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Analysis

  • max time kernel
    5s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/06/2024, 01:41

General

  • Target

    471f39f758c3c50f62d295dd22e3a060.exe

  • Size

    2.0MB

  • MD5

    471f39f758c3c50f62d295dd22e3a060

  • SHA1

    6fa6bcab273ec548205d4f38723b227e1f4edfc7

  • SHA256

    8ee25c1d81e4220271ae3b191791e0e5b794331dd12710daa9a1650574c3294c

  • SHA512

    213a2b4aceb19b120474a45116bd410f7491763562e12e971c8144a72a9e806cb183484040bdae2d1a0abf6f3980134be4cf51f02a1573e92fe848b30dac9607

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYv:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yh

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
  • Creates scheduled task(s) 1 TTPs 5 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\471f39f758c3c50f62d295dd22e3a060.exe
    "C:\Users\Admin\AppData\Local\Temp\471f39f758c3c50f62d295dd22e3a060.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3516
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3516 -s 548
          3⤵
          • Program crash
          PID:4148
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:752
        • 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⤵
          • Creates scheduled task(s)
          PID:2728
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4432
          • 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⤵
            • Creates scheduled task(s)
            PID:3176
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5lONcFZGkP4Q.bat" "
            4⤵
              PID:640
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:228
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:852
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4484
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:3780
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6AaefKcC5MHY.bat" "
                      6⤵
                        PID:2732
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 2216
                        6⤵
                        • Program crash
                        PID:4696
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 1984
                    4⤵
                    • Program crash
                    PID:468
              • C:\Users\Admin\AppData\Local\Temp\471f39f758c3c50f62d295dd22e3a060.exe
                "C:\Users\Admin\AppData\Local\Temp\471f39f758c3c50f62d295dd22e3a060.exe"
                2⤵
                  PID:4784
                • 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⤵
                  • Creates scheduled task(s)
                  PID:768
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3516 -ip 3516
                1⤵
                  PID:3988
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:2996
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1060
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1400
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 520
                            3⤵
                            • Program crash
                            PID:624
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:1300
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:548
                            • 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⤵
                              • Creates scheduled task(s)
                              PID:4324
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1060 -ip 1060
                            1⤵
                              PID:4592
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4432 -ip 4432
                              1⤵
                                PID:4404
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4484 -ip 4484
                                1⤵
                                  PID:5092
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4484 -ip 4484
                                  1⤵
                                    PID:3864
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:3016
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:3216
                                      • C:\Windows\system32\dwm.exe
                                        "dwm.exe"
                                        1⤵
                                          PID:4028
                                        • C:\Windows\system32\dwm.exe
                                          "dwm.exe"
                                          1⤵
                                            PID:2632
                                          • C:\Windows\system32\dwm.exe
                                            "dwm.exe"
                                            1⤵
                                              PID:4076
                                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                              1⤵
                                                PID:1532
                                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                1⤵
                                                  PID:2368

                                                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\5lONcFZGkP4Q.bat

                                                  Filesize

                                                  208B

                                                  MD5

                                                  5eab9b1df79e460342b77d2b6b214df1

                                                  SHA1

                                                  4cd7d0aabe02dadbcab24ebb5d7106f6b195d3ca

                                                  SHA256

                                                  249aaa1887fb7cf7c7cfad3fde43a1e78395e150b1bdddd880a21d73415f84d4

                                                  SHA512

                                                  693e0c0c10c5cffa3446e5f211fd07a0990f8490030f308045b8d614f8db043d1ae9493bafc278cb54a8f4f56cadd6fe7e1aec1ddcb9af57c837d328b4136c1b

                                                • 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\06-14-2024

                                                  Filesize

                                                  224B

                                                  MD5

                                                  0c1bf8822271d86d23ba21cfe34b6b1a

                                                  SHA1

                                                  35154d78fce077ff8abc68dc3eb5faf6877b1fe6

                                                  SHA256

                                                  1fcecba8df719f55e74dd6e073e6a4c74e1c0fc1a8959fbd9d126f5bd4757fe8

                                                  SHA512

                                                  2f5b5b661f41deb69b84cea8f5ce5e9081de0e3d14212da95f3cd26a6d0ff8ae155820d7dbc3deb99e6891a7f3c021d6685e2d0768c9b21ee5119de14fe0fef2

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

                                                  Filesize

                                                  2.0MB

                                                  MD5

                                                  38b26767d3112854d0eb4fb03de57a08

                                                  SHA1

                                                  073aa46a0d9e581ba9f6093ed1ab62e419c27c90

                                                  SHA256

                                                  43bd304a8d7e18d05d396b0686c734fec507573f2c14f4b0f2b0ca6bc6ec1d15

                                                  SHA512

                                                  fbf4f6b51c116f37e1de3e9b61f120590bcfece30d9cc4d9e54104ca62f42797407738d4da39d1e223a034fb6309165570edaac995c6405c6de097930b213424

                                                • memory/752-35-0x0000000005540000-0x00000000055A6000-memory.dmp

                                                  Filesize

                                                  408KB

                                                • memory/752-31-0x0000000005900000-0x0000000005EA4000-memory.dmp

                                                  Filesize

                                                  5.6MB

                                                • memory/752-34-0x00000000054A0000-0x0000000005532000-memory.dmp

                                                  Filesize

                                                  584KB

                                                • memory/752-30-0x00000000009D0000-0x0000000000A2E000-memory.dmp

                                                  Filesize

                                                  376KB

                                                • memory/752-36-0x0000000006150000-0x0000000006162000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/752-37-0x0000000006690000-0x00000000066CC000-memory.dmp

                                                  Filesize

                                                  240KB

                                                • memory/752-19-0x000000007381E000-0x000000007381F000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/1084-20-0x0000000000E80000-0x0000000000E81000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/4432-45-0x0000000006A50000-0x0000000006A5A000-memory.dmp

                                                  Filesize

                                                  40KB

                                                • memory/4784-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                                  Filesize

                                                  128KB

                                                • memory/4784-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                                  Filesize

                                                  128KB