Analysis

  • max time kernel
    1793s
  • max time network
    1799s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-07-2024 08:20

General

  • Target

    NL Brute 2/tối uu VPS ram cpu.exe

  • Size

    502KB

  • MD5

    f46feedbc1681f295b9dcb82286f59dc

  • SHA1

    88884e4d37c285c2104291f1f870363e20c66169

  • SHA256

    d2a79b6bc781b6faa62cc315cb103d60a2ef4d2d37325690da6ca6d61af84a64

  • SHA512

    541ff3f0a018752b53810a64b3c3ec920fb1caa8b33e67870d0b481020012f4f59b48b79505a063633b2885adb1f107078ba28a41431011b7347a3fc12e458d4

  • SSDEEP

    6144:JTEgdc0YvXAGbgiIN2RSB0WxCn4mQ44AkBcEqOb8FTySQUtPcTR3q:JTEgdfYnbgZl0da6pOGPcdq

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

128.199.64.220:4782

Mutex

a6aa1ddd-3810-492e-8728-facd9d5ede65

Attributes
  • encryption_key

    CB9F9A0F270F5BD4211B4E21054ED956F7A81814

  • 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.

  • Quasar payload 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NL Brute 2\tối uu VPS ram cpu.exe
    "C:\Users\Admin\AppData\Local\Temp\NL Brute 2\tối uu VPS ram cpu.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3316

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3316-0-0x00007FFC5F5C3000-0x00007FFC5F5C5000-memory.dmp

    Filesize

    8KB

  • memory/3316-1-0x0000000000CF0000-0x0000000000D74000-memory.dmp

    Filesize

    528KB

  • memory/3316-2-0x00007FFC5F5C0000-0x00007FFC60081000-memory.dmp

    Filesize

    10.8MB

  • memory/3316-3-0x000000001C470000-0x000000001C4C0000-memory.dmp

    Filesize

    320KB

  • memory/3316-4-0x000000001C580000-0x000000001C632000-memory.dmp

    Filesize

    712KB

  • memory/3316-5-0x00007FFC5F5C3000-0x00007FFC5F5C5000-memory.dmp

    Filesize

    8KB

  • memory/3316-6-0x00007FFC5F5C0000-0x00007FFC60081000-memory.dmp

    Filesize

    10.8MB