Analysis

  • max time kernel
    3s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24-08-2024 01:46

General

  • Target

    5233f928b4ba5c2e6d17c16f7610bae0N.exe

  • Size

    2.0MB

  • MD5

    5233f928b4ba5c2e6d17c16f7610bae0

  • SHA1

    1690dfba34f37459a2646b3e4e9a397623de2377

  • SHA256

    8105e8ffeac0461abb81888272687f2ca4e614bfeccd92103d1d65346f4ca721

  • SHA512

    e762379da8164cb23165d6381426366d2eca11c975ec839fa1ab38aed4790b6a8be32924330472c2367ba549911281f03ab6fcbe8194e2b07afaf48025776ada

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYH: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.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • 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 1 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.

  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5233f928b4ba5c2e6d17c16f7610bae0N.exe
    "C:\Users\Admin\AppData\Local\Temp\5233f928b4ba5c2e6d17c16f7610bae0N.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:2680
    • 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:2156
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2764
      • 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:2508
        • 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
          PID:860
          • 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:1144
      • C:\Users\Admin\AppData\Local\Temp\5233f928b4ba5c2e6d17c16f7610bae0N.exe
        "C:\Users\Admin\AppData\Local\Temp\5233f928b4ba5c2e6d17c16f7610bae0N.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2256
      • 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:2888
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {3512BDA3-E8A4-4F3D-9403-A9153982CD45} S-1-5-21-2958949473-3205530200-1453100116-1000:WHMFPZKA\Admin:Interactive:[1]
      1⤵
        PID:2828
        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
          2⤵
            PID:1652

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.0MB

          MD5

          cdaac3260495e785dc380247781d58ab

          SHA1

          0608cf2cf502d3f8e1a63078856283d8d4663a5d

          SHA256

          4759c85c6461d4d3616b7c74287e2120e6c0dfe367a6b1cab5d88e2efe325fbd

          SHA512

          47cb428ef78c2c12d5a3d5054f6ee594c0279ea2743b8d19ab9f7022e7ecb3234ebc53a7697dd3a93f4bf990f3bcf9dd117135282a692522d21b687488b0e87e

        • \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/860-58-0x0000000001130000-0x000000000118E000-memory.dmp

          Filesize

          376KB

        • memory/2256-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/2256-42-0x00000000000C0000-0x00000000000E0000-memory.dmp

          Filesize

          128KB

        • memory/2256-32-0x00000000000C0000-0x00000000000E0000-memory.dmp

          Filesize

          128KB

        • memory/2256-30-0x00000000000C0000-0x00000000000E0000-memory.dmp

          Filesize

          128KB

        • memory/2508-46-0x0000000000CB0000-0x0000000000D0E000-memory.dmp

          Filesize

          376KB

        • memory/2680-29-0x0000000000630000-0x0000000000631000-memory.dmp

          Filesize

          4KB