Analysis

  • max time kernel
    4s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2024 19:27

General

  • Target

    2286022158c06d125069d9b67bf9cd92103ded9766a34223eec22d4afbea8098.exe

  • Size

    2.0MB

  • MD5

    6455707048e4074c71d0b58d63f2c485

  • SHA1

    fca6aebb1eaac4e375647613fddf0e44d86b50be

  • SHA256

    2286022158c06d125069d9b67bf9cd92103ded9766a34223eec22d4afbea8098

  • SHA512

    d359d45dcd469a4e103ac043989111eeceda0ccdd1a05d5915a747f666187c323ad3b95e96188f98c5c49dd3df94ba4e8735e794e1cfaf104d46d5437579e2f6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYy:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YM

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 5 IoCs
  • Loads dropped DLL 19 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 10 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2286022158c06d125069d9b67bf9cd92103ded9766a34223eec22d4afbea8098.exe
    "C:\Users\Admin\AppData\Local\Temp\2286022158c06d125069d9b67bf9cd92103ded9766a34223eec22d4afbea8098.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:2576
    • 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:1012
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2944
      • 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:2820
        • 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:1228
        • 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:596
          • 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:1888
      • C:\Users\Admin\AppData\Local\Temp\2286022158c06d125069d9b67bf9cd92103ded9766a34223eec22d4afbea8098.exe
        "C:\Users\Admin\AppData\Local\Temp\2286022158c06d125069d9b67bf9cd92103ded9766a34223eec22d4afbea8098.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2828
      • 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:2764
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {4877AB71-A767-4299-BE18-DD977263574A} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:852
        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2892
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k
            4⤵
              PID:2124
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 160
              4⤵
              • Program crash
              PID:1160
          • C:\Users\Admin\AppData\Local\Temp\windef.exe
            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
            3⤵
              PID:2860
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
              3⤵
                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
                3⤵
                • Scheduled Task/Job: Scheduled Task
                PID:2308

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\3HD79LGM.txt

            Filesize

            209B

            MD5

            7fa36fbd20d0952b51296a5518543e16

            SHA1

            65b404df24b5899085df15ebc42f1e48e5cc704d

            SHA256

            6f625ccdf0d4d5eb58ff4bbd96d728fb3e308b26f2cb49fcdf015dc806747ce3

            SHA512

            12c71036fdfb2d76690420daa74c4e4cd4a9f8ae306340565054982c91ccf5c7af907d33aa7997b6beb9402f43ee75ed654b26bb96af22565cfa52c3c33d6759

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

            Filesize

            2.0MB

            MD5

            0ebeefe1af50c584d7bc2418afa9f0a3

            SHA1

            441c98c4f3d0120ce4bb657c4040911d885cae1e

            SHA256

            098469643cb190784bde7f49fdaed4ccd6ce696001665cda98ca7f94bf510382

            SHA512

            88ef85443b99c1a41acfa55c4177feefdef6c13c493d7d5e7864d7ec48b19a5f30ec92ad53684b96a573aea6842107208e287c128d56c60283e9f2258f94065e

          • \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/596-58-0x0000000000150000-0x00000000001AE000-memory.dmp

            Filesize

            376KB

          • memory/2344-88-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2576-30-0x0000000001200000-0x0000000001201000-memory.dmp

            Filesize

            4KB

          • memory/2820-45-0x00000000003C0000-0x000000000041E000-memory.dmp

            Filesize

            376KB

          • memory/2828-42-0x00000000000C0000-0x00000000000E0000-memory.dmp

            Filesize

            128KB

          • memory/2828-31-0x00000000000C0000-0x00000000000E0000-memory.dmp

            Filesize

            128KB

          • memory/2828-32-0x00000000000C0000-0x00000000000E0000-memory.dmp

            Filesize

            128KB

          • memory/2828-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

            Filesize

            4KB

          • memory/2860-94-0x0000000000EB0000-0x0000000000F0E000-memory.dmp

            Filesize

            376KB