Overview

overview

10

Static

static

10

svchost.exe

windows10-1703-x64

10

svchost.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    svchost.exe

  • Size

    242KB

  • Sample

    240619-1x3s8atela

  • MD5

    05e991bcf019b487f7ad4e896c77e988

  • SHA1

    f4a93e4ce16dba10cdc835fe1ae71da3dd88f73a

  • SHA256

    cb87011623c7e41c0a449814e76c887543e6e39e6ab3864c7cc3636dcf09e196

  • SHA512

    4f4ee0153af79dbb6352b1382cbee3b5af72c64f827450d2a681fd2b3177304ac1c6626c055159facb84aca9f8ba6aa9d1265d5fb148080e566903949081cfb3

  • SSDEEP

    6144:GpCE/UVPy/oCa+LDZWC9z5B0bmknq1difFN:6CzPygCa+DZ+nq1cT

Score
10/10
limeratdefense_evasionevasionexecutionimpactransomwarerattrojan

Malware Config

Extracted

Family

limerat

Wallets

False

Attributes
  • aes_key

    1

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/GfV4LBjE

  • download_payload

    true

  • install

    true

  • install_name

    svchost.exe

  • main_folder

    False

  • 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

      svchost.exe

    • Size

      242KB

    • MD5

      05e991bcf019b487f7ad4e896c77e988

    • SHA1

      f4a93e4ce16dba10cdc835fe1ae71da3dd88f73a

    • SHA256

      cb87011623c7e41c0a449814e76c887543e6e39e6ab3864c7cc3636dcf09e196

    • SHA512

      4f4ee0153af79dbb6352b1382cbee3b5af72c64f827450d2a681fd2b3177304ac1c6626c055159facb84aca9f8ba6aa9d1265d5fb148080e566903949081cfb3

    • SSDEEP

      6144:GpCE/UVPy/oCa+LDZWC9z5B0bmknq1difFN:6CzPygCa+DZ+nq1cT

    Score
    10/10
    limeratdefense_evasionevasionexecutionimpactransomwarerattrojan

    • 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 Windows Defender Real-time Protection settings

      evasiontrojan

    • Modifies security service

      evasion

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      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
    behavioral1behavioral2

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

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

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

4
T1564

Hidden Files and Directories

4
T1564.001

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

6
T1112

Credential Access

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

5
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks