Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client.exe

  • Size

    243KB

  • Sample

    240618-ztjqha1apn

  • MD5

    91514e73831a2a7c33a4717b8919a701

  • SHA1

    4567e93d361355d132c38945c16ad4cc2d8dfb40

  • SHA256

    5434600792908e06aada3ae4126942fe553fad402683db1e4bdd11b4b3e3cd12

  • SHA512

    961f4e24526b51cb004a09aec64a0f3e4c89f6dc3f3d760ccf1460ea16a7659655b7f1fc5e5f9f12976dbc2fad49d4db0f18ab7988aa6e30421d53d9e2cb2cdc

  • SSDEEP

    6144:qCoE/UVPy/oCa+LDZWC9z5dHbC/Gknq1diPpN:dozPygCa+DZ+nq1cH

Score
10/10
limeratdefense_evasionevasionexecutionimpactpersistenceransomwarerattrojan

Malware Config

Extracted

Family

limerat

Wallets

False

Attributes
  • aes_key

    1

  • antivm

    false

  • c2_url

    https://pastebin.com/VcZNj6wE

  • 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

      243KB

    • MD5

      91514e73831a2a7c33a4717b8919a701

    • SHA1

      4567e93d361355d132c38945c16ad4cc2d8dfb40

    • SHA256

      5434600792908e06aada3ae4126942fe553fad402683db1e4bdd11b4b3e3cd12

    • SHA512

      961f4e24526b51cb004a09aec64a0f3e4c89f6dc3f3d760ccf1460ea16a7659655b7f1fc5e5f9f12976dbc2fad49d4db0f18ab7988aa6e30421d53d9e2cb2cdc

    • SSDEEP

      6144:qCoE/UVPy/oCa+LDZWC9z5dHbC/Gknq1diPpN:dozPygCa+DZ+nq1cH

    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