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Analysis

  • max time kernel
    4s
  • max time network
    115s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24/01/2025, 08:44

General

  • Target

    8f7b9603ed86d72e6617b451febb4b7f5028d0d6d76893bf4cfc596491b380c2.exe

  • Size

    2.0MB

  • MD5

    6fb6c869d361435b7bcc7d6840091313

  • SHA1

    ebac7d02cc59763b197ccfc5e5b160cd679b3b47

  • SHA256

    8f7b9603ed86d72e6617b451febb4b7f5028d0d6d76893bf4cfc596491b380c2

  • SHA512

    ca13de11891b17999eae87e7a87b071be8fd6da723c82ec695ee679ce60d50b161d9987a2659bd0db743319c936f9430b0d35ba08f59951ded12a3059cfb0baf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYB:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yb

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 9 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f7b9603ed86d72e6617b451febb4b7f5028d0d6d76893bf4cfc596491b380c2.exe
    "C:\Users\Admin\AppData\Local\Temp\8f7b9603ed86d72e6617b451febb4b7f5028d0d6d76893bf4cfc596491b380c2.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:2452
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2112
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1856
    • 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:1964
      • 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:2640
      • 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:680
        • 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:2684
    • C:\Users\Admin\AppData\Local\Temp\8f7b9603ed86d72e6617b451febb4b7f5028d0d6d76893bf4cfc596491b380c2.exe
      "C:\Users\Admin\AppData\Local\Temp\8f7b9603ed86d72e6617b451febb4b7f5028d0d6d76893bf4cfc596491b380c2.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2344
    • 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:2756
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {09BC6EFE-0084-4B81-B2CD-AAAD3526985A} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
    1⤵
      PID:1660
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        2⤵
          PID:2324
          • C:\Users\Admin\AppData\Local\Temp\vnc.exe
            "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
            3⤵
              PID:1060
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k
                4⤵
                  PID:2108
              • C:\Users\Admin\AppData\Local\Temp\windef.exe
                "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                3⤵
                  PID:1768
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                  3⤵
                    PID:444

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

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

                Filesize

                2.0MB

                MD5

                b9ad28bbe4e1233a28c4b78f68f06d4a

                SHA1

                3762cf4e96a418451c21654cb5d819dbab1e80cf

                SHA256

                d388716d5f528e5276e500b595fd3192e69f21d8221a3aa1201b41ad72088923

                SHA512

                ef486616720bbdd314c6d015833ddefacdb829e8911976c2a654fb496548acd10972d5b2a69fce27503a91dd611ae1f10a59bc8ea53ac6a4c674af941d3a2d86

              • \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/444-104-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/680-63-0x0000000000C10000-0x0000000000C6E000-memory.dmp

                Filesize

                376KB

              • memory/1856-55-0x00000000001A0000-0x000000000023C000-memory.dmp

                Filesize

                624KB

              • memory/1856-50-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

                Filesize

                4KB

              • memory/1856-48-0x0000000000020000-0x0000000000021000-memory.dmp

                Filesize

                4KB

              • memory/1856-51-0x00000000001A0000-0x000000000023C000-memory.dmp

                Filesize

                624KB

              • memory/1964-30-0x000000007416E000-0x000000007416F000-memory.dmp

                Filesize

                4KB

              • memory/1964-31-0x0000000000870000-0x00000000008CE000-memory.dmp

                Filesize

                376KB

              • memory/2344-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2344-35-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2344-41-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                Filesize

                4KB

              • memory/2344-45-0x0000000000080000-0x00000000000A0000-memory.dmp

                Filesize

                128KB

              • memory/2452-32-0x0000000000D40000-0x0000000000D41000-memory.dmp

                Filesize

                4KB