Analysis

  • max time kernel
    5s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2024 22:48

General

  • Target

    4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe

  • Size

    2.0MB

  • MD5

    8edce36c57a299022131f82ef1f41c2b

  • SHA1

    2f06abb6f036468307463a5df702d9d918b9adaa

  • SHA256

    4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0

  • SHA512

    8a3de5990501e84ec62d46dddafec11187d4cb679ae57b14178823744acb5dd413c8c4e1c5944ec61702dfd28a3c8af94096bbf6bd4a6dc1239e8f05bebc1af7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYr:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yd

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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 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 5 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\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe
    "C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe"
    1⤵
    • 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:1104
    • 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:3588
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1220
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 552
          3⤵
          • Program crash
          PID:100
      • 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:3144
        • 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:4760
        • 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:2656
          • 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:1572
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MXZeoCZu8RKM.bat" "
            4⤵
              PID:2404
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2408
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:976
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3768
                    • 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:2296
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 2248
                  4⤵
                  • Program crash
                  PID:904
            • C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe
              "C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:3164
            • 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:2864
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3588 -ip 3588
            1⤵
              PID:2712
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2656 -ip 2656
              1⤵
                PID:2176
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:1952
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:1048
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:2800
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 520
                          3⤵
                          • Program crash
                          PID:1404
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:232
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:1784
                          • 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:5056
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1048 -ip 1048
                          1⤵
                            PID:4432
                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                            1⤵
                              PID:4412
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:4892

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

                              Loading Replay Monitor...

                              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\MXZeoCZu8RKM.bat

                                Filesize

                                208B

                                MD5

                                ddc00874ab32ba74e7964b330242ea4a

                                SHA1

                                f0c76ee924587e1dae34dcd37049b371316afd54

                                SHA256

                                58b8eaaa834baed29b194e6030a5f084f915e636eeaff836651138b73948fe31

                                SHA512

                                f527f59ecdadabc46985138592f1b92aea34166bd33b88ed767e0de011cc19d1b8fbdbcfa08a77730388628f8534ce46810606a04a6620946d68335cd917c812

                              • 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\11-07-2024

                                Filesize

                                224B

                                MD5

                                305af67008b8bc1c16250e6dc3970e5e

                                SHA1

                                694dcfac8d1575b92b9c8d6bd091c51ed53a4c93

                                SHA256

                                00ad687fa7f00a05f18026eb0f96940169bd79afac55024102122af37fd748e8

                                SHA512

                                0cae5fba6786d65e2d0a296a48d230948689cfd0c42a7ccb5ef2a9e32f3058508f7391289f85b9f3b66a587a8df4a8d71df1bd77e00775f00d3914d496803da8

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

                                Filesize

                                2.0MB

                                MD5

                                ef74408d2694736748b2103ba8637abe

                                SHA1

                                f18882aaca0833c394256e0f7b05bc1470a4ba06

                                SHA256

                                a68324a5a74f9d4aa850d50f7e72afcd037385a555c0c37abdc170036dcb3c62

                                SHA512

                                be1afcbc9356c00bef520cc5493e156b2f135beb6bac3a304065090d52f274d93816fccf2b1b5937064c356a54ad02ba9b5242914092c0c017d49d7d2698af72

                              • memory/1104-19-0x0000000003B50000-0x0000000003B51000-memory.dmp

                                Filesize

                                4KB

                              • memory/1784-80-0x0000000000330000-0x0000000000350000-memory.dmp

                                Filesize

                                128KB

                              • memory/1784-74-0x0000000000330000-0x0000000000350000-memory.dmp

                                Filesize

                                128KB

                              • memory/2656-45-0x0000000006180000-0x000000000618A000-memory.dmp

                                Filesize

                                40KB

                              • memory/3144-34-0x0000000005160000-0x00000000051F2000-memory.dmp

                                Filesize

                                584KB

                              • memory/3144-37-0x0000000006480000-0x00000000064BC000-memory.dmp

                                Filesize

                                240KB

                              • memory/3144-36-0x0000000005F40000-0x0000000005F52000-memory.dmp

                                Filesize

                                72KB

                              • memory/3144-35-0x0000000005200000-0x0000000005266000-memory.dmp

                                Filesize

                                408KB

                              • memory/3144-33-0x0000000005710000-0x0000000005CB4000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/3144-32-0x00000000006B0000-0x000000000070E000-memory.dmp

                                Filesize

                                376KB

                              • memory/3144-29-0x000000007327E000-0x000000007327F000-memory.dmp

                                Filesize

                                4KB

                              • memory/3164-28-0x00000000001E0000-0x0000000000200000-memory.dmp

                                Filesize

                                128KB

                              • memory/3164-20-0x00000000001E0000-0x0000000000200000-memory.dmp

                                Filesize

                                128KB