Overview

overview

10

Static

static

1

URLScan

urlscan

1

http://20.214.232.149

windows10-2004-x64

10

Sharing

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General

  • Target

    http://20.214.232.149

  • Sample

    230323-yfap1ahg46

Score
10/10
quasarheu_aheu_tevasionspywarethemidatrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

HEU_A

C2

hacker.548848.xyz:4000

Mutex

QSR_MUTEX_y7qRPJXwrKoCCGjifB

Attributes
  • encryption_key

    zOtqF7XIGfeSwK3tze2l

  • install_name

    IntelServiceUpdate.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Intel Service Update

  • subdirectory

    IntelServiceUpdate

Extracted

Family

quasar

Version

1.3.0.0

Botnet

HEU_T

C2

81.68.120.79:4000

Mutex

QSR_MUTEX_kWiUJRAFspPTbob5of

Attributes
  • encryption_key

    7GHKJ6ZgFY9nVhHS7b4U

  • install_name

    IntelService.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Intel Service

  • subdirectory

    IntelService

Targets

    • Target

      http://20.214.232.149

    Score
    10/10
    quasarheu_aheu_tevasionspywarethemidatrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

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

      evasion

    • Downloads MZ/PE file

    • 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.

    • Executes dropped EXE

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks