Analysis

  • max time kernel
    4s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    13-08-2024 09:37

General

  • Target

    7a0a11391c7656f29e346deadcbf2210N.exe

  • Size

    2.0MB

  • MD5

    7a0a11391c7656f29e346deadcbf2210

  • SHA1

    a3d5263fdce2f9ff4a69d09849f3e5018d0c3e07

  • SHA256

    5573f46a05ab2d681b6431bf681882fd0b73e8a38dd16cbd4156f197c11445bf

  • SHA512

    b227e41f3a5728fddbe20e497e5bab03b36376e8df886758c8bcb58d90dc292f74a88e8961dc097a63e1b2d0bcdec0f8a41468c1482030a99a99f86291464780

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYV:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y7

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 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 3 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.

  • 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a0a11391c7656f29e346deadcbf2210N.exe
    "C:\Users\Admin\AppData\Local\Temp\7a0a11391c7656f29e346deadcbf2210N.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:2976
    • 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:2348
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2688
      • 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:2768
        • 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:264
        • 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:308
          • 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:1308
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\HrSLD4WufUyY.bat" "
            4⤵
              PID:1088
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2400
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1948
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1128
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 308 -s 1476
                  4⤵
                  • Program crash
                  PID:3020
            • C:\Users\Admin\AppData\Local\Temp\7a0a11391c7656f29e346deadcbf2210N.exe
              "C:\Users\Admin\AppData\Local\Temp\7a0a11391c7656f29e346deadcbf2210N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2728
            • 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:2724
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {8B9BE7C7-F1D1-4B4F-B621-07835281EF06} S-1-5-21-3294248377-1418901787-4083263181-1000:FMEDFXFE\Admin:Interactive:[1]
            1⤵
              PID:1148
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2944
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:1972
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:748
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 160
                          4⤵
                          • Program crash
                          PID:1144
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:1764
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2128
                          • 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:344

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\HrSLD4WufUyY.bat

                        Filesize

                        208B

                        MD5

                        48db3903079fe3f600468cc6c3ea21c5

                        SHA1

                        c1422479973e8f9311113ca8cb10b91b1d56f992

                        SHA256

                        d47557dbea6608f54d70e9f54e80e84f700a0dd34f1009745f61956ec120c385

                        SHA512

                        339897610d0cd92b140530e9a22c0d8bbf26acf5e6a613067813eb73989dc41783dcefcda3b4408914c34f5ef4a6c32acb49ccfd6d71475e472cc06869e8357b

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

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\HO4PZS1S.txt

                        Filesize

                        211B

                        MD5

                        aea16bfba658a5a205d579e30bfa9045

                        SHA1

                        6a8958e09edcd6fbb6fb4c1517126fd66d5d64a0

                        SHA256

                        fada1be0f5c6f1ae44fb5615986dc4738a5b88369fd003d3b758f8b72766c2cf

                        SHA512

                        f4aa6ac1f01d9e6ecb376f2e29922bda80b4c5349f18aa221d50aa535d65285cdf11ff70215538918509133e7ed7a573ab957b40597d080ed9dc2a3bbe258b92

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

                        Filesize

                        2.0MB

                        MD5

                        dc1d42b10cde71d267906ab6bebebc15

                        SHA1

                        c6bb8de02073b01e76fe4bbdcb6d3c84fc5fda33

                        SHA256

                        ce93c6dbee4f940235eaaaaa73271bd0040ac0c44e482d31089c95727841fd52

                        SHA512

                        fada2a73a64bece6962838daadd5df4911d9fb8ffe8f309fece36f869f3b00d3022705e848d4a33192f0a8518c77faec86b9f14c23fa938fb045fa220f0ac484

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

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/308-60-0x0000000000CC0000-0x0000000000D1E000-memory.dmp

                        Filesize

                        376KB

                      • memory/1764-85-0x0000000000EC0000-0x0000000000F1E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2128-94-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2728-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2728-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2728-30-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2728-32-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2768-46-0x0000000000FA0000-0x0000000000FFE000-memory.dmp

                        Filesize

                        376KB

                      • memory/2976-41-0x0000000001090000-0x0000000001091000-memory.dmp

                        Filesize

                        4KB