Analysis

  • max time kernel
    5s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/08/2024, 20:28

General

  • Target
    6a41ccf9673f3a80a5ed0a16d7963380N.exe
  • Size 2.0MB
  • Sample240826-y845batglb
  • SHA256 af862c3bf344c477c5d0a1775f184db3221c7030077790d8fe14a072069ea162
  • 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\6a41ccf9673f3a80a5ed0a16d7963380N.exe
    "C:\Users\Admin\AppData\Local\Temp\6a41ccf9673f3a80a5ed0a16d7963380N.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:2232
    • 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:4944
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 544
          3⤵
          • Program crash
          PID:3728
      • 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:2776
        • 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:3704
        • 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:3352
          • 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:2024
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\oCd1jTini3q5.bat" "
            4⤵
              PID:1140
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4840
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2764
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:5104
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 2276
                  4⤵
                  • Program crash
                  PID:1912
            • C:\Users\Admin\AppData\Local\Temp\6a41ccf9673f3a80a5ed0a16d7963380N.exe
              "C:\Users\Admin\AppData\Local\Temp\6a41ccf9673f3a80a5ed0a16d7963380N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:32
            • 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:4996
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4944 -ip 4944
            1⤵
              PID:2108
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3352 -ip 3352
              1⤵
                PID:1196
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3664
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:3028
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:2876
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 520
                          3⤵
                          • Program crash
                          PID:1932
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:1384
                          • 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:3204
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:3304
                              • 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:756
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8LwR0RXrtD8H.bat" "
                                4⤵
                                  PID:2132
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 65001
                                    5⤵
                                      PID:1132
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      5⤵
                                      • System Network Configuration Discovery: Internet Connection Discovery
                                      • Runs ping.exe
                                      PID:1628
                                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                      5⤵
                                        PID:936
                                        • 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:3200
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2268
                                      4⤵
                                      • Program crash
                                      PID:3548
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:1436
                                  • 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:4268
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3028 -ip 3028
                                  1⤵
                                    PID:2240
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3304 -ip 3304
                                    1⤵
                                      PID:4940
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1116
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:5104

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              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

                                              winsock.exe.log

                                              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log
                                              • Size 701B
                                              • SHA256 d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92
                                              • MD5 SHA1 SHA512

                                              8LwR0RXrtD8H.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\8LwR0RXrtD8H.bat
                                              • Size 208B
                                              • SHA256 f9f35aa6e32dbf80b43fd1826c7ebc7986679ad5e5bba0f353ecd1f9340b8e01
                                              • MD5 SHA1 SHA512

                                              oCd1jTini3q5.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\oCd1jTini3q5.bat
                                              • Size 208B
                                              • SHA256 37e4abc72dcaec91f937b8925129b98722e101df5a2b6c35f6884beca825d21e
                                              • 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

                                              08-26-2024

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\08-26-2024
                                              • Size 224B
                                              • SHA256 ef91a2cb5b3613e692ee4d1c01943cc43a524b10d7f320825a98a16c7aa87228
                                              • MD5 SHA1 SHA512

                                              08-26-2024

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\08-26-2024
                                              • Size 224B
                                              • SHA256 19eb5989085f53e2da59793447a4b3a4429dfd09dcc38a065de890b35f10a6f2
                                              • MD5 SHA1 SHA512

                                              SystemPropertiesPerformance.exe

                                              • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                              • Size 2.0MB
                                              • SHA256 6e485dfc1cc54595d4e84ec15a4f281f2be33db94e7551a0cbaafc4c58da375f
                                              • MD5 SHA1 SHA512 SSDEEP

                                              memory/32-28-0x00000000008B0000-0x00000000008D0000-memory.dmp

                                              memory/32-20-0x00000000008B0000-0x00000000008D0000-memory.dmp

                                              memory/1436-71-0x00000000002E0000-0x0000000000300000-memory.dmp

                                              memory/1436-77-0x00000000002E0000-0x0000000000300000-memory.dmp

                                              memory/2232-19-0x0000000003B00000-0x0000000003B01000-memory.dmp

                                              memory/2776-29-0x00000000731EE000-0x00000000731EF000-memory.dmp

                                              memory/2776-37-0x0000000005E90000-0x0000000005ECC000-memory.dmp

                                              memory/2776-36-0x0000000005950000-0x0000000005962000-memory.dmp

                                              memory/2776-35-0x0000000004D60000-0x0000000004DC6000-memory.dmp

                                              memory/2776-34-0x0000000004C50000-0x0000000004CE2000-memory.dmp

                                              memory/2776-33-0x0000000005160000-0x0000000005704000-memory.dmp

                                              memory/2776-30-0x00000000001C0000-0x000000000021E000-memory.dmp

                                              memory/3352-45-0x0000000006240000-0x000000000624A000-memory.dmp