Overview

overview

10

Static

static

10

1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1.exe

  • Size

    36KB

  • Sample

    230218-sp819sce77

  • MD5

    955254331ec1b57550742ed9b353b00f

  • SHA1

    3a00c062489de5371742bc5eca43ae8ec32affac

  • SHA256

    e088712c8943c56456635938bc9668f0ca0724086525de9dc736ae5e77ee17a0

  • SHA512

    5e1aa13cf78fe3d6bfbc15eb2155dad30f0a6e6ea533df7f34ab06eb85ab87fa225c313753fc1886770c9990f2e87400fbfa7bea9a557f9f2acec8d3481b4d70

  • SSDEEP

    768:P5PHyCjmhFdWfLubuZ1kvIaEekM2C8cZNr1:P5PHfjGPAKbLVUer

Score
10/10
remcos1877evasionpersistenceratupx

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

1877

C2

hawler.duckdns.org:2404

5.206.227.115:2404
Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    svshost.exe

  • copy_folder

    1877

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    1877

  • keylog_path

    %AppData%

  • mouse_option

    true

  • mutex

    1877_spelzoyulk

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Google Update

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      1.exe

    • Size

      36KB

    • MD5

      955254331ec1b57550742ed9b353b00f

    • SHA1

      3a00c062489de5371742bc5eca43ae8ec32affac

    • SHA256

      e088712c8943c56456635938bc9668f0ca0724086525de9dc736ae5e77ee17a0

    • SHA512

      5e1aa13cf78fe3d6bfbc15eb2155dad30f0a6e6ea533df7f34ab06eb85ab87fa225c313753fc1886770c9990f2e87400fbfa7bea9a557f9f2acec8d3481b4d70

    • SSDEEP

      768:P5PHyCjmhFdWfLubuZ1kvIaEekM2C8cZNr1:P5PHfjGPAKbLVUer

    Score
    10/10
    remcos1877evasionpersistenceratupx

    • Modifies WinLogon for persistence

      persistence

    • Remcos

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

      ratremcos

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

      evasion

    • Adds policy Run key to start application

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Modifies WinLogon

      persistence

    • Program crash

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

2
T1004

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Defense Evasion

Modify Registry

4
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks