Overview

overview

10

Static

static

3

3951a3346b...18.exe

windows7-x64

10

3951a3346b...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3951a3346bf64f1a04c36e9c82da3a7e_JaffaCakes118

  • Size

    750KB

  • Sample

    240512-k1wajshb8z

  • MD5

    3951a3346bf64f1a04c36e9c82da3a7e

  • SHA1

    bc66506f01a1433ef1b8775967e37e471a8cbf4a

  • SHA256

    812f2eb0ddd697fb459b8d5995315862bf1de986fc678bdb07acf91020a158a7

  • SHA512

    2b76b7c99fc0f3fdb0b4aa0b7b915b79520d56ed43d1d5956ff71e884e5f3341557a9ae29ea72f343456deedb6ef79b0a4c475cef6236492de295e505b72bdad

  • SSDEEP

    12288:B4dlopbvJCAijfHcGYE6KWzOZncIh6zEK54Vnbb6KhEtfXl9lXIfYUgWQbm:ByupLnijfDY/K1cIYJcnbb6KhEtfXl9e

Score
10/10
quasaroffice04persistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

sosomelaine.ddns.net:4782

Mutex

5aa8a922-9ddd-48c5-a7bc-b940d8e859d7

Attributes
  • encryption_key

    27CFE7B11F37194DB24000D229CAEB3622E7CFCA

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      3951a3346bf64f1a04c36e9c82da3a7e_JaffaCakes118

    • Size

      750KB

    • MD5

      3951a3346bf64f1a04c36e9c82da3a7e

    • SHA1

      bc66506f01a1433ef1b8775967e37e471a8cbf4a

    • SHA256

      812f2eb0ddd697fb459b8d5995315862bf1de986fc678bdb07acf91020a158a7

    • SHA512

      2b76b7c99fc0f3fdb0b4aa0b7b915b79520d56ed43d1d5956ff71e884e5f3341557a9ae29ea72f343456deedb6ef79b0a4c475cef6236492de295e505b72bdad

    • SSDEEP

      12288:B4dlopbvJCAijfHcGYE6KWzOZncIh6zEK54Vnbb6KhEtfXl9lXIfYUgWQbm:ByupLnijfDY/K1cIYJcnbb6KhEtfXl9e

    Score
    10/10
    quasaroffice04persistencespywaretrojan

    • Modifies WinLogon for persistence

      persistence

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks