Overview

overview

10

Static

static

1

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    tmp

  • Size

    6.7MB

  • Sample

    230325-rjb9nsda74

  • MD5

    82792ba7124ecaa06893c3a6989bc70a

  • SHA1

    c7caa0f4f696e38f4adb20a3efa2334f8a18675c

  • SHA256

    7a6d23d9845bb08f5f50a89a909fc5dfc865cb77a9e44f370b56fd22d7a7f74f

  • SHA512

    907d19656886883c6c4fe10657bef9d7380be3b7c16a23d448924d33577df8f552e6c4feca379bbf14bfc4d5c390114e8ad84965bb03d97d0cad5a046371e9b0

  • SSDEEP

    196608:SdpVzj3zsdu95DsmQDzgnxUd9B0IETkQHXrjAYaUxHfl:eVzjjsdAsNzt9OIETkSXrj9txHfl

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

      tmp

    • Size

      6.7MB

    • MD5

      82792ba7124ecaa06893c3a6989bc70a

    • SHA1

      c7caa0f4f696e38f4adb20a3efa2334f8a18675c

    • SHA256

      7a6d23d9845bb08f5f50a89a909fc5dfc865cb77a9e44f370b56fd22d7a7f74f

    • SHA512

      907d19656886883c6c4fe10657bef9d7380be3b7c16a23d448924d33577df8f552e6c4feca379bbf14bfc4d5c390114e8ad84965bb03d97d0cad5a046371e9b0

    • SSDEEP

      196608:SdpVzj3zsdu95DsmQDzgnxUd9B0IETkQHXrjAYaUxHfl:eVzjjsdAsNzt9OIETkSXrj9txHfl

    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

    • 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

    • Loads dropped DLL

    • 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

    behavioral1behavioral2

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

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks