Overview

overview

10

Static

static

6e9b01ab84...db.exe

windows7_x64

10

6e9b01ab84...db.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    6e9b01ab841c3b57bbdd4068ffed0f937bc370401b8cdcefc2dfa1dca130a9db

  • Size

    2.2MB

  • Sample

    220520-3gcm7sghb5

  • MD5

    faa3ca0d0141f9fe88188504bc3bac89

  • SHA1

    edd03d0de17de2caef384daf792118cfdefc0fa8

  • SHA256

    6e9b01ab841c3b57bbdd4068ffed0f937bc370401b8cdcefc2dfa1dca130a9db

  • SHA512

    b5693333a3ae10dbf5707927d85ea8e96fbd668b822bd9a337b13df374957720db9c03e4d801d75244902f29a6bbb7dc882647f45fcd5ccf8d8d496307b85922

Score
10/10
quasaralekfuddevasionpersistencespywaresuricatatrojan

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

AlekFudd

C2

52.188.202.106:8888

Mutex

9QxkaRC5yCiT4nYveU

Attributes
  • encryption_key

    p22ObTAqvAaz7xZDWYTK

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Malwarebytes Corp.

  • subdirectory

    SubDir

Targets

    • Target

      6e9b01ab841c3b57bbdd4068ffed0f937bc370401b8cdcefc2dfa1dca130a9db

    • Size

      2.2MB

    • MD5

      faa3ca0d0141f9fe88188504bc3bac89

    • SHA1

      edd03d0de17de2caef384daf792118cfdefc0fa8

    • SHA256

      6e9b01ab841c3b57bbdd4068ffed0f937bc370401b8cdcefc2dfa1dca130a9db

    • SHA512

      b5693333a3ae10dbf5707927d85ea8e96fbd668b822bd9a337b13df374957720db9c03e4d801d75244902f29a6bbb7dc882647f45fcd5ccf8d8d496307b85922

    Score
    10/10
    quasaralekfuddevasionpersistencespywaresuricatatrojan

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • suricata: ET MALWARE Common RAT Connectivity Check Observed

      suricata: ET MALWARE Common RAT Connectivity Check Observed

      suricata

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

      evasion

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks