Analysis

  • max time kernel
    4s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 00:07

General

  • Target

    87a44ad7ca862cfc9725becf5eba60c379b91a6ad9c0270be33008d83b00e938.exe

  • Size

    2.0MB

  • MD5

    52518532adb9036fe7c7c6b7f4480a9b

  • SHA1

    e07641ec49321afbe3b18fe8e33334cf98ac6860

  • SHA256

    87a44ad7ca862cfc9725becf5eba60c379b91a6ad9c0270be33008d83b00e938

  • SHA512

    53e9c4fc4d2dda3e8db25004250de62926ffaaf5213348f46de8113c099a610ed65d488c3c9f10b5b1a0337a835ce430e5ded1736a92b6403d8d48f9f269b73d

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY7:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yx

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.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 5 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 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.

  • 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 3 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 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\87a44ad7ca862cfc9725becf5eba60c379b91a6ad9c0270be33008d83b00e938.exe
    "C:\Users\Admin\AppData\Local\Temp\87a44ad7ca862cfc9725becf5eba60c379b91a6ad9c0270be33008d83b00e938.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:2332
    • 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:2492
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2828
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2668
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2736
        • 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:2712
        • 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:2020
          • 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:2936
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\FMIWSrupzW5d.bat" "
            4⤵
              PID:2464
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3024
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:576
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1740
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 1488
                  4⤵
                  • Program crash
                  PID:2028
            • C:\Users\Admin\AppData\Local\Temp\87a44ad7ca862cfc9725becf5eba60c379b91a6ad9c0270be33008d83b00e938.exe
              "C:\Users\Admin\AppData\Local\Temp\87a44ad7ca862cfc9725becf5eba60c379b91a6ad9c0270be33008d83b00e938.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2644
            • 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:2620
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {8B9BE7C7-F1D1-4B4F-B621-07835281EF06} S-1-5-21-3294248377-1418901787-4083263181-1000:FMEDFXFE\Admin:Interactive:[1]
            1⤵
              PID:1292
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:1448
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:1640
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2228
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 160
                          4⤵
                          • Program crash
                          PID:792
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2264
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2476
                          • 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
                            3⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:2444

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\FMIWSrupzW5d.bat

                        Filesize

                        208B

                        MD5

                        3f4947594b5fb634c934fe60bbedb1c6

                        SHA1

                        e85b098fac3b775f89099039caa2232505b4d435

                        SHA256

                        37a3b20cc9213aa871037c3b7cb1a622415dde6d30a0347746e564647eb61971

                        SHA512

                        131e1e285e032e269dcd0d4c629aad28e8d6c866872369ed2920c8e45b55a9cf4be339d52eb6f51156bcf84944bba19a8d467b08f8e28976b8560e0885d74558

                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\NH6IOYUH.txt

                        Filesize

                        211B

                        MD5

                        cbb5e4a7b6be9c12548e0c249d7cfefa

                        SHA1

                        9d99cf28a8da61d023f1810b4375eb795099b930

                        SHA256

                        5c69f351748e338d4d14497c2a454460252ef0ee5f666278df1bb4c47d3bd3cf

                        SHA512

                        e71d1ee1661b136535deb47103b3bce190233b8b3032234b40710946488be2faafa6320ae70409b0c271ee6eecf112b3694dfc4b489a63dd12f346fe8d3e7635

                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                        Filesize

                        2.0MB

                        MD5

                        e5c99801224cd6a878e2f9f84fbc8670

                        SHA1

                        d3a9138cd2b282d995d785d1990580efcd5bc2d3

                        SHA256

                        ecd7b681a698e75961a768763af8d720b6cd114596e9a4382aab25a80495cba0

                        SHA512

                        05bf51822a440e2e7447f0d17a402971de1d4a5764762ff6c82f3408d202039c2760e0e2a6225c20fed96d842a3cf77584d6034d3456bbacea6b44b3ffc1d597

                      • \Users\Admin\AppData\Local\Temp\windef.exe

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/2020-60-0x0000000000340000-0x000000000039E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2264-95-0x0000000001250000-0x00000000012AE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2332-43-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2332-102-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2476-90-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2644-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2644-32-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2644-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2644-42-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2736-46-0x00000000003B0000-0x000000000040E000-memory.dmp

                        Filesize

                        376KB