Analysis

  • max time kernel
    3s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2024 10:11

General

  • Target

    451d0f9d77c31129f271d062425abb50N.exe

  • Size

    2.0MB

  • MD5

    451d0f9d77c31129f271d062425abb50

  • SHA1

    71750713e968cffc9c53743dde99dfa909389933

  • SHA256

    8cb956bcc3afb6feb498b80112700b4cd124b5de71d90d87cbf6eebd0d371da5

  • SHA512

    54001281e47c5722c8470cbabdb1963cb0426e16a43510eea993e755b8ebbadb2224f27068105787c099074902298033a38e2a72bdfbbb4e5d7a85578de2427f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYd:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YH

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 4 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 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 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 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.exe
    "C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.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:2352
    • 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:2028
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1628
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2872
      • 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:2784
        • 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:2788
        • 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:444
          • 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:300
      • C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.exe
        "C:\Users\Admin\AppData\Local\Temp\451d0f9d77c31129f271d062425abb50N.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2808
      • 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:2612
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {3075D3B3-6431-4818-B11A-5C1C18C25F3F} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2704
        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
          3⤵
            PID:2180
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k
              4⤵
                PID:2176
            • C:\Users\Admin\AppData\Local\Temp\windef.exe
              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
              3⤵
                PID:2192
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                3⤵
                  PID:1736
                • 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:1884

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

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

              Filesize

              2.0MB

              MD5

              f17f182ad8fa3f9dcbc84f8b75950aee

              SHA1

              32502cfb856c52465f7386b2a198bd0d7342d70b

              SHA256

              05bb7c19eb9e0d131175d516667abec27ffb209bd2d032facdaa4ae523226ae6

              SHA512

              aeb8302425a660177680970acd019ea176fae820e700d4f9457a7e433e53f39e65d2f87b4dad20932bcc8c91aa0e6fdc7ff0c2a848cadafccc261491fc91bf90

            • \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/444-59-0x0000000000DB0000-0x0000000000E0E000-memory.dmp

              Filesize

              376KB

            • memory/1736-100-0x0000000000080000-0x00000000000A0000-memory.dmp

              Filesize

              128KB

            • memory/1736-92-0x0000000000080000-0x00000000000A0000-memory.dmp

              Filesize

              128KB

            • memory/1736-95-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

              Filesize

              4KB

            • memory/2176-86-0x0000000000250000-0x00000000002EC000-memory.dmp

              Filesize

              624KB

            • memory/2176-82-0x0000000000020000-0x0000000000021000-memory.dmp

              Filesize

              4KB

            • memory/2176-84-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp

              Filesize

              4KB

            • memory/2176-102-0x0000000000250000-0x00000000002EC000-memory.dmp

              Filesize

              624KB

            • memory/2192-101-0x0000000001000000-0x000000000105E000-memory.dmp

              Filesize

              376KB

            • memory/2352-30-0x0000000000340000-0x0000000000341000-memory.dmp

              Filesize

              4KB

            • memory/2784-45-0x00000000000B0000-0x000000000010E000-memory.dmp

              Filesize

              376KB

            • memory/2808-31-0x00000000004D0000-0x00000000004F0000-memory.dmp

              Filesize

              128KB

            • memory/2808-32-0x00000000004D0000-0x00000000004F0000-memory.dmp

              Filesize

              128KB

            • memory/2808-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

              Filesize

              4KB

            • memory/2808-42-0x00000000004D0000-0x00000000004F0000-memory.dmp

              Filesize

              128KB