Analysis

  • max time kernel
    5s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-10-2024 08:36

General

  • Target

    a71d11b5a3342630144b38c1e6144f3fa1db2fab560a1a15e63984e93f476d9eN.exe

  • Size

    2.0MB

  • MD5

    386be81df66358401e1f15650f20d290

  • SHA1

    3705ee0aab1ee903e17a2c30e67bd7bcc31ccabe

  • SHA256

    a71d11b5a3342630144b38c1e6144f3fa1db2fab560a1a15e63984e93f476d9e

  • SHA512

    44c3895365db1d8666008c8dca75007e300515a02b4dc8d5115c6e6b145515edd72101155b6f63a767c43404a46c0d714f622faf3ea9b53a3391181085456dfc

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYP:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yt

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\a71d11b5a3342630144b38c1e6144f3fa1db2fab560a1a15e63984e93f476d9eN.exe
    "C:\Users\Admin\AppData\Local\Temp\a71d11b5a3342630144b38c1e6144f3fa1db2fab560a1a15e63984e93f476d9eN.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:4616
    • 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:4872
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 552
          3⤵
          • Program crash
          PID:4208
      • 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:1160
        • 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:3580
        • 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:5088
          • 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:4596
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IuaQZ50q2qss.bat" "
            4⤵
              PID:2796
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2940
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4628
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:720
                    • 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:4792
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7u6M5FsZkOV8.bat" "
                      6⤵
                        PID:4596
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1400
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3888
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:840
                              • 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:3616
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 2252
                            6⤵
                            • Program crash
                            PID:4368
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1996
                        4⤵
                        • Program crash
                        PID:2480
                  • C:\Users\Admin\AppData\Local\Temp\a71d11b5a3342630144b38c1e6144f3fa1db2fab560a1a15e63984e93f476d9eN.exe
                    "C:\Users\Admin\AppData\Local\Temp\a71d11b5a3342630144b38c1e6144f3fa1db2fab560a1a15e63984e93f476d9eN.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1660
                  • 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:1176
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4872 -ip 4872
                  1⤵
                    PID:4504
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5088 -ip 5088
                    1⤵
                      PID:4820
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:2140
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4452
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:3352
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 520
                                3⤵
                                • Program crash
                                PID:208
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1496
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3096
                                • 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:1828
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4452 -ip 4452
                                1⤵
                                  PID:4480
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 720 -ip 720
                                  1⤵
                                    PID:2320
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3700
                                    • 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\7u6M5FsZkOV8.bat

                                        Filesize

                                        208B

                                        MD5

                                        8a34b4b6a12243df73796275162d9d79

                                        SHA1

                                        805c979bd182aa43a0a1a4fa76da0ce0ff3d814f

                                        SHA256

                                        7ffd9cc32506d677cd56ab469ccc74dab5e2bbfbf335b4f6c3fae338906bf594

                                        SHA512

                                        82a5b6a1f8be747e051e8d57966a4008e7da3bf712710b0b80df455114bd75c2b0305114fa247ec108a89083240e4aba7b5f590299c71cdf1659064853d81cf4

                                      • C:\Users\Admin\AppData\Local\Temp\IuaQZ50q2qss.bat

                                        Filesize

                                        208B

                                        MD5

                                        8ad199627c2bdf5237f341ecc8a57c7e

                                        SHA1

                                        3fe25f6438a88a70dbf36f5f31e3b80ee89839b6

                                        SHA256

                                        763a10265bd6564c995a89acacb4c6945a551b84b1244cd7c6f17ddda9776673

                                        SHA512

                                        8cbfe4f8cf7e6c5b300f13620330fb8ccea0e07854ef614a41b2420e434aeaf9ee4f62201c9c6ecda6238d7804ddf4dff341f36da84a0c3853b6b66c2aa68417

                                      • 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\10-16-2024

                                        Filesize

                                        224B

                                        MD5

                                        9bdae5b18e9535def63a869a81c18945

                                        SHA1

                                        b98c84cfce2730a9abcfbeacd6cdecc87bae6839

                                        SHA256

                                        c968274c97013ad26e62c899f0a3ab33364d4f630038cf44df7e59837690bd58

                                        SHA512

                                        2030631681bff8cc16d0ab424ba71286c8044850ad7436befb21f05c398d91b860e7c3f39b4a564b66d69aec85ae90e71e97c99c0b3dd4dbad6cdbda59b6f10a

                                      • C:\Users\Admin\AppData\Roaming\Logs\10-16-2024

                                        Filesize

                                        224B

                                        MD5

                                        2e9f98acfa2203f25d8f80da9656d904

                                        SHA1

                                        6ff260d71dfa676215bd82b138694fc606b0818a

                                        SHA256

                                        bde4a8580d42703239ec77dc3ce15f7ed581303370ffc3577372069b36ea6aba

                                        SHA512

                                        51b0eb72ac59ad476649f3525b97c344c3b7711f01c98e998cc984e1e01f968d12935f18c746a8934d0bc7acb9ef8b92c7dfdb240bbd84c08717a7054a801cdb

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        2e6baca0d0eba769b349797b28399d23

                                        SHA1

                                        8084d8e7bcdf0cce7805a4f584d3be6fb204c89b

                                        SHA256

                                        2e199614730cfab0031eb48e463f56ac27112165193a7c45a5321a43d6493a21

                                        SHA512

                                        3ceec2aaed4123eff9e0539bcbcb5cf9aa6cf89cc9aef6a1ef5442ae355e9259aefb75bade5c64da110fb4ef16b8475d7231ed6183eaecd8684fc19daf44e47e

                                      • memory/1160-32-0x0000000000720000-0x000000000077E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/1160-35-0x0000000005110000-0x0000000005176000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/1160-36-0x00000000055A0000-0x00000000055B2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/1160-37-0x0000000006290000-0x00000000062CC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/1160-34-0x0000000005070000-0x0000000005102000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/1160-33-0x0000000005620000-0x0000000005BC4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/1160-29-0x0000000072DEE000-0x0000000072DEF000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/1660-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1660-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4616-19-0x0000000003940000-0x0000000003941000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/5088-45-0x0000000006780000-0x000000000678A000-memory.dmp

                                        Filesize

                                        40KB