Analysis

  • max time kernel
    6s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/09/2024, 23:33

General

  • Target
    8e5be93ce185afcf93fee851ec86fcb26c8117630b26e594b354b00559fad48e.exe
  • Size 2.0MB
  • Sample240926-3kbv3stenm
  • SHA256 8e5be93ce185afcf93fee851ec86fcb26c8117630b26e594b354b00559fad48e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • azorult

C2
  • http://0x21.in:8000/_az/

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

Signatures

  • Azorult

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

  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 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 2 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

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

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

  • Program crash 4 IoCs
  • 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 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 7 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e5be93ce185afcf93fee851ec86fcb26c8117630b26e594b354b00559fad48e.exe
    "C:\Users\Admin\AppData\Local\Temp\8e5be93ce185afcf93fee851ec86fcb26c8117630b26e594b354b00559fad48e.exe"
    1⤵
    • Quasar RAT
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3360
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3368
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1168
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3368 -s 548
          3⤵
          • Program crash
          PID:2056
      • 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
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4420
        • 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⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4004
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1244
          • 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⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:5076
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Kzmrd1Vv01cX.bat" "
            4⤵
              PID:3044
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1160
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3048
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3052
                    • 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:2568
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AENjaZTrbS1n.bat" "
                      6⤵
                        PID:4504
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1660
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3468
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:3752
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 2204
                            6⤵
                            • Program crash
                            PID:2400
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1244 -s 1980
                        4⤵
                        • Program crash
                        PID:1340
                  • C:\Users\Admin\AppData\Local\Temp\8e5be93ce185afcf93fee851ec86fcb26c8117630b26e594b354b00559fad48e.exe
                    "C:\Users\Admin\AppData\Local\Temp\8e5be93ce185afcf93fee851ec86fcb26c8117630b26e594b354b00559fad48e.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2016
                  • 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:3948
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3368 -ip 3368
                  1⤵
                    PID:3836
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1244 -ip 1244
                    1⤵
                      PID:1584
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:1816
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3032
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4856
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 520
                                3⤵
                                • Program crash
                                PID:3368
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:2076
                                • 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:4956
                                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                  3⤵
                                    PID:964
                                    • 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:4864
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:1052
                                  • 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⤵
                                    • Scheduled Task/Job: Scheduled Task
                                    PID:2260
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3032 -ip 3032
                                  1⤵
                                    PID:4636
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3052 -ip 3052
                                    1⤵
                                      PID:1532
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2676

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            windef.exe.log

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log
                                            • Size 1KB
                                            • SHA256 f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928
                                            • MD5 SHA1 SHA512

                                            AENjaZTrbS1n.bat

                                            • Path C:\Users\Admin\AppData\Local\Temp\AENjaZTrbS1n.bat
                                            • Size 208B
                                            • SHA256 b6c5cc7f29a570a7c812f54c447b4f87b52e591cd52b0c982cee7c8e63d50d05
                                            • MD5 SHA1 SHA512

                                            Kzmrd1Vv01cX.bat

                                            • Path C:\Users\Admin\AppData\Local\Temp\Kzmrd1Vv01cX.bat
                                            • Size 208B
                                            • SHA256 c73d6a2e051da798270468bb2308185fa9857257830f211b7854e84f561b9f77
                                            • MD5 SHA1 SHA512

                                            vnc.exe

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

                                            windef.exe

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

                                            09-26-2024

                                            • Path C:\Users\Admin\AppData\Roaming\Logs\09-26-2024
                                            • Size 224B
                                            • SHA256 1fa76b0cde4875051bb9d3c0bff0046f8d6fb1e8ea97662dffadd8b824e85f3e
                                            • MD5 SHA1 SHA512

                                            09-26-2024

                                            • Path C:\Users\Admin\AppData\Roaming\Logs\09-26-2024
                                            • Size 224B
                                            • SHA256 3a986a3bbcc555d83bb8ea15681459912766c908e757cc055947dcd16295bd3f
                                            • MD5 SHA1 SHA512

                                            SystemPropertiesPerformance.exe

                                            • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                            • Size 2.0MB
                                            • SHA256 985709771eef3f7626d696e1b6e68a45d5c12c6a32b0ba61b3342ff41ff5fdf1
                                            • MD5 SHA1 SHA512 SSDEEP

                                            memory/1244-45-0x00000000061D0000-0x00000000061DA000-memory.dmp

                                            memory/2016-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                            memory/2016-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                            memory/3360-19-0x0000000003830000-0x0000000003831000-memory.dmp

                                            memory/4420-36-0x0000000005360000-0x0000000005372000-memory.dmp

                                            memory/4420-37-0x0000000006050000-0x000000000608C000-memory.dmp

                                            memory/4420-35-0x0000000004F50000-0x0000000004FB6000-memory.dmp

                                            memory/4420-34-0x0000000004EB0000-0x0000000004F42000-memory.dmp

                                            memory/4420-33-0x00000000053C0000-0x0000000005964000-memory.dmp

                                            memory/4420-30-0x00000000004D0000-0x000000000052E000-memory.dmp

                                            memory/4420-29-0x00000000733FE000-0x00000000733FF000-memory.dmp