Analysis

  • max time kernel
    5s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 16:47

General

  • Target

    5da92a7e992972b201c7d071b9d3ad18.exe

  • Size

    2.0MB

  • MD5

    5da92a7e992972b201c7d071b9d3ad18

  • SHA1

    eefb7e26131372cbcb8725bc7249c2ca0a405b06

  • SHA256

    7ac51bbdd053d153348a920222a6cd5f65cf051fa24c12ad64827e2ab6133cc0

  • SHA512

    73ba85d8039e34a6fab3cc1e93f85a397c533a1e054f295fdabd1a994d625cb7599f40992b3e65d51fa9b643cbf1407ff5b9a4d7946f598f290ef45f0204b2a2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY4:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi

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\5da92a7e992972b201c7d071b9d3ad18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da92a7e992972b201c7d071b9d3ad18.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:3908
    • 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:4936
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 548
          3⤵
          • Program crash
          PID:3956
      • 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:1376
        • 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:2660
        • 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:4008
          • 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:4208
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\uF1bx87V7UB1.bat" "
            4⤵
              PID:5100
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:940
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3724
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4960
                    • 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:540
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WjSZWeF0hm3c.bat" "
                      6⤵
                        PID:776
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3344
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2460
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4416
                              • 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:4508
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 2120
                            6⤵
                            • Program crash
                            PID:516
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4008 -s 2244
                        4⤵
                        • Program crash
                        PID:2584
                  • C:\Users\Admin\AppData\Local\Temp\5da92a7e992972b201c7d071b9d3ad18.exe
                    "C:\Users\Admin\AppData\Local\Temp\5da92a7e992972b201c7d071b9d3ad18.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1068
                  • 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:5092
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4936 -ip 4936
                  1⤵
                    PID:3144
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:1360
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4816
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2144
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 528
                              3⤵
                              • Program crash
                              PID:1516
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:4884
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2416
                              • 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:3160
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4816 -ip 4816
                              1⤵
                                PID:1008
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4008 -ip 4008
                                1⤵
                                  PID:1824
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4960 -ip 4960
                                  1⤵
                                    PID:2056
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:5064
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2260

                                      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\WjSZWeF0hm3c.bat

                                        Filesize

                                        208B

                                        MD5

                                        b7301e132fad669f7723eb84c0701b33

                                        SHA1

                                        f98c47a379d7e47222a0f70852446b2b055e9b19

                                        SHA256

                                        8195bdd0d9d9e53427ed9ff953606f25e090c8f27b486faa467cf78e063364b2

                                        SHA512

                                        ea019f835c2b6fe259588efffb0f759edc4760ffbe9f615251b97e88b16dfbaebfa527682cb317668794726e116a6069949f49abfec26fa7db033dc991b9cd70

                                      • C:\Users\Admin\AppData\Local\Temp\uF1bx87V7UB1.bat

                                        Filesize

                                        208B

                                        MD5

                                        6925e74d606a8355af3a5f738667774a

                                        SHA1

                                        968dc4204c4dc18e3cc66ebb61be2239c122b624

                                        SHA256

                                        0ec1ace7bec0ae219daa97207d4ec91f60e615dd90528a1b8d8716e726473ee0

                                        SHA512

                                        e800563059dd8b5c670f23688af56dd8f5c3992a822527b4b851905490fcd294d797c9c0da145e3eab2ca67fea047e312ce9293930db9eb8a9f26ed1c89c7d7f

                                      • 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\09-16-2024

                                        Filesize

                                        224B

                                        MD5

                                        bf850887d298478b9a90ed88f1b85d8f

                                        SHA1

                                        dd50aa24cbedca63f3c1ec876f50e92325b2b80f

                                        SHA256

                                        b6b50ee54f073dd85400e26d9e65cb52b9ade3ea26f2a381067b3d65d36c9d17

                                        SHA512

                                        4a7192921a99d8c09fccc25a55771fe56a1120e2ca715bdd14e5d20b496b23835ac78f7c5b303d1dbfe1b82a24c362667f17d570438eb44cf3f035ec4dd91e2e

                                      • C:\Users\Admin\AppData\Roaming\Logs\09-16-2024

                                        Filesize

                                        224B

                                        MD5

                                        5223d581aa20856c62bf74aad0adf100

                                        SHA1

                                        f1701e2366ea965160e12cc13a87e5ab480a9e9b

                                        SHA256

                                        5395c75815fd8ef6b141d368bca69531010f645958720460a599078a6292e7f6

                                        SHA512

                                        190aafa1cf678fdbb9091c4b85559d45fedc6ef7c9ad837502abbb73909036e6a7f780cf69cd0db6d3c84d059077ec0dcea937fdf3d3ddbc042d34aff9fd07af

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        3e2cb11ccdc0c9544cbbf225f9de6601

                                        SHA1

                                        b0a4046068cddb99ea79097290b90b7543002dbe

                                        SHA256

                                        e33c9aaed3ff47782879d5deb133ba788dd089192b48339f5b419fc0601dd8a9

                                        SHA512

                                        92d28621512cebca2a3a9c26f81c6bafccb5339de61157ac77a11302a08b1f5902f53f532b7cbe94e2f41fd2a1f1d93f9d7f81b3a006ee83e58cca2923b1437d

                                      • memory/1068-20-0x0000000000EA0000-0x0000000000EC0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1068-28-0x0000000000EA0000-0x0000000000EC0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1376-36-0x0000000006030000-0x0000000006042000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/1376-37-0x0000000006570000-0x00000000065AC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/1376-35-0x00000000053B0000-0x0000000005416000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/1376-34-0x0000000005310000-0x00000000053A2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/1376-33-0x0000000005820000-0x0000000005DC4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/1376-30-0x00000000009F0000-0x0000000000A4E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/1376-29-0x0000000072E5E000-0x0000000072E5F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2416-67-0x00000000012B0000-0x00000000012D0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2416-73-0x00000000012B0000-0x00000000012D0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3908-19-0x0000000001E80000-0x0000000001E81000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4008-45-0x0000000005F00000-0x0000000005F0A000-memory.dmp

                                        Filesize

                                        40KB