Analysis

  • max time kernel
    4s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2025 17:55

General

  • Target

    b8898efaa954fc0c03b9c39ddef10afed001d5a2807dfa033d938700035d1c8eN.exe

  • Size

    2.0MB

  • MD5

    e38088f4b0a31ef0137687f74aae8d10

  • SHA1

    aaa60d48c7cdf0ba35d913b54a19193b978f732e

  • SHA256

    b8898efaa954fc0c03b9c39ddef10afed001d5a2807dfa033d938700035d1c8e

  • SHA512

    00129f13004e63de02bd8f25346bd2abcf47aa5a6afa09cd9d1d7b3e81b6ecd2063c501dd7156484ae7e106e8aaccaed40b1a6376bfa6d5ba3d451b024279b9d

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY7:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YF

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.

  • Azorult family
  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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\b8898efaa954fc0c03b9c39ddef10afed001d5a2807dfa033d938700035d1c8eN.exe
    "C:\Users\Admin\AppData\Local\Temp\b8898efaa954fc0c03b9c39ddef10afed001d5a2807dfa033d938700035d1c8eN.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:4204
    • 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:3648
      • 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 3648 -s 548
          3⤵
          • Program crash
          PID:4504
      • 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:1868
        • 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:3124
        • 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:4708
          • 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:1824
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\rEDrANwBcgU7.bat" "
            4⤵
              PID:2904
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4604
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3300
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4504
                    • 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:3220
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hUnk8vu7C7sN.bat" "
                      6⤵
                        PID:3768
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2396
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3588
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2544
                              • 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:4212
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 2220
                            6⤵
                            • Program crash
                            PID:4232
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4708 -s 2004
                        4⤵
                        • Program crash
                        PID:1812
                  • C:\Users\Admin\AppData\Local\Temp\b8898efaa954fc0c03b9c39ddef10afed001d5a2807dfa033d938700035d1c8eN.exe
                    "C:\Users\Admin\AppData\Local\Temp\b8898efaa954fc0c03b9c39ddef10afed001d5a2807dfa033d938700035d1c8eN.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2276
                  • 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:4476
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
                  1⤵
                    PID:2500
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:460
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4660
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4452
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 520
                              3⤵
                              • Program crash
                              PID:548
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2808
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2456
                              • 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:1888
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4660 -ip 4660
                              1⤵
                                PID:4184
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4708 -ip 4708
                                1⤵
                                  PID:4732
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4504 -ip 4504
                                  1⤵
                                    PID:2828
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3236
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:832

                                      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\hUnk8vu7C7sN.bat

                                        Filesize

                                        208B

                                        MD5

                                        3e139f49727b543972d335c2bfebe613

                                        SHA1

                                        4c5688e174d516a19d68a691cd97a3686371dfd0

                                        SHA256

                                        8e4844a24748308f394da7a17d706559cca51ff2e40ac2ec0c459f5dc4d0a76c

                                        SHA512

                                        e512252417ee4b2eb4a53922ac73a2b876fc209b54e76973e65d38512e6d6ee310a6dddc968886ae036ded1cdf032cbadeb2f67784a0355f7a102029856f64dd

                                      • C:\Users\Admin\AppData\Local\Temp\rEDrANwBcgU7.bat

                                        Filesize

                                        208B

                                        MD5

                                        40f07f9f71cdd942f2fb55cbb58d412f

                                        SHA1

                                        8dba3b3369b214739c690c67d8f7a372a97639c3

                                        SHA256

                                        0c5b12af291725c7c0a0edaefb58e77f2cc8bccbcd0ececd001d6b4a7e90e40e

                                        SHA512

                                        39adbf005475d6a9bbb97e223c79fcf4f1d00e28aa9536cf2252d1dd8ef057ee64e92776466446cdcd8a09b7475666e1d637187f33ded4bf4a3b856c69207b48

                                      • 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\01-04-2025

                                        Filesize

                                        224B

                                        MD5

                                        a6a96ad028c7b9aecd58d5abd0c3a547

                                        SHA1

                                        8a1af80e8cbbd16fc4ffeb2a59dd162db0eff02b

                                        SHA256

                                        3c02462659048de0f00717ed7b343fe9f1fb02cd14aefcd294247a6325619178

                                        SHA512

                                        c2ae5fe7d363b85efa3668d7845dc1eae2e59f9c49ea6b29437fa74ba29afe9cb77e15b9870ad60fdf0319c91574d6d066f8239f7d4d5712daff5062b142acd1

                                      • C:\Users\Admin\AppData\Roaming\Logs\01-04-2025

                                        Filesize

                                        224B

                                        MD5

                                        917204b6ce6c717643dc90a4a2841dcd

                                        SHA1

                                        8436fef9a17e0f5df1d0c28b462c6e641d73ced4

                                        SHA256

                                        1b04e687c5fe3b9ffc18fde501e252b8b3f7ac1764084f124966c94dd43928dc

                                        SHA512

                                        80675ae67be691b7b0bf79cbd3a6483725555d35694cf2bb98ecdc82f83524a6b2b7c3e85d5e2b5c0583d450406cdac14275bcae696b6dafc3dc383e1d0bb806

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        78088da187ce35e46c68d4cee2ee85d0

                                        SHA1

                                        26f586e549d4c3ce9d7dd49aaa67e310c29328b4

                                        SHA256

                                        fc62d536caedfdad671d1563426be3d95417b0b84ecacd1846375fbc902a5363

                                        SHA512

                                        52c879d62264c48b249227413417a4536d1988244f9cbe37cf60b26f854fe22fc626e75d07c9a7c0e0c808fb7daa092d2e45e26543417bc8b2cbf8e0cdc10217

                                      • memory/1868-36-0x0000000006660000-0x000000000669C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/1868-35-0x0000000006120000-0x0000000006132000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/1868-34-0x00000000054C0000-0x0000000005526000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/1868-33-0x0000000005400000-0x0000000005492000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/1868-32-0x0000000005A70000-0x0000000006014000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/1868-31-0x0000000000AD0000-0x0000000000B2E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/2276-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2276-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2456-66-0x00000000005C0000-0x00000000005E0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/2456-72-0x00000000005C0000-0x00000000005E0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4204-18-0x0000000003930000-0x0000000003931000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4708-44-0x0000000006B50000-0x0000000006B5A000-memory.dmp

                                        Filesize

                                        40KB