Analysis

  • max time kernel
    4s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    16-08-2024 18:30

General

  • Target

    061f2e7e383215a26deeebdda20029cb584c80d295130ec7bda87d578e42126e.exe

  • Size

    2.0MB

  • MD5

    2b75d0b0e006785720a3817122cf659f

  • SHA1

    5632d408e2463911b1e8b36b050cbc3b4a192d05

  • SHA256

    061f2e7e383215a26deeebdda20029cb584c80d295130ec7bda87d578e42126e

  • SHA512

    1025e615659298821b01b984cb0ed9d14a7c24631f509d2b436d810ca3cc08bb42e09360ebac14a19642a390309212032c9e47a86b86ad96b12961145dbb0152

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYD:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YV

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 5 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 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 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\061f2e7e383215a26deeebdda20029cb584c80d295130ec7bda87d578e42126e.exe
    "C:\Users\Admin\AppData\Local\Temp\061f2e7e383215a26deeebdda20029cb584c80d295130ec7bda87d578e42126e.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:900
    • 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:2076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2180
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2776
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:768
        • 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:756
        • 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
          PID:2328
          • 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⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2240
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\mT3xKmnrtt8c.bat" "
            4⤵
              PID:2468
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1944
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1876
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 1456
                4⤵
                • Program crash
                PID:1860
          • C:\Users\Admin\AppData\Local\Temp\061f2e7e383215a26deeebdda20029cb584c80d295130ec7bda87d578e42126e.exe
            "C:\Users\Admin\AppData\Local\Temp\061f2e7e383215a26deeebdda20029cb584c80d295130ec7bda87d578e42126e.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2836
          • 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:2632
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {DBE1ABCA-62F1-47A5-9F27-AB81F2888682} S-1-5-21-940600906-3464502421-4240639183-1000:MGWWAYYN\Admin:Interactive:[1]
          1⤵
            PID:2148
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:1588
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:1572
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:2204
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2056
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:2428
                        • 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
                          3⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:752

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\mT3xKmnrtt8c.bat

                      Filesize

                      208B

                      MD5

                      878d2aa27edb7f7c78b2362af5b982b1

                      SHA1

                      f9babe5fe4dab4644a6c56284526cb3505efbf28

                      SHA256

                      091fc1610100a6c46858fb7a12dbc7f9925a0c2b5b559cdf5ef090ca58945bc7

                      SHA512

                      c02be3094252e1314680fc6343910395b844784595e65c666c8d75b2b8ad6b1c7e5dfb19a4ebd1ca91fca170f44c7f180c501b222a55aa65bcdb737e555639bc

                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                      Filesize

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                      Filesize

                      2.0MB

                      MD5

                      6761b91f087cd143871900ff1f799ac0

                      SHA1

                      416a366c657a34d001ebf29b437494522feb9a5b

                      SHA256

                      0a5c25509ffb28a402907e4c5cf5e1e891c52a775c77b75ee0eeb9fcc796fda0

                      SHA512

                      90d5e53e2fb2b9ab0e254aecddb21683f7730e4b9e55e2d665b59d26e7cead4fdd87edf66a8ae33fd896500d9fef9b1f0862d24dd29156e14ff2906519e61075

                    • \Users\Admin\AppData\Local\Temp\windef.exe

                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • memory/768-44-0x0000000000C20000-0x0000000000C7E000-memory.dmp

                      Filesize

                      376KB

                    • memory/900-30-0x0000000000870000-0x0000000000871000-memory.dmp

                      Filesize

                      4KB

                    • memory/2056-103-0x0000000001360000-0x00000000013BE000-memory.dmp

                      Filesize

                      376KB

                    • memory/2204-91-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2204-102-0x00000000003D0000-0x000000000046C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2204-98-0x00000000003D0000-0x000000000046C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2204-96-0x000007FFFFFDA000-0x000007FFFFFDB000-memory.dmp

                      Filesize

                      4KB

                    • memory/2328-58-0x0000000001140000-0x000000000119E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2428-88-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2428-94-0x00000000000D0000-0x00000000000F0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2428-85-0x00000000000D0000-0x00000000000F0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2836-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2836-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2836-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2836-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB