Analysis

  • max time kernel
    842s
  • max time network
    846s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 28 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⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2872
    • 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:2936
    • 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:2824
      • 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:2236
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /delete /tn "svchost" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2924
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\Ea2kOO9EtSmk.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:664
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2316
        • 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:1820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Ea2kOO9EtSmk.bat

    Filesize

    263B

    MD5

    58c6d99c46ce62c1367d568d6be5efbf

    SHA1

    2ba76694fbb5df64b00623d3627659d285623438

    SHA256

    66559c2e00eadae1e1d0f26438e674f7668a5c800b155209047618eff83824f1

    SHA512

    360ab8ac967c72a6a27c92e9e15da3b5d035a78fbbac082412e510e65ce6b626137f2716305a528b26fd5f6bbca782bbccc7b9fb4115545d7f08c081132adb69

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

    Filesize

    224B

    MD5

    57c98219c2ad9b10cbaceaf601ca08b0

    SHA1

    3bb74d1970d0bb377036eafcef2ffa6b0c71362d

    SHA256

    b1735f406a7beb48dfee57eafae027d66963949359ac2509cc458f05d871e17f

    SHA512

    8a6378ebcfd305c334e618c28dca3ce8e481c2923910a38bd51f83903271ad2449d7278e2acce9ffa1787e4baf36eab00bb8c56ea4119d7e3db169ba46200f5b

  • memory/2824-10-0x0000000000180000-0x00000000001DE000-memory.dmp

    Filesize

    376KB

  • memory/2824-11-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2824-12-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2824-15-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2824-25-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2872-0-0x00000000740DE000-0x00000000740DF000-memory.dmp

    Filesize

    4KB

  • memory/2872-1-0x0000000000DD0000-0x0000000000E2E000-memory.dmp

    Filesize

    376KB

  • memory/2872-2-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2872-13-0x00000000740D0000-0x00000000747BE000-memory.dmp

    Filesize

    6.9MB