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Analysis

  • max time kernel
    4s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2025, 02:28

General

  • Target

    e329eaa5c013df43ea579571a5ae4d65f8cfd04809aeeb219551c80d6ff42bcd.exe

  • Size

    2.0MB

  • MD5

    89bdd75e21e97be92659871ce863eaa3

  • SHA1

    795d9044f2ae440e92f21dee42b0ccc884c94fc9

  • SHA256

    e329eaa5c013df43ea579571a5ae4d65f8cfd04809aeeb219551c80d6ff42bcd

  • SHA512

    5cb6efc9c022c448cca77f66b12a3ffbecede46cb76815134b87d9c4b7daeb712e7eb9b6f472f5d208b4c51ce4e12b0cd2d0dd5de6e453b16e739a1970f2a1e5

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYM:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ya

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 4 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 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 3 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e329eaa5c013df43ea579571a5ae4d65f8cfd04809aeeb219551c80d6ff42bcd.exe
    "C:\Users\Admin\AppData\Local\Temp\e329eaa5c013df43ea579571a5ae4d65f8cfd04809aeeb219551c80d6ff42bcd.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:2436
    • 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:2056
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2304
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2056 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2496
      • 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:2400
        • 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:2980
        • 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:2948
          • 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:1228
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\TxFYhztBSBWE.bat" "
            4⤵
              PID:1112
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2192
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2840
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2948 -s 1520
                4⤵
                • Program crash
                PID:2028
          • C:\Users\Admin\AppData\Local\Temp\e329eaa5c013df43ea579571a5ae4d65f8cfd04809aeeb219551c80d6ff42bcd.exe
            "C:\Users\Admin\AppData\Local\Temp\e329eaa5c013df43ea579571a5ae4d65f8cfd04809aeeb219551c80d6ff42bcd.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2220
          • 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:2752
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {328C09D4-728B-4380-B0EA-3FA004774498} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
          1⤵
            PID:528
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:2700
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:1260

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

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

                Filesize

                208B

                MD5

                50cc73ef0fbf12809ccee77065d2ccdd

                SHA1

                18ccd1b0fb2825d368e488f5025b9f84089cf84d

                SHA256

                c313009b109a869d1a0fa3c1030df48c7475d9478d271af2212dd2f932229d35

                SHA512

                6a60b45d500f8920b369a73b2a18c4782a6feb42bea9152a3701ad057ccecaaab48f47d5f3a27c1da053619bd53c2b01b2d3cc4aa23f9794d1658dbdb9d399ae

              • 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

                ee32be7e68d2ccb236ea2523a6ac15cb

                SHA1

                a841517c9d3e3c52e3629b22d6036081f5576289

                SHA256

                3b8d2fcc3adc69ea4ccdbf3ed35024dedbaf0cf053136b57c3b13e9d71e6aa6b

                SHA512

                3ce9004d46ede321ec4f036296c86c281241f9f158715d514b256240d7a7210c078a22c861bffa06318dbced14122064869a12082743b41e953734fca480e5ff

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

                Filesize

                349KB

                MD5

                b4a202e03d4135484d0e730173abcc72

                SHA1

                01b30014545ea526c15a60931d676f9392ea0c70

                SHA256

                7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                SHA512

                632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

              • memory/2220-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2220-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/2220-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2220-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2400-49-0x00000000011F0000-0x000000000124E000-memory.dmp

                Filesize

                376KB

              • memory/2436-30-0x0000000000D30000-0x0000000000D31000-memory.dmp

                Filesize

                4KB

              • memory/2948-58-0x00000000012A0000-0x00000000012FE000-memory.dmp

                Filesize

                376KB