Analysis

  • max time kernel
    2s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26/10/2024, 12:36

General

  • Target
    b1ffe0c923eb0aae30e8c3f7b21d9a80f41555d74008ce3632c7a07c541baa02N.exe
  • Size 2.0MB
  • Sample241026-pterfavgpq
  • SHA256 b1ffe0c923eb0aae30e8c3f7b21d9a80f41555d74008ce3632c7a07c541baa02
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.3.0.0

Botnet
  • EbayProfiles

C2
  • 5.8.88.191:443

  • sockartek.icu:443

Mutex
  • QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Extracted

Family
  • azorult

C2
  • http://0x21.in:8000/_az/

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1ffe0c923eb0aae30e8c3f7b21d9a80f41555d74008ce3632c7a07c541baa02N.exe
    "C:\Users\Admin\AppData\Local\Temp\b1ffe0c923eb0aae30e8c3f7b21d9a80f41555d74008ce3632c7a07c541baa02N.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2828
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2796
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2924
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2988
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1492
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\7pmSAPVuCFuy.bat" "
            4⤵
              PID:1264
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2136
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3064
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1188
                    • C:\Windows\SysWOW64\schtasks.exe
                      "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:2468
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2988 -s 1528
                  4⤵
                  • Program crash
                  PID:368
            • C:\Users\Admin\AppData\Local\Temp\b1ffe0c923eb0aae30e8c3f7b21d9a80f41555d74008ce3632c7a07c541baa02N.exe
              "C:\Users\Admin\AppData\Local\Temp\b1ffe0c923eb0aae30e8c3f7b21d9a80f41555d74008ce3632c7a07c541baa02N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2692
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
              2⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2340
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {C1E94889-4B88-48E9-BD3F-458CB93F93D6} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
            1⤵
              PID:2380
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2368

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    7pmSAPVuCFuy.bat

                    • Path C:\Users\Admin\AppData\Local\Temp\7pmSAPVuCFuy.bat
                    • Size 208B
                    • SHA256 0e208247ce0e75294c00dfc97451e56aa40a2e5eeb64149faa2853eeb6ba8e27
                    • MD5 SHA1 SHA512

                    10-26-2024

                    • Path C:\Users\Admin\AppData\Roaming\Logs\10-26-2024
                    • Size 224B
                    • SHA256 210a37e40af6a513038b98b527082818b2755e7b2dcad80df681c8b072fd5e15
                    • MD5 SHA1 SHA512

                    SystemPropertiesPerformance.exe

                    • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    • Size 2.0MB
                    • SHA256 c0d8b88c49174a20752cb3b3cd32763cd6ecb735dd1c74903d6b17b18a6e3cdf
                    • MD5 SHA1 SHA512 SSDEEP

                    vnc.exe

                    • Path \Users\Admin\AppData\Local\Temp\vnc.exe
                    • Size 405KB
                    • SHA256 4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
                    • MD5 SHA1 SHA512 SSDEEP

                    windef.exe

                    • Path \Users\Admin\AppData\Local\Temp\windef.exe
                    • Size 349KB
                    • SHA256 7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/1188-81-0x0000000000FF0000-0x000000000104E000-memory.dmp

                    memory/2692-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                    memory/2692-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    memory/2692-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                    memory/2692-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                    memory/2796-54-0x0000000000C50000-0x0000000000CAE000-memory.dmp

                    memory/2828-46-0x0000000000020000-0x0000000000021000-memory.dmp

                    memory/2828-53-0x0000000000150000-0x00000000001EC000-memory.dmp

                    memory/2828-49-0x0000000000150000-0x00000000001EC000-memory.dmp

                    memory/2828-48-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                    memory/2880-30-0x0000000000A10000-0x0000000000A11000-memory.dmp

                    memory/2988-64-0x00000000002B0000-0x000000000030E000-memory.dmp