Analysis

  • max time kernel
    5s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 01:45

General

  • Target

    77a3cdf055c31b5eaf642d84edb3273602fc5c1524807214135b5da94b3af77cN.exe

  • Size

    2.0MB

  • MD5

    5a34976a81eadfa957b9b154917a6a60

  • SHA1

    6a547e796c48c17f7331ae4a1cd32f14cab1c232

  • SHA256

    77a3cdf055c31b5eaf642d84edb3273602fc5c1524807214135b5da94b3af77c

  • SHA512

    f7d01fef694e212b8e0e6a37ad983d006130e3b94062f25c61dbd86c4279e2b79aa775596964f5c95568e8887c42ebe44152d68d28ebb8fbcea8b899909e1166

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYl:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

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 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 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 9 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77a3cdf055c31b5eaf642d84edb3273602fc5c1524807214135b5da94b3af77cN.exe
    "C:\Users\Admin\AppData\Local\Temp\77a3cdf055c31b5eaf642d84edb3273602fc5c1524807214135b5da94b3af77cN.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:4460
    • 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:4268
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4268 -s 548
          3⤵
          • Program crash
          PID:3604
      • 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:1324
        • 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:1828
        • 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:4632
          • 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:4404
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hA0Y9yOAgRRH.bat" "
            4⤵
              PID:64
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3916
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4264
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    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
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:1464
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\jA1vxvZN2KBZ.bat" "
                      6⤵
                        PID:1828
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1736
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3492
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:1372
                              • 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:1248
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 2260
                            6⤵
                            • Program crash
                            PID:2536
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4632 -s 2248
                        4⤵
                        • Program crash
                        PID:5096
                  • C:\Users\Admin\AppData\Local\Temp\77a3cdf055c31b5eaf642d84edb3273602fc5c1524807214135b5da94b3af77cN.exe
                    "C:\Users\Admin\AppData\Local\Temp\77a3cdf055c31b5eaf642d84edb3273602fc5c1524807214135b5da94b3af77cN.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2684
                  • 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:1560
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4268 -ip 4268
                  1⤵
                    PID:4564
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                    • Checks computer location settings
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of WriteProcessMemory
                    PID:1584
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                      • Executes dropped EXE
                      PID:640
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:960
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 640 -s 520
                          3⤵
                          • Program crash
                          PID:456
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:4928
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:2092
                          • 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:1208
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 640 -ip 640
                          1⤵
                            PID:3568
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4632 -ip 4632
                            1⤵
                              PID:3236
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2544 -ip 2544
                              1⤵
                                PID:2276
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:5004
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:1632
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:1724

                                    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\hA0Y9yOAgRRH.bat

                                      Filesize

                                      208B

                                      MD5

                                      dc375bfc117e3eeeb7128d33c2161fbf

                                      SHA1

                                      0f7afd964107bf35f526a8d0f5f251b231df2f01

                                      SHA256

                                      13c0e0ba0c91617340d5420d445a383c19d59768d1a7dc4427d0078c43f0f161

                                      SHA512

                                      91118c5248ab0904aefbda4fef1942e9f30006e8f0ac72b5a1b516bb6441f82a6bdc5b4eec4c054aba8d166f4ba5c681dd1dc1dc38f21f14e93134f07d5314e3

                                    • C:\Users\Admin\AppData\Local\Temp\jA1vxvZN2KBZ.bat

                                      Filesize

                                      208B

                                      MD5

                                      7f26c9cf584a5aa48c69aa03870a3e20

                                      SHA1

                                      667a7e6c581e30ab582db6dccda6f5cc7daba1a4

                                      SHA256

                                      210bd885c2de2ed438f26f6957b35c7b4906b619468d760c4c1a18da18278015

                                      SHA512

                                      311c35e5a4c06a885f2ef7e1fcb2d94f2e5f635127e297e82546139cea5e58e780ad9275f5e268a6035d58780b2519f76e8ede10aa466416fd2972bd3a5ff080

                                    • 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\12-08-2024

                                      Filesize

                                      224B

                                      MD5

                                      bedaf9993f55bd16a670ccdbc03fb889

                                      SHA1

                                      a7972872e649df5ccb051429cd3526d104376fac

                                      SHA256

                                      1c5f6220708cb97c2aecd7d2933d1926f42404ff42b8617820f4e1ba6a54e1a5

                                      SHA512

                                      e416af0cf8e844a1429a5cb37db37625fb50512b9330a6f0b518dbb26e560c7b1a476bb31aeb571c28d855fcd05d4158d78dd00e41772a23f1cd05cc7a6c3cb5

                                    • C:\Users\Admin\AppData\Roaming\Logs\12-08-2024

                                      Filesize

                                      224B

                                      MD5

                                      dd0de6794d5a9af629743d38af3cf83d

                                      SHA1

                                      116a2f41bc0fec72e7931e2ce7ed981d4786d39e

                                      SHA256

                                      763e09fc28efa9c4748b955719282a0beab5612f92978287d43254164fbe50a5

                                      SHA512

                                      7fe2460c3fca348210acc180f56599504074a52b3383ec98ad238f95a16e00b20c50f8fde649daf1b17d3ea64f04d7791d785c7a05458b093e0e24ca877f49da

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      4f487f1bcc93eb63b37a09e684783b82

                                      SHA1

                                      9347e17694decf65d4e022e03d93dec46d465f9a

                                      SHA256

                                      f65ba6df0ab6bcb4ce72622e8645af22fff9e3870954d300cec0929a0f513f21

                                      SHA512

                                      9679fa315fa9e46b40ce7ca6a8d2a86316f83206a1e9fbf42ad9cb0092167efdd36309d7b066755d3cc5e802448ddd0fd6676f17f0595058f21c1e7662d7daff

                                    • memory/1324-30-0x0000000000180000-0x00000000001DE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/1324-35-0x0000000004CA0000-0x0000000004D06000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1324-36-0x0000000005900000-0x0000000005912000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1324-37-0x0000000005E40000-0x0000000005E7C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1324-34-0x0000000004C00000-0x0000000004C92000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/1324-33-0x00000000050B0000-0x0000000005654000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1324-20-0x0000000072FBE000-0x0000000072FBF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2092-68-0x0000000000F70000-0x0000000000F90000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2092-73-0x0000000000F70000-0x0000000000F90000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2684-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2684-22-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4460-19-0x00000000043F0000-0x00000000043F1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4632-45-0x00000000063E0000-0x00000000063EA000-memory.dmp

                                      Filesize

                                      40KB