Overview

overview

10

Static

static

10

CHEAT.rar

windows7-x64

10

CHEAT.rar

windows10-2004-x64

3

Sharing

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General

  • Target

    CHEAT.rar

  • Size

    36.3MB

  • Sample

    250209-dvjagavphn

  • MD5

    203ba38accab7ff9b181c88176d7e17f

  • SHA1

    33bd9fc89e77faed86bda399d018f9413f6eba73

  • SHA256

    eab5f974ec202f9576335f50646b1a7e6725557b1227b8f96ecc889c15498905

  • SHA512

    2cc04354147ef18f22c753303f4417744d349d41a1eb6ea28ef8ffad3831aa3e6317b698c24b3c1dc0ef60ed4e38564d21be4afc9a485ea22ec75dbe739f76a7

  • SSDEEP

    786432:cQ1zPwv64YV/iSmT3kJtj88ZEP87mD+cmodF2fppwcPX/fzi82lb7O:hLB4YMhT0JtiKmiodiHvPWJlb7O

Score
10/10
quasaroffice04defense_evasiondiscoveryexecutionpersistencespywarethemidatrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.0.1.100:4782

Mutex

ed337c2a-f410-44a6-a75b-740207b7d8db

Attributes
  • encryption_key

    6D00964D3D31D45131A3ECADA49AED6AAB6AAED0

  • install_name

    CHEAT.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      CHEAT.rar

    • Size

      36.3MB

    • MD5

      203ba38accab7ff9b181c88176d7e17f

    • SHA1

      33bd9fc89e77faed86bda399d018f9413f6eba73

    • SHA256

      eab5f974ec202f9576335f50646b1a7e6725557b1227b8f96ecc889c15498905

    • SHA512

      2cc04354147ef18f22c753303f4417744d349d41a1eb6ea28ef8ffad3831aa3e6317b698c24b3c1dc0ef60ed4e38564d21be4afc9a485ea22ec75dbe739f76a7

    • SSDEEP

      786432:cQ1zPwv64YV/iSmT3kJtj88ZEP87mD+cmodF2fppwcPX/fzi82lb7O:hLB4YMhT0JtiKmiodiHvPWJlb7O

    Score
    10/10
    quasaroffice04defense_evasionexecutionpersistencespywarethemidatrojandiscovery

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

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

      defense_evasion

    • Creates new service(s)

      persistenceexecution

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks