Overview

overview

10

Static

static

10

na.exe

windows7_x64

10

na.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    13a01ab49ce46ef8c0b777be39442175acb0c2ff43f18430549a9927c991885b

  • Size

    140KB

  • Sample

    220521-pn6mzaahek

  • MD5

    2964f55c3286b818da2f336f52dcca73

  • SHA1

    71097d14e91a4a82f2559932bd1f4aa77326ea6b

  • SHA256

    13a01ab49ce46ef8c0b777be39442175acb0c2ff43f18430549a9927c991885b

  • SHA512

    fbe9f1d8bbef6f0855d7e6f180799a0c46790de3183e7fdbadda050a1a178ef2f28fb69fcaf198d7d32d2484a4e370b357f1ff4db42e3562d49689fd8f252a12

Score
10/10
remcos.netagilenetpersistencerat

Malware Config

Extracted

Family

remcos

Version

2.5.1 Pro

Botnet

.NET

C2

noapology.myq-see.com:5149

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    vlc

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    app

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remoteaccess-ERAX9A

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    remoteaccess

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Targets

    • Target

      na.exe

    • Size

      343KB

    • MD5

      9125179a330454ca85b14de64a89faa6

    • SHA1

      1965ecfcd7181d6936565ab1f73ec594ed4c71a2

    • SHA256

      52360edd07bcd18738ccc44906897ece6c659883978d6ed61bd1e73dca205bd4

    • SHA512

      6054701500d7247be4d365be2a8501ff4fc24c5b523e002a8aefec7e01f8434bc62fc59aaabce9e4438cf8dfc623531c988b255a087355b8e7b4e2bfe4361890

    Score
    10/10
    remcos.netagilenetpersistencerat

    • Remcos

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

      ratremcos

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

      agilenet

    • 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

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks