Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client.exe

  • Size

    241KB

  • Sample

    240619-rvffgasbqh

  • MD5

    ccc910296b7389ba076ffeed54ec400b

  • SHA1

    6dc995e663fd4c84d35ace40733df462f3282340

  • SHA256

    ebf854c44cf0407faa99b0a60ced1b4805c33249cbc0828554cf1aef7b1c1c79

  • SHA512

    45ef0543176424185603492d7c9043f6b28b30611776d04606d4d041f385ab81f4c814d107b8d354baa3c43402be82fe82658fbf7348b9d89a9c0cde1e40b86c

  • SSDEEP

    6144:x5WE/UVPy/oCa+LDZWC9z51hDba8DTknq1di7QN:vWzPygCa+DZ7Dgnq1c4

Score
10/10
limeratdefense_evasionevasionexecutionimpactpersistenceransomwarerattrojan

Malware Config

Extracted

Family

limerat

Wallets

False

Attributes
  • aes_key

    1

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/wEZKjNzb

  • download_payload

    false

  • install

    true

  • install_name

    svchost.exe

  • main_folder

    True

  • payload_url

    True

  • pin_spread

    true

  • sub_folder

    False

  • usb_spread

    false

Extracted

Credentials

  • Protocol:     ftp
  • Host:
    ftp.encompossoftware.com
  • Port:
    21
  • Username:
    remoteuser
  • Password:
    Encomposx99

Targets

    • Target

      Client.exe

    • Size

      241KB

    • MD5

      ccc910296b7389ba076ffeed54ec400b

    • SHA1

      6dc995e663fd4c84d35ace40733df462f3282340

    • SHA256

      ebf854c44cf0407faa99b0a60ced1b4805c33249cbc0828554cf1aef7b1c1c79

    • SHA512

      45ef0543176424185603492d7c9043f6b28b30611776d04606d4d041f385ab81f4c814d107b8d354baa3c43402be82fe82658fbf7348b9d89a9c0cde1e40b86c

    • SSDEEP

      6144:x5WE/UVPy/oCa+LDZWC9z51hDba8DTknq1di7QN:vWzPygCa+DZ7Dgnq1c4

    Score
    10/10
    limeratdefense_evasionevasionexecutionimpactpersistenceransomwarerattrojan

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • LimeRAT

      Simple yet powerful RAT for Windows machines written in .NET.

      ratlimerat

    • Modifies WinLogon for persistence

      persistence

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Modifies security service

      evasion

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Direct Volume Access

1
T1006

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

4
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks