Analysis

  • max time kernel
    5s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2024 03:32

General

  • Target

    2853af39b7939e7f03c3154c09cc1fdc3b57f46f16ea34a893b24f7acf9b9505N.exe

  • Size

    2.0MB

  • MD5

    38ca771118828d9de8d70fbc26560e90

  • SHA1

    fcd46f141de25aa953072f7afe04d54aa4cbdecc

  • SHA256

    2853af39b7939e7f03c3154c09cc1fdc3b57f46f16ea34a893b24f7acf9b9505

  • SHA512

    2344679577dc741fd228278050bbe84e12666158569e25a850d6606b63cdab8f358372f58349d7f256d19bcd77efc45c81e4bd77f5c6f4e1dce0a75aca562f22

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y6

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

    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 1 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\2853af39b7939e7f03c3154c09cc1fdc3b57f46f16ea34a893b24f7acf9b9505N.exe
    "C:\Users\Admin\AppData\Local\Temp\2853af39b7939e7f03c3154c09cc1fdc3b57f46f16ea34a893b24f7acf9b9505N.exe"
    1⤵
    • 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:2636
    • 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:2376
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4304
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 548
          3⤵
          • Program crash
          PID:2452
      • 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:3988
        • 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:2552
        • 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:2468
          • 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:884
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\52DDShOsHmTA.bat" "
            4⤵
              PID:3756
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3376
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3428
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4704
                    • 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:4880
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\aeMB4SXXJCkW.bat" "
                      6⤵
                        PID:1404
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:772
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1844
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 2232
                          6⤵
                          • Program crash
                          PID:2840
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 2232
                      4⤵
                      • Program crash
                      PID:1420
                • C:\Users\Admin\AppData\Local\Temp\2853af39b7939e7f03c3154c09cc1fdc3b57f46f16ea34a893b24f7acf9b9505N.exe
                  "C:\Users\Admin\AppData\Local\Temp\2853af39b7939e7f03c3154c09cc1fdc3b57f46f16ea34a893b24f7acf9b9505N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2224
                • 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:668
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2376 -ip 2376
                1⤵
                  PID:4020
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2468 -ip 2468
                  1⤵
                    PID:4944
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:2432
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4020
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4912
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 520
                              3⤵
                              • Program crash
                              PID:2908
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2452
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4220
                              • 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:1840
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4020 -ip 4020
                              1⤵
                                PID:2464
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 4704 -ip 4704
                                1⤵
                                  PID:4840
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:2516
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4420

                                    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\52DDShOsHmTA.bat

                                      Filesize

                                      208B

                                      MD5

                                      8559d599a3219c182ec9c85b63fb4fe4

                                      SHA1

                                      cab48d673dcb5b7a9f1c3ad6f302ec1fb33390e9

                                      SHA256

                                      75a80e8b54967bcff5bc0efdd50d9caabc76cc9f61c94cce8705f3fdb6a43aa4

                                      SHA512

                                      ba5f1563fe4faec08ef8a8b30da477814ba5b694f3f25c26f551ec41edec25e86d6d538be92f52dd9b780f59dcea1eb4050ea7b9bdaea4438acc9f9074977bb7

                                    • C:\Users\Admin\AppData\Local\Temp\aeMB4SXXJCkW.bat

                                      Filesize

                                      208B

                                      MD5

                                      0fc8b8d31f012cd7a5b3c5e7aeca4cbe

                                      SHA1

                                      cfc751dc989299e859282310a390e635695c353f

                                      SHA256

                                      8fbf5b3b64dc1027bf292fb2873f5b2a2601e752dffc96c98fe492b151ae9a10

                                      SHA512

                                      4d8eddaa7142843e03bb8094f0a54f7dee29e5683e7b54ab1809efdfed0e7bba5e38f1353196a7968318f1de135c1f96862926283e66fd6b37f77a83b71a1639

                                    • 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\10-03-2024

                                      Filesize

                                      224B

                                      MD5

                                      485a261ff00511b9d1386f825cfd0048

                                      SHA1

                                      110ebb7ce702dcb646f395de532a48dc00aa98d9

                                      SHA256

                                      e0a636233bca3e49b18a8846f1c241cf07a0f221f37d82bfd553ed5229c7cf10

                                      SHA512

                                      8e71b723513774a61e8294d6da6120a1a9b2d3a270f0f19a34686e54fe0f92f5b43a861c555bc7f2c6e9c29daad9f4c90cc82d6aa77a0196217d6460f9957977

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      375d30e62f378ca811e2f375646b0bc0

                                      SHA1

                                      7e39a56cdd6130497c0d72b33ce000c53eee346e

                                      SHA256

                                      d3babd3cb351ca05892f4cd55600066dcd178fe0b3a7004ce234e268e1ded218

                                      SHA512

                                      613865f89cda468a1964e477abe32366c577d73ebbf842f29321af1b253e4bf92c512164d598aa27ca0640aaf0aeb91d6980ca835b777f7ad892cf59b71ae830

                                    • memory/2224-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2224-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2468-44-0x0000000006C00000-0x0000000006C0A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2636-19-0x00000000024E0000-0x00000000024E1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3988-34-0x0000000005480000-0x00000000054E6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/3988-35-0x00000000061B0000-0x00000000061C2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/3988-36-0x00000000066F0000-0x000000000672C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/3988-33-0x0000000005530000-0x00000000055C2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/3988-32-0x0000000005AE0000-0x0000000006084000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/3988-31-0x0000000000B80000-0x0000000000BDE000-memory.dmp

                                      Filesize

                                      376KB