Analysis

  • max time kernel
    3s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    12-08-2024 22:41

General

  • Target

    dea3e9019314af87c0148da2964bf0c0N.exe

  • Size

    2.0MB

  • MD5

    dea3e9019314af87c0148da2964bf0c0

  • SHA1

    36dd83e33d695e466580c1c3da291888dede02d3

  • SHA256

    42b931b3f31f74bc6f949cd225641bd536197ebaaa7ce65701bfeb2a4cb8ea64

  • SHA512

    8208bf48f68010fb48114343317073f138d8a152c70dc291050d83d589f1aba89dc45be3197a1d5ef3fcad2ff43bdcd492067c15e8bcfaf057f162c8cf726814

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYp:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yz

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 2 IoCs
  • Loads dropped DLL 8 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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 4 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 WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dea3e9019314af87c0148da2964bf0c0N.exe
    "C:\Users\Admin\AppData\Local\Temp\dea3e9019314af87c0148da2964bf0c0N.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:2432
    • 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:2252
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2748
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2800
      • 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⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2276
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2492
          • 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:1580
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\5rSIxCheqxOW.bat" "
            4⤵
              PID:1564
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1936
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1760
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:524
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 1508
                  4⤵
                  • Program crash
                  PID:1844
            • C:\Users\Admin\AppData\Local\Temp\dea3e9019314af87c0148da2964bf0c0N.exe
              "C:\Users\Admin\AppData\Local\Temp\dea3e9019314af87c0148da2964bf0c0N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2804
            • 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:2656
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {453DBCF0-BB66-4227-B72A-6231ADE2A5B1} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:2136
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2508
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:2004
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2148
                      • 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:928
                          • 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:1248

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\5rSIxCheqxOW.bat

                        Filesize

                        208B

                        MD5

                        6b05c7013667e9a6c646e8e0efeec505

                        SHA1

                        e68bf3f58194a85c176abbbcc72d431ca3181912

                        SHA256

                        3f3c19b5bdb49e69174ce98281e9a58e38f0ca57df13b51352b4cfcdb96037e4

                        SHA512

                        c943a3a1434967190c85e2a6ebc9716e51306cef57c28b0f7f9c22ae254a16beca96a48856d987bf47889d2915baaddc032c68641e7215eca6440a74f2382be3

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\PAG5QZJL.txt

                        Filesize

                        211B

                        MD5

                        4b9a4abc5a73ea0bd35147c363a53b44

                        SHA1

                        ce2c07cde59fd659ae6713e2cd72383062858524

                        SHA256

                        3bef5489e95a43321c9265178e6e45a40b15b5a4877549dc47265b21d9568bbc

                        SHA512

                        dbf92da91a5a2ffdf38702165f9e60e02e887a09722dc81f5075d40414fe5c583760476f750df31cd9f914f8ce30f7c535ea987e9c535419efafa5007c19e99e

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

                        Filesize

                        2.0MB

                        MD5

                        fbc2b67c7ccf2a57a178e9408e20c68a

                        SHA1

                        18df7a46912b166abdb46f800d0cbf0edaf6f7f2

                        SHA256

                        c5fbbc88407122b9c212315a44f9d5ccf7b698205b3b605bddf5b386dd70bc43

                        SHA512

                        0135880d60807206a58b3c0622e149e40cf35cf4e78f9da622a9649cb904134a96736f3cdbc275c7ced613aacc1225985a87aab7149138dfc967f03b3e78c183

                      • \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/928-115-0x00000000000D0000-0x00000000000F0000-memory.dmp

                        Filesize

                        128KB

                      • memory/928-103-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/928-100-0x00000000000D0000-0x00000000000F0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2148-110-0x0000000000290000-0x000000000032C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2148-108-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

                        Filesize

                        4KB

                      • memory/2192-116-0x00000000012D0000-0x000000000132E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2432-30-0x0000000000260000-0x0000000000261000-memory.dmp

                        Filesize

                        4KB

                      • memory/2492-64-0x0000000000EA0000-0x0000000000EFE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2748-53-0x0000000000390000-0x000000000042C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2748-47-0x0000000000390000-0x000000000042C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2748-44-0x00000000000D0000-0x00000000000D1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2748-46-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

                        Filesize

                        4KB

                      • memory/2800-54-0x0000000000100000-0x000000000015E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2804-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2804-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2804-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2804-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB