Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2024 19:21

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    020dc8ccb6466b74c9cf6d9a77317408

  • SHA1

    3fb9693a25184909d7b3a94b1ae9b19773036548

  • SHA256

    93356f3f1b066d2b45a054295bceb5afeed63fba94f516b9b3720aa1e39b10b5

  • SHA512

    3cbf43e0440f3d63389b906a18f4f754897cf9e78670b1ec0b8f9b6af5fcfd9487fcd845722a85ee3a655d73d1e2ab955361e2e305b540a9247270e167ab3911

  • SSDEEP

    49152:DvWI22SsaNYfdPBldt698dBcjHWkxNESEPk/izLoGd7THHB72eh2NT:Dv722SsaNYfdPBldt6+dBcjHhx+/

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.34:4782

Mutex

47a11b0b-cc98-4565-9fca-ea6758fba9f4

Attributes
  • encryption_key

    6133A1B51099269501FDCC7384A5C668533FBD02

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar family
    quasar
  • Quasar payload 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⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2448

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2448-0-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2448-1-0x00000000003F0000-0x0000000000714000-memory.dmp

    Filesize

    3.1MB

    Download

  • memory/2448-2-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2448-3-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2448-4-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

    Filesize

    9.9MB

    Download