Analysis

  • max time kernel
    394s
  • max time network
    1120s
  • 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 (3).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 (3).exe
    "C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy (3).exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy (3).exe" /rl HIGHEST /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2300
    • 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:768
      • 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:1144
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /delete /tn "svchost" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4192
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TIwg4sWUOUJW.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:128
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3956
        • 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:912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\TIwg4sWUOUJW.bat

    Filesize

    263B

    MD5

    09779d12222a688e54dd7e58d3cc4a70

    SHA1

    97f26b5d1f2b0f07270a074117d89a83766476ab

    SHA256

    8ca76079a4a1d3b4948b3c867ebbab7c391daa397fdce2636972816823e34875

    SHA512

    853496df2af2a4b2d5217887311e4c92e29e605130ea84a5e98e56974ca2c997a09ab0a2a24bbd97a253510ac9e4d229d0b247c5dbef5a635c39ba047a3ca468

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

    Filesize

    224B

    MD5

    ff3aebaa695a7d1e1c8fe7819d35a375

    SHA1

    b98f4456b8876767233f9e75904df5de4ee8d976

    SHA256

    53a085613dae0e66f32752d14d8ec582f4cfc7c62989f9e74a6d944378d920dd

    SHA512

    bfb4c3cff259d3f0cb112ffc186cecb934ea0684b4951e0ba64fff4d6ed34fb92965b8ca3f8bdafc57f72fd409c69048668c31dfc0c3e7870b0cb7affc3499ed

  • memory/768-14-0x00000000748B0000-0x0000000075061000-memory.dmp

    Filesize

    7.7MB

  • memory/768-24-0x00000000748B0000-0x0000000075061000-memory.dmp

    Filesize

    7.7MB

  • memory/768-18-0x00000000748B0000-0x0000000075061000-memory.dmp

    Filesize

    7.7MB

  • memory/768-17-0x0000000006DA0000-0x0000000006DAA000-memory.dmp

    Filesize

    40KB

  • memory/2764-3-0x00000000052E0000-0x0000000005372000-memory.dmp

    Filesize

    584KB

  • memory/2764-7-0x0000000006490000-0x00000000064CC000-memory.dmp

    Filesize

    240KB

  • memory/2764-15-0x00000000748B0000-0x0000000075061000-memory.dmp

    Filesize

    7.7MB

  • memory/2764-6-0x00000000056A0000-0x00000000056B2000-memory.dmp

    Filesize

    72KB

  • memory/2764-5-0x0000000005230000-0x0000000005296000-memory.dmp

    Filesize

    408KB

  • memory/2764-4-0x00000000748B0000-0x0000000075061000-memory.dmp

    Filesize

    7.7MB

  • memory/2764-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

    Filesize

    4KB

  • memory/2764-2-0x00000000056D0000-0x0000000005C76000-memory.dmp

    Filesize

    5.6MB

  • memory/2764-1-0x0000000000710000-0x000000000076E000-memory.dmp

    Filesize

    376KB