Analysis

  • max time kernel
    5s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 14:56

General

  • Target

    3d0e5cf99a69ea347ce8760882c31a97411305e3d903efd0326a9836ae6808d9N.exe

  • Size

    2.0MB

  • MD5

    45703af5a5e2fbb769a367deb5461940

  • SHA1

    672273ec0100591bc033f1e01f4b69ea9f354ae1

  • SHA256

    3d0e5cf99a69ea347ce8760882c31a97411305e3d903efd0326a9836ae6808d9

  • SHA512

    ff00570ee73038137fada410fe0726e3d9afb344eefb3180fc17c5b2a1f35c9210b871c03572d12f9b3f8c7b0a75aac86ef6385455ec67b71639c248f38983b5

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYi:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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\3d0e5cf99a69ea347ce8760882c31a97411305e3d903efd0326a9836ae6808d9N.exe
    "C:\Users\Admin\AppData\Local\Temp\3d0e5cf99a69ea347ce8760882c31a97411305e3d903efd0326a9836ae6808d9N.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:4668
    • 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:2176
      • 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 2176 -s 552
          3⤵
          • Program crash
          PID:4876
      • 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:3684
        • 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:2696
        • 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:1648
          • 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:4024
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KwpsIUznMcJU.bat" "
            4⤵
              PID:456
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1592
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4884
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4916
                    • 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:1976
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Ls6jCEoFJcNC.bat" "
                      6⤵
                        PID:2532
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4532
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2376
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4296
                              • 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:1852
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 2264
                            6⤵
                            • Program crash
                            PID:2436
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 936
                        4⤵
                        • Program crash
                        PID:4304
                  • C:\Users\Admin\AppData\Local\Temp\3d0e5cf99a69ea347ce8760882c31a97411305e3d903efd0326a9836ae6808d9N.exe
                    "C:\Users\Admin\AppData\Local\Temp\3d0e5cf99a69ea347ce8760882c31a97411305e3d903efd0326a9836ae6808d9N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2456
                  • 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:1492
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 2176 -ip 2176
                  1⤵
                    PID:2952
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2076
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4932
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2756
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 520
                              3⤵
                              • Program crash
                              PID:5060
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:644
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:1800
                              • 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:3504
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4932 -ip 4932
                              1⤵
                                PID:4028
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1648 -ip 1648
                                1⤵
                                  PID:2448
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4916 -ip 4916
                                  1⤵
                                    PID:2508
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:2304
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4188

                                      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\KwpsIUznMcJU.bat

                                        Filesize

                                        208B

                                        MD5

                                        5d304ddec01eb351a6e94c7a720e0d5c

                                        SHA1

                                        5c7d9c71a5c18f798ced70b3f10f28b1baf0989f

                                        SHA256

                                        bafa2637909f3f470ea66234a9304f0db7a976c8273cdf650f07c81329cacefb

                                        SHA512

                                        1f75cde3b1d75864b77e3ca8722f961775139ba267c72d01cdc8a8e133b451d6327c8f3a73e356cfa0cdef5941f64ea56be4348bb86fe8be3b54fff407f0b32f

                                      • C:\Users\Admin\AppData\Local\Temp\Ls6jCEoFJcNC.bat

                                        Filesize

                                        208B

                                        MD5

                                        88a7940988771382d28c7e27dd6d6734

                                        SHA1

                                        c753c2f31fbbfda0c16bd65865a4770a8a41b642

                                        SHA256

                                        261c9a1dc77e236c0df336b6899c9c16425422462bc34e7ca8302b3e77dbe76f

                                        SHA512

                                        02a700a51c6ad600fcdc82b306f211ac2186ed0c32476ab1441f2ac5ba54ea2a605293de845068270736e3bd97e3217efe13d569db953ac368a981e77d58d1a5

                                      • 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\10-02-2024

                                        Filesize

                                        224B

                                        MD5

                                        ac5bc79a6479906934d4bfaacee4e43c

                                        SHA1

                                        fb779847b92bee9869bf378c7420547a4232a050

                                        SHA256

                                        09574a5ef70b6d30b90acd3d1dbcd671ae4bdd55b525d39f3747fad54af81b00

                                        SHA512

                                        a1a514f285b167d2ffab3d323dd9deb960741f195f54e6e925ee62c0b3de6d20a98cfa56b3c10e840afa39923c37cf5a5e27042b0b6657db128412643999c71a

                                      • C:\Users\Admin\AppData\Roaming\Logs\10-02-2024

                                        Filesize

                                        224B

                                        MD5

                                        31fa8cc1396a90d8f9ff2b3628d4a533

                                        SHA1

                                        c0456895c0ea092172463fa3221e1b3ac1db0d3b

                                        SHA256

                                        48bd8fac0209ee93223066cb0d0201d97e7f2e400041ecac208fb0d1d2bb17e7

                                        SHA512

                                        bca31ab28702c7bc18eb75166b6c4db902d6b39cab7c996b341b8d658104da219b298d05e60087d401a296a8db2240c9dc378e1261122f21990ddc5b0a4f3719

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        15f0f72ae59ac4c10398565d6de3be4b

                                        SHA1

                                        dde4766857cd3bd8db78936be3b19143a19fbe5c

                                        SHA256

                                        fc4980ff213f226b5b16cb7fdc95452fee29309af7e5c44e5c0d1701a34f353b

                                        SHA512

                                        ad8a9018ec9d14886f479e4f174402ad6e8c9506725da52145ebea2678320ae69e9157fc3a659ae943f25aabc68c200dba8dcb2467dc46f7cb971725cfbd3b0d

                                      • memory/1648-45-0x0000000006D30000-0x0000000006D3A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/1800-73-0x0000000000B40000-0x0000000000B60000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1800-67-0x0000000000B40000-0x0000000000B60000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2456-28-0x00000000002F0000-0x0000000000310000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2456-20-0x00000000002F0000-0x0000000000310000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3684-29-0x0000000072CDE000-0x0000000072CDF000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/3684-37-0x0000000005F60000-0x0000000005F9C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/3684-36-0x0000000005A20000-0x0000000005A32000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/3684-35-0x0000000004DE0000-0x0000000004E46000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/3684-34-0x0000000004D40000-0x0000000004DD2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/3684-33-0x0000000005250000-0x00000000057F4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/3684-32-0x00000000003E0000-0x000000000043E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/4668-19-0x0000000003DD0000-0x0000000003DD1000-memory.dmp

                                        Filesize

                                        4KB