Overview

overview

10

Static

static

3

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file.exe

  • Size

    2.8MB

  • Sample

    241208-s4rersspcn

  • MD5

    a4de831aec191850ac5b336069ce3d40

  • SHA1

    df6263aae32913b94a1d45e9ba7f9124bcd5fe33

  • SHA256

    0217b5932fcaf4679b2d394d5dd2f10775774d9e7b2d0679d6aace357e085cf8

  • SHA512

    64dd2342b6f177b73be0d1ff2df5b1ab1dd12bc511e944345c60cc233e7812a01958a867bc05f3158312e3d5e20a7ce9bb1e1d7b87b37bef2f915e6b1e87d552

  • SSDEEP

    49152:AxNkorvlIxM2zCY45vnOvRN39ELjD7xY0hJQh4CQubvWhNcCv59fykXDBFOedq:srblIxMnY45vOpNNELjD7xFJQh/QWvWL

Score
10/10
quasarvuictimdiscoveryevasionspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

vuictim

C2

91.214.78.16:7000

Mutex

42d886c4-74fa-480d-8b7e-5fe1ac03ba03

Attributes
  • encryption_key

    D72F5D077DE4AC156A670D7D920C697F5FB66FA8

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft edge

  • subdirectory

    SubDir

Targets

    • Target

      file.exe

    • Size

      2.8MB

    • MD5

      a4de831aec191850ac5b336069ce3d40

    • SHA1

      df6263aae32913b94a1d45e9ba7f9124bcd5fe33

    • SHA256

      0217b5932fcaf4679b2d394d5dd2f10775774d9e7b2d0679d6aace357e085cf8

    • SHA512

      64dd2342b6f177b73be0d1ff2df5b1ab1dd12bc511e944345c60cc233e7812a01958a867bc05f3158312e3d5e20a7ce9bb1e1d7b87b37bef2f915e6b1e87d552

    • SSDEEP

      49152:AxNkorvlIxM2zCY45vnOvRN39ELjD7xY0hJQh4CQubvWhNcCv59fykXDBFOedq:srblIxMnY45vOpNNELjD7xFJQh/QWvWL

    Score
    10/10
    quasarvuictimdiscoveryevasionspywaretrojan

    • 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)

      evasion

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

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

      evasion

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks