Analysis

  • max time kernel
    5s
  • max time network
    109s
  • 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 20:22

General

  • Target

    a691722fdd483c17e0de0f6376bd7dc0N.exe

  • Size

    2.0MB

  • MD5

    a691722fdd483c17e0de0f6376bd7dc0

  • SHA1

    b1d2a77d3cae763fb8a8637cbab2bc56599ffecf

  • SHA256

    fff4f11dbc7943d89fcfa04aef243e4b214a19615183302d6b619416060502ae

  • SHA512

    79564e3df72bd6cf818466b36dc0b1ac03c81c5c57e5e7a861aa4e37735308015f6558cb5579d6e48fa0636b4b86d8b39146a25c2153511fd07e099db4371aa9

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYy:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YA

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\a691722fdd483c17e0de0f6376bd7dc0N.exe
    "C:\Users\Admin\AppData\Local\Temp\a691722fdd483c17e0de0f6376bd7dc0N.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:1308
    • 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:636
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 548
          3⤵
          • Program crash
          PID:320
      • 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:3948
        • 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:4236
        • 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:2664
          • 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:4552
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\uWBpW6BYDinC.bat" "
            4⤵
              PID:5012
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3636
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2672
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4384
                    • 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:3728
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5Vttn4Vxh8xc.bat" "
                      6⤵
                        PID:2084
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2152
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2828
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4724
                              • 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:1792
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 2216
                            6⤵
                            • Program crash
                            PID:4900
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 2216
                        4⤵
                        • Program crash
                        PID:4308
                  • C:\Users\Admin\AppData\Local\Temp\a691722fdd483c17e0de0f6376bd7dc0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\a691722fdd483c17e0de0f6376bd7dc0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:3008
                  • 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:1396
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 636 -ip 636
                  1⤵
                    PID:1472
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 2664 -ip 2664
                    1⤵
                      PID:1536
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:5076
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3012
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:1184
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 520
                                3⤵
                                • Program crash
                                PID:3312
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:2504
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4792
                                • 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:3124
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3012 -ip 3012
                                1⤵
                                  PID:3788
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4384 -ip 4384
                                  1⤵
                                    PID:1504
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:212
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:468

                                      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\5Vttn4Vxh8xc.bat

                                        Filesize

                                        208B

                                        MD5

                                        2151b65fc9576f66ace9787091d18d64

                                        SHA1

                                        d3317cf0a3f52e7f0f6e951914c9959e263845bc

                                        SHA256

                                        b768d50e1d317b328f6aa34271ca10e98f1ebbb0216ce3d1368ee672a851a0b0

                                        SHA512

                                        5ce5b89983c762c647b10f35603ee3ad38880e93cd3546abbf89b55d0afdcce0766c541e24719bb41e8ba65d8c1269762d33dbffbcc58029b4db094a1b2986ea

                                      • C:\Users\Admin\AppData\Local\Temp\uWBpW6BYDinC.bat

                                        Filesize

                                        208B

                                        MD5

                                        82ae92a7a25200d134339947dbd7dc93

                                        SHA1

                                        1de3cf7630069d58b463497f24880da4d14bb2ff

                                        SHA256

                                        29c923af3e6185f1ad7321a4b15c61157367851cfbececb8b83da779c89738ac

                                        SHA512

                                        935f91871dcf61a456481981f8b38b0526bfc6a470f40f5223891140d7e28e466f8b23748bb846b63e06025d9c0830ac6f632c5cd3303bc3745d2d31233890f3

                                      • 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

                                        ae482ce03bfcc6c02490adc745410bc3

                                        SHA1

                                        da4c18e5ff50b8ef757a449f1bd0098d33a7d9e7

                                        SHA256

                                        41341b7f120ff92a0f6af5e79a815fc70b66a0ec67c555d25948f64b521e961b

                                        SHA512

                                        c1d06b3c2d3bcde6addb692ef33032f6dbacbba43719735386410264dac9dc77e51e24078efbfa4ff207b24caf1b4a82d877535a2995c999dbb8176300db485d

                                      • C:\Users\Admin\AppData\Roaming\Logs\08-23-2024

                                        Filesize

                                        224B

                                        MD5

                                        dd0b47fb4d912df9d5a4d2ff19021be1

                                        SHA1

                                        15a9f3478265e17bbbb6275026a795618a8dba27

                                        SHA256

                                        c0abffd3fb0886bd36c6595a32845cfa035aa3f35e2f92ed198bb8649430d388

                                        SHA512

                                        2f676b7250ca419cabf388e9c8b8c6121579e33ba2b20ebaf62649d8bfbf98e9e0094f9071b8b6956e9482a29d76862b867288567e96d84deedbc4e4085642ed

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        7025ed3a0e29ff3984ab9867abc1c038

                                        SHA1

                                        b229b3baa148373fdbffb56c9c915769c5fbd42a

                                        SHA256

                                        f55d45735a40e6a771a1978a5cb1be5fc18c158a6c6272154d080d5348e82f9d

                                        SHA512

                                        c270cb5f1ee80363c25dfad608fc072bc6bcf5226d714eeab1d1d5423ad7c5dfbdfcec90bacd8b1ab30863ea82c0036ac7e6e33689ae19f560c90814146b22f8

                                      • memory/1308-19-0x0000000003BA0000-0x0000000003BA1000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2664-44-0x00000000065B0000-0x00000000065BA000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/3008-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3008-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3948-36-0x0000000006B40000-0x0000000006B7C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/3948-35-0x0000000005D50000-0x0000000005D62000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/3948-34-0x00000000059C0000-0x0000000005A26000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/3948-33-0x00000000058F0000-0x0000000005982000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/3948-32-0x0000000005D90000-0x0000000006334000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/3948-31-0x0000000000FD0000-0x000000000102E000-memory.dmp

                                        Filesize

                                        376KB