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Analysis

  • max time kernel
    1s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/01/2025, 14:28

General

  • Target

    71948ac73dfad272dd14ec952a83a7249c6168fe1f1d3524c9b8be9998eee6c6N.exe

  • Size

    2.0MB

  • MD5

    2c1d19398b1feb8014340cf5c3af3080

  • SHA1

    d9276ccf1d0daabca47bc24dc0905c2dd09c459d

  • SHA256

    71948ac73dfad272dd14ec952a83a7249c6168fe1f1d3524c9b8be9998eee6c6

  • SHA512

    72839ff67127f7f8702145d3013f8fc77a6625722249dad10ed0d7254d680e4f032a168dd50b72b04489b04b1e6f7bab8207fbb79dcaee9b9571a55607e03fa2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYZ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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 2 IoCs
  • Loads dropped DLL 11 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 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71948ac73dfad272dd14ec952a83a7249c6168fe1f1d3524c9b8be9998eee6c6N.exe
    "C:\Users\Admin\AppData\Local\Temp\71948ac73dfad272dd14ec952a83a7249c6168fe1f1d3524c9b8be9998eee6c6N.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:2784
    • 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:2416
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:1920
      • 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
        PID:2840
        • 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⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1644
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:924
            • 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:1900
        • C:\Users\Admin\AppData\Local\Temp\71948ac73dfad272dd14ec952a83a7249c6168fe1f1d3524c9b8be9998eee6c6N.exe
          "C:\Users\Admin\AppData\Local\Temp\71948ac73dfad272dd14ec952a83a7249c6168fe1f1d3524c9b8be9998eee6c6N.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:480
        • 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:2608
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {252A763F-8467-4DBA-8726-F078DD8C051F} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
        1⤵
          PID:1212
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
              PID:1676
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                3⤵
                  PID:2972
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    4⤵
                      PID:2212

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

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

                Filesize

                2.0MB

                MD5

                1a353dfd5ebcb0134230ac328cef0f43

                SHA1

                fd2e60eeef038e7f3081873dd3d7c6f422608398

                SHA256

                062ee21b3b5733ecf541bc58be21f5026eaf735ee834de56a3d1722725d6b389

                SHA512

                c5d586bd25950933066d46f84f12392051cc9ffdef6876d1cf6ab22d9721215b555ff77d6716dc3f9d9ed427457cbaeca8825fefadbdecc7cafd6755ba809c4c

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

                Filesize

                405KB

                MD5

                b8ba87ee4c3fc085a2fed0d839aadce1

                SHA1

                b3a2e3256406330e8b1779199bb2b9865122d766

                SHA256

                4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                SHA512

                7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                Filesize

                349KB

                MD5

                b4a202e03d4135484d0e730173abcc72

                SHA1

                01b30014545ea526c15a60931d676f9392ea0c70

                SHA256

                7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                SHA512

                632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

              • memory/480-43-0x00000000000C0000-0x00000000000E0000-memory.dmp

                Filesize

                128KB

              • memory/480-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/480-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

                Filesize

                128KB

              • memory/480-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

                Filesize

                128KB

              • memory/924-60-0x0000000000DA0000-0x0000000000DFE000-memory.dmp

                Filesize

                376KB

              • memory/2784-30-0x0000000002690000-0x0000000002691000-memory.dmp

                Filesize

                4KB

              • memory/2840-46-0x00000000011E0000-0x000000000123E000-memory.dmp

                Filesize

                376KB