Analysis

  • max time kernel
    5s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 00:22

General

  • Target

    75e1f05ca19fd1b57611c8230c0fc280N.exe

  • Size

    2.0MB

  • MD5

    75e1f05ca19fd1b57611c8230c0fc280

  • SHA1

    a789442e3a6fac25741bf0f798ba9a87e3f42aef

  • SHA256

    72d916581d640badb4702b8d99ee782033e014295110dbbf8f2a4c281dc421bf

  • SHA512

    9d7b2cf4ce68f1244aaa89d4742d8a60e1b6a535af8305cbae87e543799b9d480eaaf78ae206830e896f04870aa5feea254b80734988c13fe8a7d149dcaa9587

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYS:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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 3 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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\75e1f05ca19fd1b57611c8230c0fc280N.exe
    "C:\Users\Admin\AppData\Local\Temp\75e1f05ca19fd1b57611c8230c0fc280N.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:912
    • 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:4592
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 548
          3⤵
          • Program crash
          PID:1268
      • 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:4448
        • 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:2088
        • 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:4164
          • 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:3196
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TOXTHXfypm2a.bat" "
            4⤵
              PID:3824
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3544
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2956
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3216
                    • 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:2932
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 2228
                  4⤵
                  • Program crash
                  PID:3464
            • C:\Users\Admin\AppData\Local\Temp\75e1f05ca19fd1b57611c8230c0fc280N.exe
              "C:\Users\Admin\AppData\Local\Temp\75e1f05ca19fd1b57611c8230c0fc280N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1232
            • 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:3000
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4592 -ip 4592
            1⤵
              PID:4288
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4164 -ip 4164
              1⤵
                PID:1296
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:828
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:856
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:112
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 520
                          3⤵
                          • Program crash
                          PID:3528
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:4556
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:3728
                          • 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:3992
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 856 -ip 856
                          1⤵
                            PID:1396
                          • C:\Windows\system32\dwm.exe
                            "dwm.exe"
                            1⤵
                              PID:4864
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:1488
                              • C:\Windows\system32\dwm.exe
                                "dwm.exe"
                                1⤵
                                  PID:432
                                • C:\Windows\system32\dwm.exe
                                  "dwm.exe"
                                  1⤵
                                    PID:5008
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:3544
                                    • C:\Windows\system32\sihost.exe
                                      sihost.exe
                                      1⤵
                                        PID:3596
                                      • C:\Windows\system32\sihost.exe
                                        sihost.exe
                                        1⤵
                                          PID:4412
                                        • C:\Windows\system32\sihost.exe
                                          sihost.exe
                                          1⤵
                                            PID:2068
                                          • C:\Windows\system32\sihost.exe
                                            sihost.exe
                                            1⤵
                                              PID:4304
                                            • C:\Windows\system32\sihost.exe
                                              sihost.exe
                                              1⤵
                                                PID:2272
                                              • C:\Windows\system32\sihost.exe
                                                sihost.exe
                                                1⤵
                                                  PID:4460
                                                • C:\Windows\System32\smss.exe
                                                  \SystemRoot\System32\smss.exe 000000ac 00000084
                                                  1⤵
                                                    PID:4164
                                                  • C:\Windows\System32\smss.exe
                                                    \SystemRoot\System32\smss.exe 000000a4 00000084
                                                    1⤵
                                                      PID:2088
                                                    • C:\Windows\System32\smss.exe
                                                      \SystemRoot\System32\smss.exe 000000bc 00000084
                                                      1⤵
                                                        PID:3196

                                                      Network

                                                      MITRE ATT&CK Enterprise v15

                                                      Replay Monitor

                                                      Loading Replay Monitor...

                                                      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\TOXTHXfypm2a.bat

                                                        Filesize

                                                        208B

                                                        MD5

                                                        49ff24ab7744a6665a1cdda5619dcba0

                                                        SHA1

                                                        7b68695d166d5b0477240b7ace10d4fd5f719416

                                                        SHA256

                                                        c0bf13edd98cc1c70a2b405291d1997d399cbac1893eb8f533d544ecec679d44

                                                        SHA512

                                                        44b954f333d52763c261172f8aa271af500613e5bfed1900484d6db198705fae86e138bbbd804ee9e4944999a2f1c350691f3b9f79bc10c54222aceb884542ea

                                                      • 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\08-14-2024

                                                        Filesize

                                                        224B

                                                        MD5

                                                        1f15195aad375d204161b423dce37909

                                                        SHA1

                                                        b723465c35144de48209eee819eb4b9da9bc6ddf

                                                        SHA256

                                                        cd529bff653168ece1c8e2007c4d3164171967dcb4274df0e9559e29e18e0b18

                                                        SHA512

                                                        499dbc57578153eb16722a351b9837cc93b2fa93eb85e8ea6e4a842485550b01a998d2d0bb601d6f76de7f6621df56d876b982deab4362d566a2bb5982132005

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

                                                        Filesize

                                                        2.0MB

                                                        MD5

                                                        00f2acbba46db36075711f2210ee3dc2

                                                        SHA1

                                                        90785663e8b2e325929c83eb41704ce717959011

                                                        SHA256

                                                        b92830c130c8a8cb4ce451f7e76a3c587b9e5e74732fb99c79b0a1ebca0df9ee

                                                        SHA512

                                                        7e46fffdc1496d4bdeea9726b21dcb3336fdfe98a5fa7f0180e669b934cda00732365703946607d3fa3574db12bcc6bf7922cf2d174dfb07f17029b9533ae19b

                                                      • memory/912-45-0x0000000004150000-0x0000000004151000-memory.dmp

                                                        Filesize

                                                        4KB

                                                      • memory/912-28-0x0000000004150000-0x0000000004151000-memory.dmp

                                                        Filesize

                                                        4KB

                                                      • memory/1232-27-0x0000000000FE0000-0x0000000001000000-memory.dmp

                                                        Filesize

                                                        128KB

                                                      • memory/1232-19-0x0000000000FE0000-0x0000000001000000-memory.dmp

                                                        Filesize

                                                        128KB

                                                      • memory/3728-72-0x0000000000400000-0x0000000000420000-memory.dmp

                                                        Filesize

                                                        128KB

                                                      • memory/3728-78-0x0000000000400000-0x0000000000420000-memory.dmp

                                                        Filesize

                                                        128KB

                                                      • memory/4164-44-0x0000000006900000-0x000000000690A000-memory.dmp

                                                        Filesize

                                                        40KB

                                                      • memory/4448-33-0x0000000005770000-0x0000000005802000-memory.dmp

                                                        Filesize

                                                        584KB

                                                      • memory/4448-34-0x00000000058B0000-0x0000000005916000-memory.dmp

                                                        Filesize

                                                        408KB

                                                      • memory/4448-35-0x0000000005DE0000-0x0000000005DF2000-memory.dmp

                                                        Filesize

                                                        72KB

                                                      • memory/4448-36-0x00000000069D0000-0x0000000006A0C000-memory.dmp

                                                        Filesize

                                                        240KB

                                                      • memory/4448-32-0x0000000005E60000-0x0000000006404000-memory.dmp

                                                        Filesize

                                                        5.6MB

                                                      • memory/4448-31-0x0000000000E50000-0x0000000000EAE000-memory.dmp

                                                        Filesize

                                                        376KB