Analysis

  • max time kernel
    101s
  • max time network
    111s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    17-12-2024 00:07

General

  • Target

    e449e67559b963094612cee05ae3038edb44771a3ed0139fc675b8b34528dc66N.exe

  • Size

    348KB

  • MD5

    bdb7c04dc8eed14ec4f1b9a6017d8610

  • SHA1

    7144bf748917c7415573adf584cd81c435ebdeb6

  • SHA256

    e449e67559b963094612cee05ae3038edb44771a3ed0139fc675b8b34528dc66

  • SHA512

    2849e5300ce3e4f1ce12ea8824d9b0be2bcd6cf7d3b393901e66f1542d9acdf3e09d1d76a887dca6008bd5d07f3223b6f675d548af0a5b246fa40df68cae277e

  • SSDEEP

    6144:mzNHXf500MsYYQiLTVdbw35O7f6v/D2mGipQZb/cVXS:od50LOuOmvr2pipQZb/cVXS

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

192.168.252.1:4782

Mutex

QSR_MUTEX_nAO3ZxsttzfVnn6gik

Attributes
  • encryption_key

    XoQ4ARQwU8sc1owNPsxw

  • 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 family
  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e449e67559b963094612cee05ae3038edb44771a3ed0139fc675b8b34528dc66N.exe
    "C:\Users\Admin\AppData\Local\Temp\e449e67559b963094612cee05ae3038edb44771a3ed0139fc675b8b34528dc66N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2536-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

    Filesize

    4KB

  • memory/2536-1-0x0000000000250000-0x00000000002AE000-memory.dmp

    Filesize

    376KB

  • memory/2536-2-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB

  • memory/2536-3-0x00000000741AE000-0x00000000741AF000-memory.dmp

    Filesize

    4KB

  • memory/2536-4-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB