d87023f15c909e8648e5d320b7fe680cdf910ec489ad

    • SHA512

      0a9c989453e9d9829a79922ddff9c464f4653f8db84a140e8e94f813568ed933e0290aad0ea0523a8e0579b2ff2428af231c73a879e1dd0cfb8aae6dbd329202

    Score
    10/10
    remcosrh1evasionpersistenceratthemidatrojanspywarestealer

    • 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

    • Nirsoft

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • 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

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks