Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-03-2024 15:17

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    2c452681aaf7e08b26eec0c3e5778bd2

  • SHA1

    f9a3d4ad1b623f2f52ff60a51c35f5a6817c12f2

  • SHA256

    acaa51b406aa9cef4c6ac4d6d57b91b0dd2d07a9f6333b69e742796a367ff010

  • SHA512

    c321ff90d512b067ea2c617a07224b6756092318ef3d3175d0c1a00eaa7b9a0cc6976314e00fce4ebec9877d8c4ca8ade23d51e003d3f28317702c57b0541384

  • SSDEEP

    49152:evBt62XlaSFNWPjljiFa2RoUYI31LBrTMfxdoGdalTHHB72eh2NT:evr62XlaSFNWPjljiFXRoUYI35BrCq

Score
10/10
quasartestspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

test

C2

192.168.1.42:4782

Mutex

95ad66d9-3637-453f-943d-33d2a2c49feb

Attributes
  • encryption_key

    3A52ADE42ED9473E5578959627082144C8887BFE

  • install_name

    winreset.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Discord

  • subdirectory

    Boot

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1676

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1676-0-0x00000000013A0000-0x00000000016C4000-memory.dmp
    Filesize

    3.1MB

    Download
  • memory/1676-1-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp
    Filesize

    9.9MB

    Download
  • memory/1676-2-0x0000000001310000-0x0000000001390000-memory.dmp
    Filesize

    512KB

    Download
  • memory/1676-3-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp
    Filesize

    9.9MB

    Download
  • memory/1676-4-0x0000000001310000-0x0000000001390000-memory.dmp
    Filesize

    512KB

    Download