Analysis

  • max time kernel
    5s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 10:11

General

  • Target

    451d0f9d77c31129f271d062425abb50N.exe

  • Size

    2.0MB

  • MD5

    451d0f9d77c31129f271d062425abb50

  • SHA1

    71750713e968cffc9c53743dde99dfa909389933

  • SHA256

    8cb956bcc3afb6feb498b80112700b4cd124b5de71d90d87cbf6eebd0d371da5

  • SHA512

    54001281e47c5722c8470cbabdb1963cb0426e16a43510eea993e755b8ebbadb2224f27068105787c099074902298033a38e2a72bdfbbb4e5d7a85578de2427f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYd:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YH

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\451d0f9d77c31129f271d062425abb50N.exe
    "C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.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:2176
    • 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:976
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3016
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 548
          3⤵
          • Program crash
          PID:448
      • 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:1312
        • 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:64
        • 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:1964
          • 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:2180
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\dGDU4P1V3Tb3.bat" "
            4⤵
              PID:3708
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3240
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:5008
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3088
                    • 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:1852
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XLHgGWOIjjam.bat" "
                      6⤵
                        PID:2340
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4144
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2520
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:972
                              • 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:900
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 1968
                            6⤵
                            • Program crash
                            PID:4024
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 1980
                        4⤵
                        • Program crash
                        PID:2464
                  • C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.exe
                    "C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:876
                  • 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:4156
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 976 -ip 976
                  1⤵
                    PID:5084
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1964 -ip 1964
                    1⤵
                      PID:1064
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:2872
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3104
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2996
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3104 -s 520
                                3⤵
                                • Program crash
                                PID:4280
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1368
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:1556
                                • 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:3848
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3104 -ip 3104
                                1⤵
                                  PID:4384
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3088 -ip 3088
                                  1⤵
                                    PID:5048
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1420
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4140

                                      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\XLHgGWOIjjam.bat

                                        Filesize

                                        208B

                                        MD5

                                        e9fe95b61e0956de424f004e7a347b16

                                        SHA1

                                        b7cd574cfc6cbf82427ed7d2d450cbf83c00ff89

                                        SHA256

                                        9a4dc04976d70de3ebbfa3d44d565fc24347cb1942cb2a20b50318b8688a003f

                                        SHA512

                                        b8c0d03f1a74e86b6c9612a86256f06b55c7e9d879fa8a644fc62ef4f8d1640772f51dbbb8f9c8e19c517e404d082cd13521be1a58f165f19f6b9d073968150f

                                      • C:\Users\Admin\AppData\Local\Temp\dGDU4P1V3Tb3.bat

                                        Filesize

                                        208B

                                        MD5

                                        658a4ba37b61f0e3cb3c91a27075a27d

                                        SHA1

                                        607ac41e0065e9186717d78a91c7a441972dffe5

                                        SHA256

                                        2bdc20c820dba3f68ef98f52a920f436ef32a0037454929a9a639781e2cd80ea

                                        SHA512

                                        f24e386787d9b70646e5e6763be5b2dd9c8436bdef2b450554815c13bbe9bfb88aa02648f3fde968be3217d1301d53a85e7ea5da0390d97d5f39f0da15efb1d7

                                      • 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\09-09-2024

                                        Filesize

                                        224B

                                        MD5

                                        eedf0a421ef6c5f6c1963fa725ea7655

                                        SHA1

                                        87e3772f76351ff037630a7e382085db9eb8468a

                                        SHA256

                                        b9b27f71bc7328f7966418be0712f6e96f6414bf48d2aa805b49186887226dc2

                                        SHA512

                                        be0154dcdc5e98f3fe7f811d864affbd9570fba742bed421a054c23722fbee68140643ac2138398be948ab197c6693620338671fbd40e7cf8caa39db33af9e59

                                      • C:\Users\Admin\AppData\Roaming\Logs\09-09-2024

                                        Filesize

                                        224B

                                        MD5

                                        4b2a4e8c2acd7fb2948974b545fd00ca

                                        SHA1

                                        bc7b9ddc463f3c9b1322016761a04d5ca46501b2

                                        SHA256

                                        2e85ba54bb140398013c1021c1ebccf42ca5a52b891143ca5323b12bfe8eab1f

                                        SHA512

                                        a05b5beeb93bc4a62bfdff4b2e197bcae3eda1bcd3de326b2deeae17e8451aca75e825e0be01e3efa7e1282c89866bbb2ed6227c3e4fed0c11a3e8c52fc6f51d

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        fbb59da4ff8e966f46bb6fb888cdc53d

                                        SHA1

                                        4b9f79a20af2fc4f518e6fe36d99823f6be96807

                                        SHA256

                                        1ee638da00ec6fefaf78f2bc2c70a70c3569305d7cfab3040fcc6c82da77a2c0

                                        SHA512

                                        441e7e42a9f2f4a5db7c836f2583a4dc56777212652412f7f7aceaf79245fe807d37ced2cd6c474c6719f26db08a574ec68b6380474493dbe13f72d0a7adb2db

                                      • memory/876-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/876-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1312-29-0x000000007313E000-0x000000007313F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/1312-37-0x0000000005FC0000-0x0000000005FFC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/1312-36-0x0000000005A80000-0x0000000005A92000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/1312-35-0x0000000004E80000-0x0000000004EE6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/1312-34-0x0000000004DE0000-0x0000000004E72000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/1312-33-0x0000000005230000-0x00000000057D4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/1312-30-0x0000000000450000-0x00000000004AE000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/1556-74-0x0000000000D40000-0x0000000000D60000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1556-80-0x0000000000D40000-0x0000000000D60000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1964-45-0x0000000006250000-0x000000000625A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/2176-19-0x00000000014E0000-0x00000000014E1000-memory.dmp

                                        Filesize

                                        4KB