Analysis

  • max time kernel
    2s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2024 01:22

General

  • Target

    aa3d719f0422f7082031d3191eb50a835ce468b048157ad3629167c7608d8eee.exe

  • Size

    2.0MB

  • MD5

    19817ae9895ff03ecea44c7e94f6a899

  • SHA1

    61d3d540221fb6e9c41963067f3f495cdcf7370b

  • SHA256

    aa3d719f0422f7082031d3191eb50a835ce468b048157ad3629167c7608d8eee

  • SHA512

    2fd239d86e6b21cd8081dfb943337b1e49685ef90abb01e58e9a40523f9db0d6c19e9b33be43208de6f45a7e9522259d3165e429317b9fdbd42cd0e995e1116a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY2:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YY

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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

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 6 IoCs
  • Loads dropped DLL 18 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.

  • Suspicious use of SetThreadContext 4 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 7 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa3d719f0422f7082031d3191eb50a835ce468b048157ad3629167c7608d8eee.exe
    "C:\Users\Admin\AppData\Local\Temp\aa3d719f0422f7082031d3191eb50a835ce468b048157ad3629167c7608d8eee.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:2668
    • 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:2520
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2964
    • 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:2676
      • 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:2644
      • 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:1668
        • 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:1296
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\ymnE4SkcFtZS.bat" "
          4⤵
            PID:2464
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:1604
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:908
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 1512
              4⤵
              • Program crash
              PID:2956
        • C:\Users\Admin\AppData\Local\Temp\aa3d719f0422f7082031d3191eb50a835ce468b048157ad3629167c7608d8eee.exe
          "C:\Users\Admin\AppData\Local\Temp\aa3d719f0422f7082031d3191eb50a835ce468b048157ad3629167c7608d8eee.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:2904

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        405KB

        MD5

        b8ba87ee4c3fc085a2fed0d839aadce1

        SHA1

        b3a2e3256406330e8b1779199bb2b9865122d766

        SHA256

        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

        SHA512

        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

      • C:\Users\Admin\AppData\Local\Temp\ymnE4SkcFtZS.bat

        Filesize

        208B

        MD5

        aaeee11f5a4e7665f890c70cbc591d48

        SHA1

        427e6f815e70e53ea8373d3a23c41d8e2976e346

        SHA256

        0d6f41c2f2683177865786197443150fa55756e87e58d2679a7d79e1c59b195f

        SHA512

        9d1c81b7ce2ebdc2e2155d57d120b580bbdb219d0fad0191cb46c9cf16673676eb68f88c1593e934f4d3c2765388fb49b17fa6be01a743f88e5600793b71109e

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

        Filesize

        349KB

        MD5

        b4a202e03d4135484d0e730173abcc72

        SHA1

        01b30014545ea526c15a60931d676f9392ea0c70

        SHA256

        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

        SHA512

        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

      • memory/1668-62-0x0000000000250000-0x00000000002AE000-memory.dmp

        Filesize

        376KB

      • memory/1668-62-0x0000000000250000-0x00000000002AE000-memory.dmp

        Filesize

        376KB

      • memory/2668-66-0x00000000006B0000-0x00000000006B1000-memory.dmp

        Filesize

        4KB

      • memory/2668-43-0x00000000006B0000-0x00000000006B1000-memory.dmp

        Filesize

        4KB

      • memory/2668-43-0x00000000006B0000-0x00000000006B1000-memory.dmp

        Filesize

        4KB

      • memory/2668-66-0x00000000006B0000-0x00000000006B1000-memory.dmp

        Filesize

        4KB

      • memory/2676-46-0x0000000001190000-0x00000000011EE000-memory.dmp

        Filesize

        376KB

      • memory/2676-46-0x0000000001190000-0x00000000011EE000-memory.dmp

        Filesize

        376KB

      • memory/2828-28-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2828-30-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2828-40-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2828-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        Filesize

        4KB

      • memory/2828-40-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2828-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        Filesize

        4KB

      • memory/2828-30-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2828-28-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2964-54-0x0000000000470000-0x000000000050C000-memory.dmp

        Filesize

        624KB

      • memory/2964-47-0x0000000000020000-0x0000000000021000-memory.dmp

        Filesize

        4KB

      • memory/2964-47-0x0000000000020000-0x0000000000021000-memory.dmp

        Filesize

        4KB

      • memory/2964-49-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

        Filesize

        4KB

      • memory/2964-50-0x0000000000470000-0x000000000050C000-memory.dmp

        Filesize

        624KB

      • memory/2964-54-0x0000000000470000-0x000000000050C000-memory.dmp

        Filesize

        624KB

      • memory/2964-49-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

        Filesize

        4KB

      • memory/2964-50-0x0000000000470000-0x000000000050C000-memory.dmp

        Filesize

        624KB