Overview

overview

10

Static

static

3

e658ef4c_b...60.exe

windows7-x64

10

e658ef4c_b...60.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    e658ef4c_bad6ae50d5d4ad1a3b7f13a77a35445a8ef951cf2e64dc7da233ecc64437d760

  • Size

    3.1MB

  • Sample

    241111-178r8a1nbm

  • MD5

    e658ef4c4d5ace9436d584867ea1b0c3

  • SHA1

    dcf9de3c1564a507e49341995e87a62ca66bb6b6

  • SHA256

    bad6ae50d5d4ad1a3b7f13a77a35445a8ef951cf2e64dc7da233ecc64437d760

  • SHA512

    2d653ebe568aebd982ee4376deb2418a737b47fd9b338585b081bc6cb472fd05ce045ef1440459d49d613837fb4091c808f36c09295d9c101ce803467cf850cd

  • SSDEEP

    98304:8yWI/88Y+grNrldv/RNlZAq+xuQ5GfnzMKn3F72:xWI/oNXJNPAq+P+v3F72

Score
10/10
quasarefidiscoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

EFI

C2

new-knee.at.ply.gg:53711

Mutex

e8c09e3a-b5d2-441c-84c6-ff0fc9c9f4d8

Attributes
  • encryption_key

    4FAE28501315EF65874826A422DFBF6E6289A60C

  • install_name

    EFIclient.exe

  • log_directory

    EACSHUTT

  • reconnect_delay

    3000

  • startup_key

    EFIWINDOWSMENAGER

  • subdirectory

    EFI

Targets

    • Target

      e658ef4c_bad6ae50d5d4ad1a3b7f13a77a35445a8ef951cf2e64dc7da233ecc64437d760

    • Size

      3.1MB

    • MD5

      e658ef4c4d5ace9436d584867ea1b0c3

    • SHA1

      dcf9de3c1564a507e49341995e87a62ca66bb6b6

    • SHA256

      bad6ae50d5d4ad1a3b7f13a77a35445a8ef951cf2e64dc7da233ecc64437d760

    • SHA512

      2d653ebe568aebd982ee4376deb2418a737b47fd9b338585b081bc6cb472fd05ce045ef1440459d49d613837fb4091c808f36c09295d9c101ce803467cf850cd

    • SSDEEP

      98304:8yWI/88Y+grNrldv/RNlZAq+xuQ5GfnzMKn3F72:xWI/oNXJNPAq+P+v3F72

    Score
    10/10
    quasarefidiscoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks