Analysis

  • max time kernel
    96s
  • max time network
    133s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    07-11-2024 01:44

General

  • Target

    VaporWaveX2.1/VaporWave2-1.exe

  • Size

    72.5MB

  • MD5

    af85b5d9c237ea75d4a307d5157c847f

  • SHA1

    84ad14e5d89bd85f0ef1bb5f3269c0d6929c6a53

  • SHA256

    3e7fe3f421b50a884cc30ac892a739e895f4243ed554183deebc7415593ee2d2

  • SHA512

    bf2e7414f1e00d69aaf3dab61a938c3051f429b712d8dcccd3f7a7a32226d42dc66477c1fac7cbb67a326dd05b33de7afbc176ce4280405ac69e2e8dcbdabca3

  • SSDEEP

    6144:UI6bPXhLApfpo8CL1g1N1ZflpUwGbeCqgHcFi9vNnoGjlhjl7k4:lmhAp5CL1g1N1ZfXxpi9vhHl1l7k4

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

general1

C2

servicehos.zapto.org:4444

Mutex

QSR_MUTEX_ksxWAP4ziOqMlreofU

Attributes
  • encryption_key

    i9HUVkY4QNExDOHIMtIX

  • 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 family
  • Quasar payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\VaporWaveX2.1\VaporWave2-1.exe
    "C:\Users\Admin\AppData\Local\Temp\VaporWaveX2.1\VaporWave2-1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\VaporWaveX2.1\VaporWave2-1.exe" /rl HIGHEST /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4232
    • C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\svchost.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:708
      • 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:2712
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /delete /tn "svchost" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:528
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NjfD75xl0042.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1976
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2140
        • 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:3848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\NjfD75xl0042.bat

    Filesize

    263B

    MD5

    7281589139d4c26374729433c05927c9

    SHA1

    0d69e49efd9747f6a2cdf25bb28c87830d0d612f

    SHA256

    9208ae9e6015ba3badd1ef2bb72a6f33ffad7e86ea720e086fd21c163b51f230

    SHA512

    a5f3e9914f4b037c4a7f44ce7a21c4ace0c6f79f2d29562774f250a1d497edea15c8bad9a2b790b9ede249fbe1fa69426255cf4e8391d1d61bc0665bad2513c1

  • C:\Users\Admin\AppData\Roaming\Logs\11-07-~1

    Filesize

    224B

    MD5

    8527246eb723fcf3009175235581db28

    SHA1

    58af6e6b6ac23a9fae27244f123becc8dc0b6923

    SHA256

    2d27d0bcf097d3c0c629590f52582511627fdc81ef5d272f73897a97200c3e06

    SHA512

    68308fe93be7da5e6a35183a143dfc410762014d6d92263cc1e5041f4acfbe214f1204ef03ecf456db494ecd40ef4f0080120fddae06e31a6b077a9c00b862b8

  • memory/708-10-0x00000000749D0000-0x0000000075181000-memory.dmp

    Filesize

    7.7MB

  • memory/708-23-0x00000000749D0000-0x0000000075181000-memory.dmp

    Filesize

    7.7MB

  • memory/708-14-0x00000000749D0000-0x0000000075181000-memory.dmp

    Filesize

    7.7MB

  • memory/708-13-0x00000000071F0000-0x00000000071FA000-memory.dmp

    Filesize

    40KB

  • memory/2456-6-0x0000000005BB0000-0x0000000005BC2000-memory.dmp

    Filesize

    72KB

  • memory/2456-7-0x0000000006130000-0x000000000616C000-memory.dmp

    Filesize

    240KB

  • memory/2456-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/2456-11-0x00000000749D0000-0x0000000075181000-memory.dmp

    Filesize

    7.7MB

  • memory/2456-5-0x0000000004E70000-0x0000000004ED6000-memory.dmp

    Filesize

    408KB

  • memory/2456-4-0x00000000749D0000-0x0000000075181000-memory.dmp

    Filesize

    7.7MB

  • memory/2456-3-0x0000000004EF0000-0x0000000004F82000-memory.dmp

    Filesize

    584KB

  • memory/2456-2-0x00000000054A0000-0x0000000005A46000-memory.dmp

    Filesize

    5.6MB

  • memory/2456-1-0x0000000000470000-0x00000000004CE000-memory.dmp

    Filesize

    376KB