Analysis

  • max time kernel
    4s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-08-2024 00:07

General

  • Target

    226008a446b7f04a7cf6bf68ce0265a0N.exe

  • Size

    2.0MB

  • MD5

    226008a446b7f04a7cf6bf68ce0265a0

  • SHA1

    4fdc4c7dfe3bea6ad2707694f28f248e1d65f0ac

  • SHA256

    aa501154efd05517846a317a8178ed2c16448f57118a4b6d3860ba6488358040

  • SHA512

    b67687eecf7dea764ec260f43a1f225081f6d7295092e317a4605799317f8406da45c74bf2176314f3e7a6415d07e9fe44b2ee09a4639f5c680888380ab86421

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYb:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YJ

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 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\226008a446b7f04a7cf6bf68ce0265a0N.exe
    "C:\Users\Admin\AppData\Local\Temp\226008a446b7f04a7cf6bf68ce0265a0N.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:1660
    • 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:3568
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 548
          3⤵
          • Program crash
          PID:1496
      • 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:4972
        • 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:3100
        • 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:4024
          • 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:3612
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AjF84SDSdoSH.bat" "
            4⤵
              PID:4360
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4152
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2736
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2180
                    • 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:2440
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ZwbjqZAmfZsx.bat" "
                      6⤵
                        PID:4000
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4064
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4176
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 1972
                          6⤵
                          • Program crash
                          PID:1344
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1976
                      4⤵
                      • Program crash
                      PID:2700
                • C:\Users\Admin\AppData\Local\Temp\226008a446b7f04a7cf6bf68ce0265a0N.exe
                  "C:\Users\Admin\AppData\Local\Temp\226008a446b7f04a7cf6bf68ce0265a0N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3864
                • 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:3088
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3568 -ip 3568
                1⤵
                  PID:1184
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4024 -ip 4024
                  1⤵
                    PID:4332
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3076
                      • 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:3772
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 520
                              3⤵
                              • Program crash
                              PID:1408
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3568
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:1476
                              • 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:4076
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4816 -ip 4816
                              1⤵
                                PID:1204
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2180 -ip 2180
                                1⤵
                                  PID:3656
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:1184
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4768

                                    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\AjF84SDSdoSH.bat

                                      Filesize

                                      208B

                                      MD5

                                      ac3c722a92b1265bcec57c58ee4627b8

                                      SHA1

                                      329d3c6853d6cfbea7be62f0adaf65195610f961

                                      SHA256

                                      0d0849744f5fc0e511c1aa41bf60184eb8f04f38a949e2d903fdcd3ac3f0efc7

                                      SHA512

                                      6ff78801daaa5b0cd65386a49629bd865155170c48ded95fda171a849457fc7991f2a2113138d29d45c9d883b22109d9922a92467dbdb0bdd7f96b973c94c91d

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

                                      Filesize

                                      208B

                                      MD5

                                      1ba5b18e5dc6a09b2f434176604d5e00

                                      SHA1

                                      479c241baec7fe602de4b6cb2cd6bb1a4f415b34

                                      SHA256

                                      64aa439c35868604c75b16ae73f8aff4897cab659ee8e6d1121c34dcd45e954e

                                      SHA512

                                      bd5f3518d5c6cf821e7b8fc8baa737c0a82cd772f63a630ba6a8eaf002c49ec0a483b2c12fa543a237b977ff14e1ca94270cfa68491e1cd5acba7f6fba1b652f

                                    • 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\08-23-2024

                                      Filesize

                                      224B

                                      MD5

                                      a264c34e5eeaef739c46f0e8fc638dcc

                                      SHA1

                                      31975f172bbc9a707c53af891a16d79b14aca0de

                                      SHA256

                                      f3813a556f580927edc0c80bb6f3135b78ac70bdaca0ef4a39d90b1a0329dfaf

                                      SHA512

                                      0ec65a79e16496e9279ab370142dba0743bde44a279a9e881c7bdcf17a6ba68f505c940cbcbed3b9563a51ff869fdb060c5c498da3c59913637abe39e79014cb

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      5fd5c7ead39071b3e7f1e43f146db92d

                                      SHA1

                                      e63cb823bf9990b81debfd83458f2d80717934c8

                                      SHA256

                                      72d80e2ec6aa9a9069f45a7b0f25361945e424615574f7c6a8842c5841df83dc

                                      SHA512

                                      a529c0b03823d1bad7144d8d3d20732540cf666a9b70d78871350afda9bf60fcbe097f0199ef02acd6ff11b65b2432792c5125f712dea48f97ce02a71d62dcda

                                    • memory/1476-76-0x0000000000440000-0x0000000000460000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1476-70-0x0000000000440000-0x0000000000460000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1660-19-0x0000000004550000-0x0000000004551000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3864-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3864-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4024-44-0x0000000006550000-0x000000000655A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/4972-36-0x0000000006AD0000-0x0000000006B0C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4972-35-0x0000000006590000-0x00000000065A2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4972-34-0x0000000005940000-0x00000000059A6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4972-33-0x00000000058A0000-0x0000000005932000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4972-32-0x0000000005D30000-0x00000000062D4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4972-31-0x0000000000E20000-0x0000000000E7E000-memory.dmp

                                      Filesize

                                      376KB