Overview

overview

10

Static

static

3HkvftGZK9KZ.exe

windows7-x64

10

3HkvftGZK9KZ.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    3HkvftGZK9KZ.exe
  • Size 1.3MB
  • Sample221011-l798qahef9
  • SHA256 4a412162a0b00623211b7303bc18b00b76d196ea8343a2c35abc262e9e97c9b2
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
limeratquasaroffice04persistenceratspywarestealertrojan

Malware Config

Extracted

Family

  • quasar

Attributes
  • reconnect_delay

    3000

Extracted

Family

  • quasar

Version

  • 1.4.0

Botnet

  • Office04

C2

  • 173.225.115.99:7702

Mutex

  • ecce8627-6b34-425d-8f0e-3a8923c66220

Attributes
  • encryption_key

    F04A75E6507173FAEEC2BB82C564030A5E8413FF

  • install_name

    ser.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    quar

Extracted

Family

  • limerat

Attributes
  • aes_key

    082808

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/Mh8T0LJe

  • delay

    6

  • download_payload

    false

  • install

    true

  • install_name

    limo.exe

  • main_folder

    Temp

  • payload_url

    https://mdl.arabou.edu.kw/ksa/user/profile/field/text/lang/en/VB64.exe

  • pin_spread

    true

  • sub_folder

    \Windows\

  • usb_spread

    true

Targets

    • Target
      3HkvftGZK9KZ.exe
    • Size 1.3MB
    • SHA256 4a412162a0b00623211b7303bc18b00b76d196ea8343a2c35abc262e9e97c9b2
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojanlimeratpersistenceratstealer

    • LimeRAT

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

      ratlimerat

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks