Analysis

  • max time kernel
    5s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-10-2024 18:37

General

  • Target

    ee053d3856b81a03ab4c2981bf526ab1c2107368792d0e68ea565bec5d2758a4N.exe

  • Size

    2.0MB

  • MD5

    c7e19de57b0ffdf49f72d73bc2d42740

  • SHA1

    204a01b3956392779343e615228bfa7124806208

  • SHA256

    ee053d3856b81a03ab4c2981bf526ab1c2107368792d0e68ea565bec5d2758a4

  • SHA512

    dbea489c9e6fb4140b3c88b84d1ca26c1eabaacca454eac6c009b643416b29f3b9559c6fed8d3518b7929d93b35a53af0fdd6cb2bce04281a9fed2a498978bec

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY7:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yl

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 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\ee053d3856b81a03ab4c2981bf526ab1c2107368792d0e68ea565bec5d2758a4N.exe
    "C:\Users\Admin\AppData\Local\Temp\ee053d3856b81a03ab4c2981bf526ab1c2107368792d0e68ea565bec5d2758a4N.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:3652
    • 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:4320
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4320 -s 544
          3⤵
          • Program crash
          PID:4252
      • 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:3932
        • 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:3004
        • 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:1624
          • 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:1256
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7a0zdsRqPCB0.bat" "
            4⤵
              PID:5024
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1092
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4944
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2400
                    • 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:4804
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\eoy40UjoSYzU.bat" "
                      6⤵
                        PID:2816
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1528
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3132
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2884
                              • 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:4784
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 2240
                            6⤵
                            • Program crash
                            PID:3372
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 2260
                        4⤵
                        • Program crash
                        PID:2180
                  • C:\Users\Admin\AppData\Local\Temp\ee053d3856b81a03ab4c2981bf526ab1c2107368792d0e68ea565bec5d2758a4N.exe
                    "C:\Users\Admin\AppData\Local\Temp\ee053d3856b81a03ab4c2981bf526ab1c2107368792d0e68ea565bec5d2758a4N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4300
                  • 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:2292
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4320 -ip 4320
                  1⤵
                    PID:4856
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1624 -ip 1624
                    1⤵
                      PID:2000
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4512
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3164
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2732
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 520
                                3⤵
                                • Program crash
                                PID:3608
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3120
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4500
                                • 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:3636
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3164 -ip 3164
                                1⤵
                                  PID:1260
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 2400 -ip 2400
                                  1⤵
                                    PID:1572
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1624
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1096
                                      • C:\Windows\system32\sihost.exe
                                        sihost.exe
                                        1⤵
                                          PID:2176

                                        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\7a0zdsRqPCB0.bat

                                          Filesize

                                          208B

                                          MD5

                                          af0c66bcf229d74c1b2870c942ec0078

                                          SHA1

                                          0128de1e9ed8b1ca53860549eeb0bf463fad3213

                                          SHA256

                                          7d62d7a5f420e729ba11cb34c5b5a0bcb7c4d56a69793768c13279aeec2b2c58

                                          SHA512

                                          c54552440b0c56c3db0b408f7013d5a30e825d5c708102639eabda132a46e76b2837ed5bae05ae5df2577be503d3a5a6efe5f48c24525c9d4dbb3841917202b3

                                        • C:\Users\Admin\AppData\Local\Temp\eoy40UjoSYzU.bat

                                          Filesize

                                          208B

                                          MD5

                                          d26e31077bb02ddb6b30f8a21f4bb245

                                          SHA1

                                          6fcdf6f78ad19499fede1df7e94e8c425968afc6

                                          SHA256

                                          630dbb5f6a987670504d3de59c7ebbbb3f23d9fce8be714c4683a41bde2d90fc

                                          SHA512

                                          a099f458932629668d755eb2caf24a6262a46290664257d7185f9c792a1a415c6782f8995435207000e1407a25710d38f6e36985a1b110e16285e58ba55e1429

                                        • 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\10-05-2024

                                          Filesize

                                          224B

                                          MD5

                                          e21d2105548cd2d35183bc7422e46962

                                          SHA1

                                          35d9c0eabd4ce000ebe7711035d85c942fef6535

                                          SHA256

                                          b98c0a70e77ca27a0014ce6baf8053e53c3896d7775416ce02eb65694f89a583

                                          SHA512

                                          781d5fc62896fd4183d14d29f80f26dc474781e70d8f1212992f6e17d645918cb58a3772d8e625d0478a3c055b2ec1d4537d79485b3b39ea440cbab8b7b24c2a

                                        • C:\Users\Admin\AppData\Roaming\Logs\10-05-2024

                                          Filesize

                                          224B

                                          MD5

                                          22671b76fc85bcb9e0b0d46ff93ed82a

                                          SHA1

                                          1bcbf30a148fdd1355f6db4dd0f9fabe6983f679

                                          SHA256

                                          1be6755b5bcef409e6d11c58ea1bf385131485868824ad3c765edcb1b8e4cae3

                                          SHA512

                                          2391700978d4a1b267ca9da215597933f18deddee20df1924b9967807e5d3c5c52ccc40360ca5972695a9381f803a1a69e725e7462a6f1deba1392fed3bf3f68

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          8fed4110c457d25e771591c450e0149a

                                          SHA1

                                          a163cb3820d1525cb943cb801548fd23f5303931

                                          SHA256

                                          c5a2283367d545aa59d7c90e02a4184c127c36c3304de9de005b2871d6d84c8c

                                          SHA512

                                          c939b0d3fd35f1bdb39fb60742bb422923c6ddcdd2b23a2bf074e84311e35c5dc46b5b208f367e68464c7e3133a068aef2de948091d34269f9d61377c86e645a

                                        • memory/1624-44-0x0000000006760000-0x000000000676A000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/3652-19-0x00000000037E0000-0x00000000037E1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3932-31-0x00000000009F0000-0x0000000000A4E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/3932-36-0x0000000006560000-0x000000000659C000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/3932-35-0x0000000006020000-0x0000000006032000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3932-34-0x0000000005300000-0x0000000005366000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/3932-33-0x0000000005380000-0x0000000005412000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/3932-32-0x0000000005930000-0x0000000005ED4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/4300-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4300-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4500-73-0x0000000000690000-0x00000000006B0000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4500-79-0x0000000000690000-0x00000000006B0000-memory.dmp

                                          Filesize

                                          128KB