Analysis

  • max time kernel
    5s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2024 06:18

General

  • Target

    92c87ac73a625c5ec82d24d940ca7a7fd5ce88dfd0736ac2524781e7bf62aae3N.exe

  • Size

    2.0MB

  • MD5

    894dd80e874236c77db3b77d186c7310

  • SHA1

    22d052513bf1ed40d396638719d1eed153722ac7

  • SHA256

    92c87ac73a625c5ec82d24d940ca7a7fd5ce88dfd0736ac2524781e7bf62aae3

  • SHA512

    364061e2e8fe0c576a300c88e52b5ad9a693af9423b0b72656785922c748be7b1055c2cfd9f5a7ee39b46653249708cdc558b4d2e86ff15f6603ff820af55423

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYo:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YS

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 4 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 2 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 6 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\92c87ac73a625c5ec82d24d940ca7a7fd5ce88dfd0736ac2524781e7bf62aae3N.exe
    "C:\Users\Admin\AppData\Local\Temp\92c87ac73a625c5ec82d24d940ca7a7fd5ce88dfd0736ac2524781e7bf62aae3N.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:1008
    • 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:1220
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2580
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1220 -s 548
          3⤵
          • Program crash
          PID:4856
      • 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:4868
        • 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:956
        • 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:5032
          • 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:3356
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\rrShrtu7Scky.bat" "
            4⤵
              PID:3336
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3288
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4968
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1948
                    • 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:4788
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1nQFFfskW8Ep.bat" "
                      6⤵
                        PID:4552
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3160
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1244
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4588
                              • 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
                                8⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:1056
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 2200
                            6⤵
                            • Program crash
                            PID:1504
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 2252
                        4⤵
                        • Program crash
                        PID:3784
                  • C:\Users\Admin\AppData\Local\Temp\92c87ac73a625c5ec82d24d940ca7a7fd5ce88dfd0736ac2524781e7bf62aae3N.exe
                    "C:\Users\Admin\AppData\Local\Temp\92c87ac73a625c5ec82d24d940ca7a7fd5ce88dfd0736ac2524781e7bf62aae3N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4312
                  • 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:2324
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1220 -ip 1220
                  1⤵
                    PID:2344
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5032 -ip 5032
                    1⤵
                      PID:1080
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4992
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:1464
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:1580
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 1464 -s 520
                                3⤵
                                • Program crash
                                PID:2040
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4428
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:1220
                                • 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:4564
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1464 -ip 1464
                                1⤵
                                  PID:208
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1948 -ip 1948
                                  1⤵
                                    PID:376
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3656
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:512

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log

                                        Filesize

                                        1KB

                                        MD5

                                        10eab9c2684febb5327b6976f2047587

                                        SHA1

                                        a12ed54146a7f5c4c580416aecb899549712449e

                                        SHA256

                                        f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                        SHA512

                                        7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                      • C:\Users\Admin\AppData\Local\Temp\1nQFFfskW8Ep.bat

                                        Filesize

                                        208B

                                        MD5

                                        ed3cee196a2752d050cec5990bbe8cc3

                                        SHA1

                                        3493e06ccf35842fd2629e5c75db9bf37b0c47f4

                                        SHA256

                                        4dc3b5e30fe51656b6a3891e83ee41072010f79caa5edca7e507f5fb7f648384

                                        SHA512

                                        67567be94bc272dd9202fda99d35c862d58f5ae32affe86ccd9e17b604be554edcce580df2171ad39c35e4db3fa6466adba4214bedd5d5a56ad93ba83cc824cf

                                      • C:\Users\Admin\AppData\Local\Temp\rrShrtu7Scky.bat

                                        Filesize

                                        208B

                                        MD5

                                        a06f6bbfe311fd640691341817092863

                                        SHA1

                                        4cae000ca631011c85152e54aa77ac7da6dc94ea

                                        SHA256

                                        526af65ef93b1ad08b9f3263f0b8a099bd49e57bfd2a7a4d2132f719170b3d97

                                        SHA512

                                        98b5b2a03861c462a8d03bc01719c5f3cda88dea67910777e9de43f4d854900181d579efd1e52e98c5df9d5916686ccb23f15b19a26101c9c0efa66820572d12

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

                                        Filesize

                                        405KB

                                        MD5

                                        b8ba87ee4c3fc085a2fed0d839aadce1

                                        SHA1

                                        b3a2e3256406330e8b1779199bb2b9865122d766

                                        SHA256

                                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                        SHA512

                                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                                        Filesize

                                        349KB

                                        MD5

                                        b4a202e03d4135484d0e730173abcc72

                                        SHA1

                                        01b30014545ea526c15a60931d676f9392ea0c70

                                        SHA256

                                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                        SHA512

                                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                      • C:\Users\Admin\AppData\Roaming\Logs\10-06-2024

                                        Filesize

                                        224B

                                        MD5

                                        bb0748f435acd7f34b8155f5fcd80c9c

                                        SHA1

                                        c58d52db23f05bc4dd6811c76b28151be230c6b7

                                        SHA256

                                        46d7da2bb76b65601c8c66a242d9de318d5c79da6e3421a0b644c5c65c63ff28

                                        SHA512

                                        7e533b5834714b92141920d97b428ea8312a4127d6cefd1ebe067b36fa7562b8082b928cb42c1ddd62e90659397400acd9c4bd8b9d7b25d4c0e6b0f5984d2f29

                                      • C:\Users\Admin\AppData\Roaming\Logs\10-06-2024

                                        Filesize

                                        224B

                                        MD5

                                        a6c317a7ce9f1069ecd05f5803c95894

                                        SHA1

                                        f9321f89e4d4b763cdd31d4a57e734f034e9fa82

                                        SHA256

                                        0eecdfd9c92fb4b2f6fb0343187cba8a90f8b5139482e0e4e4d4d692612d4160

                                        SHA512

                                        dc1e70b9baac420743c99aa8a5b5399f54bd50df916953ad7c36206c9f6b119ae52d77e1eb8c667e3935c5d81358b2c0e81180def65f2817ee569e6c002d79d6

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        d4bac8d33bdaf45491a8c5b1e4b1701c

                                        SHA1

                                        6ef661c114cfacda9a342c1261e2866cde0e75be

                                        SHA256

                                        8f8e4d08bee5f3a09837c8bc6e017e5d311b62af21103ba9dd7bc134dd52f8e4

                                        SHA512

                                        94be55a83772c011f76d868fe4b9be5a100b7ef162736c58a5d692b37872834ad85ca2b65767259567e474a246235652839be57fd9d99287a0bd7890d23bcd08

                                      • memory/1008-88-0x0000000000890000-0x0000000000A9A000-memory.dmp

                                        Filesize

                                        2.0MB

                                      • memory/1008-18-0x0000000001830000-0x0000000001831000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4312-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4312-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4868-36-0x00000000065F0000-0x000000000662C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/4868-35-0x00000000060B0000-0x00000000060C2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/4868-34-0x0000000005480000-0x00000000054E6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4868-33-0x00000000053D0000-0x0000000005462000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4868-32-0x00000000058E0000-0x0000000005E84000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4868-29-0x0000000000A80000-0x0000000000ADE000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/5032-44-0x0000000006140000-0x000000000614A000-memory.dmp

                                        Filesize

                                        40KB