Analysis

  • max time kernel
    402s
  • max time network
    888s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13-09-2024 18:56

General

  • Target

    AuroraALPHABUILD.0-6 - Copy.exe

  • Size

    97.0MB

  • MD5

    2b36c87327d49e2509816b80b90deb84

  • SHA1

    9bd6b6edd4be18c825ea0c22210b7751849afcf3

  • SHA256

    e809d65888127e63049885ba4fb12bcfba0ae6726e13197eb38975b73cd6019c

  • SHA512

    f8ed673f8b67e0233ca6d390a244e7dfce1771e70979f231e140e060d8c124de69db77e487fb54baacadca19dd0a51be9a3eff8b1f4dfb36359c1435ab93eee2

  • 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.exe
    "C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\AuroraALPHABUILD.0-6 - Copy.exe" /rl HIGHEST /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:192
    • 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:4392
      • 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:2828
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /delete /tn "svchost" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2052
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AzzcglTst3Lk.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3056
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2380
        • 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:3548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AzzcglTst3Lk.bat

    Filesize

    263B

    MD5

    c9af1a21dbb89f5ffa0e1f85dd640777

    SHA1

    1602da8938c3990be5a5db1ac1fd3e47875e3a13

    SHA256

    791e981f11ca607af99c0aa63246a7c26782f4ebfb10344e0f17812933963e2d

    SHA512

    04f0e6d890b2713422e8857eb992e052050fb8198d5a68a4b103ca97574b4872c305b81907fb28f6d248f24d95c0bad233fa79176a5e6da35a91dfbe93ce9a17

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

    Filesize

    224B

    MD5

    d0cd9a5bec989109efc059a7e477149c

    SHA1

    b70076fe02e0bcb9d41f500e8560bb4cbacd7143

    SHA256

    eb4b6512bd40b8f2b1fed7544fc280549b3064506c99ee62018a17271f3de061

    SHA512

    46dc2ccd5dd3ecdd950b7620ba66367a26f37e94063d59df60b2c0007c3172ce3b1f760799095dd7df15fce8328f808634468145cfed7469c52f47ca449b8f80

  • memory/1416-1-0x0000000000AB0000-0x0000000000B0E000-memory.dmp

    Filesize

    376KB

  • memory/1416-2-0x0000000005910000-0x0000000005E0E000-memory.dmp

    Filesize

    5.0MB

  • memory/1416-3-0x0000000005410000-0x00000000054A2000-memory.dmp

    Filesize

    584KB

  • memory/1416-4-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/1416-5-0x0000000005380000-0x00000000053E6000-memory.dmp

    Filesize

    408KB

  • memory/1416-6-0x00000000058D0000-0x00000000058E2000-memory.dmp

    Filesize

    72KB

  • memory/1416-7-0x00000000063C0000-0x00000000063FE000-memory.dmp

    Filesize

    248KB

  • memory/1416-0-0x0000000073F7E000-0x0000000073F7F000-memory.dmp

    Filesize

    4KB

  • memory/1416-15-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/4392-14-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/4392-19-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/4392-18-0x0000000007040000-0x000000000704A000-memory.dmp

    Filesize

    40KB

  • memory/4392-25-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/4392-16-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB