General

  • Target

    FenixCheatBETA.exe

  • Size

    25.5MB

  • Sample

    230315-ar2qvsce2v

  • MD5

    4ffd42d26dc1f942be4154c18ce3be55

  • SHA1

    44dfc8e59cbbdda58d03f81ef4ea57566f528858

  • SHA256

    571ddfbe3251be2f3908505e755ebf70dab52fe6bf6cddf875991afa940efaab

  • SHA512

    d50cfc6b488fb701c643e08a48a9e69af50ab7c6589f2911bb07abf411777d0fb34a136e91f19896b3da518e85c82f2c276c6baffecb3f8d20820a9e2ac6df54

  • SSDEEP

    393216:erES87bfONTU7MEmKbOaVan4W2tlXXQ1K3BflIYGloxEHJy9SN/AjMQ2bgQaQsiB:I8vV7TXSaQZ+cGflUYEWgtQogQaa23W

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

products-behalf.at.ply.gg:6320

Mutex

c23b61cb-eabd-4e27-8555-54877e46a96f

Attributes
  • encryption_key

    46B3B352EE74A03CFD2F29605A3A4FEDFCA67DDD

  • install_name

    Microsoft.exe

  • log_directory

    crashlogs

  • reconnect_delay

    3000

  • startup_key

    Microsoft Windows

  • subdirectory

    Microsoft

Extracted

Family

quasar

Version

1.4.0

Botnet

FenixFN

C2

region-remarks.at.ply.gg:28982

Mutex

d8be406e-39d8-4c7b-9a06-eddd3d2b4731

Attributes
  • encryption_key

    B7C9B35BDD90869A55A0CEF7257C297ED4BAE201

  • install_name

    Dashboard.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    System

  • subdirectory

    SubDir

Targets

    • Target

      FenixCheatBETA.exe

    • Size

      25.5MB

    • MD5

      4ffd42d26dc1f942be4154c18ce3be55

    • SHA1

      44dfc8e59cbbdda58d03f81ef4ea57566f528858

    • SHA256

      571ddfbe3251be2f3908505e755ebf70dab52fe6bf6cddf875991afa940efaab

    • SHA512

      d50cfc6b488fb701c643e08a48a9e69af50ab7c6589f2911bb07abf411777d0fb34a136e91f19896b3da518e85c82f2c276c6baffecb3f8d20820a9e2ac6df54

    • SSDEEP

      393216:erES87bfONTU7MEmKbOaVan4W2tlXXQ1K3BflIYGloxEHJy9SN/AjMQ2bgQaQsiB:I8vV7TXSaQZ+cGflUYEWgtQogQaa23W

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks whether UAC is enabled

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks