Analysis

  • max time kernel
    432s
  • max time network
    1154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    13-09-2024 18:56

General

  • Target

    AuroraALPHABUILD.0-6 - Copy (4).exe

  • Size

    231.7MB

  • MD5

    3cda647a8948f3ac4df14abf6f1d62c1

  • SHA1

    f4da28914a3938e7de76546bcf911f539672459a

  • SHA256

    c905d2c1b9df641f12daab74948cef579aa92b6f07c36f97ed70146b615411c1

  • SHA512

    77c0cd078ab2d2765237c3cc68a4872a81db653f1ad6a42122b786b27c7d48842577a65e88ad61e549e13b5be0df51e25b5f026089a19833e9da71f8c30c0cdd

  • SSDEEP

    6144:0MNHXf500MU8zfjEm0beDmcCl/QOqNgJyCqv7cc:Rd505jwmZmcgSNgJyrv7cc

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

gimp1

C2

193.42.33.210:4444

gimpdns.ddns.net:4444

Mutex

QSR_MUTEX_XwuUSTCgYhmnf6vJ1L

Attributes
  • encryption_key

    lRzFKjYQKUKzh6RyUYYQ

  • install_name

    svchost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svchost

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Executes dropped EXE 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.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy (4).exe
    "C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy (4).exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy (4).exe" /rl HIGHEST /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:952
    • C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:216
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4840
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /delete /tn "svchost" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1652
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Kv3iXlLNw1gF.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4716
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2312
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Kv3iXlLNw1gF.bat

    Filesize

    263B

    MD5

    343118d5f01b7ae7c977285732ad221e

    SHA1

    d606fbf3c04939f6e202be375ef2733325a87e04

    SHA256

    8547eade236bc0d220f3f3ec38a35bbab9257514f080d3287834d40f38a4b1f8

    SHA512

    d83083f9810e24472fc7e9a3f6062c513522f27b28c970208bf5202845575057977f92bd5adf7d8cb302ec16988d546881ebcc8669e4fab843b07224f9ef6418

  • C:\Users\Admin\AppData\Roaming\Logs\09-13-~1

    Filesize

    224B

    MD5

    9c0ff54af6f1aa87d44692f8ed9a32e1

    SHA1

    efc7370c04e11f2d334d21bd503526a45107209d

    SHA256

    3f3c7c195d5850162dfa2082cfed12087a867363f7613af86f810cd0ed314ca7

    SHA512

    e7991cbe9597c299d17b3d3c13fe0c9164060884c3c536b1cbefe75df31fe112be349bce39c9f00397c0f0a55d80f1697e09562bc207b33fa2448a3979ed7615

  • memory/216-14-0x00000000750B0000-0x0000000075861000-memory.dmp

    Filesize

    7.7MB

  • memory/216-24-0x00000000750B0000-0x0000000075861000-memory.dmp

    Filesize

    7.7MB

  • memory/216-18-0x00000000750B0000-0x0000000075861000-memory.dmp

    Filesize

    7.7MB

  • memory/216-17-0x0000000006890000-0x000000000689A000-memory.dmp

    Filesize

    40KB

  • memory/1216-6-0x0000000005BE0000-0x0000000005BF2000-memory.dmp

    Filesize

    72KB

  • memory/1216-7-0x0000000006110000-0x000000000614C000-memory.dmp

    Filesize

    240KB

  • memory/1216-0-0x00000000750BE000-0x00000000750BF000-memory.dmp

    Filesize

    4KB

  • memory/1216-15-0x00000000750B0000-0x0000000075861000-memory.dmp

    Filesize

    7.7MB

  • memory/1216-5-0x0000000004F60000-0x0000000004FC6000-memory.dmp

    Filesize

    408KB

  • memory/1216-4-0x00000000750B0000-0x0000000075861000-memory.dmp

    Filesize

    7.7MB

  • memory/1216-3-0x0000000004EC0000-0x0000000004F52000-memory.dmp

    Filesize

    584KB

  • memory/1216-2-0x0000000005390000-0x0000000005936000-memory.dmp

    Filesize

    5.6MB

  • memory/1216-1-0x0000000000390000-0x00000000003EE000-memory.dmp

    Filesize

    376KB