Analysis

  • max time kernel
    4s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 02:04

General

  • Target

    8c5c1b53bf522600a73b0a774833d9ffd595dccb6c9d2f76dc758846ce33b594.exe

  • Size

    2.0MB

  • MD5

    f815ffdfd670a6d1a59415bfcc3b9c32

  • SHA1

    a7e268b10696a0c6a368c08318cb6401064ff9fe

  • SHA256

    8c5c1b53bf522600a73b0a774833d9ffd595dccb6c9d2f76dc758846ce33b594

  • SHA512

    bc29f86b79bbeaa2535ee9a1b322e46cea9f07e8bbce15f9229f510eb77f995288e763e2402e91d6585a79c6f5701236a501154e33805cb083b1db24d2e0038d

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYd:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y3

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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 5 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 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c5c1b53bf522600a73b0a774833d9ffd595dccb6c9d2f76dc758846ce33b594.exe
    "C:\Users\Admin\AppData\Local\Temp\8c5c1b53bf522600a73b0a774833d9ffd595dccb6c9d2f76dc758846ce33b594.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:2380
    • 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:2804
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2988
    • 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:2932
      • 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:2272
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2452
          • 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:1408
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\BfuaKr3DNZL1.bat" "
            4⤵
              PID:1624
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1988
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1560
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2964
                    • 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
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:1620
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 1440
                  4⤵
                  • Program crash
                  PID:2000
            • C:\Users\Admin\AppData\Local\Temp\8c5c1b53bf522600a73b0a774833d9ffd595dccb6c9d2f76dc758846ce33b594.exe
              "C:\Users\Admin\AppData\Local\Temp\8c5c1b53bf522600a73b0a774833d9ffd595dccb6c9d2f76dc758846ce33b594.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2872
            • 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:3016
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {954CD75A-167B-452B-8A86-43348E8174AD} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2304
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:2100
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:3048
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:1200
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:1144
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:2972
                        • 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:800

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\BfuaKr3DNZL1.bat

                      Filesize

                      208B

                      MD5

                      7deff750584fea8ae5221579e71acac6

                      SHA1

                      a1955b30db9219a68d13f3267a02da8be0caf320

                      SHA256

                      1a7ae61a9b7b1cf4813c631eb872465b5b25541ae4d04262636a6aa15190b019

                      SHA512

                      a21a53166c49f4567fd3aed96d8f199ce5901935bf13a21e2de56df0421e56cabd886f89bc417a9733bc9e7710ca8cb6fddc5b652cdda26ede17d3fd9dc14ef0

                    • C:\Users\Admin\AppData\Roaming\Logs\01-04-2025

                      Filesize

                      224B

                      MD5

                      fd6af9f188899580ddd44697c1af20a9

                      SHA1

                      b6c7cf4f46ec37ef4a3fb85bea98e16cbdbbe79d

                      SHA256

                      958ce252c3ac7a3623d3c76d01af1297ff8155dae130899c707cae2b2753ca1b

                      SHA512

                      e3b9222e91ea63a82413974bd3c8a308fba50c19dccd62151cdcf12bf9a758b7afbc3193470515aca8c4d93114e4e4328c40cab060ee9b2ba86e7ba0c7f811df

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\VRW4Z5NL.txt

                      Filesize

                      211B

                      MD5

                      49d443ef9b63e5db23752548180074eb

                      SHA1

                      bb9c70a16fada06ba0aa7bcb55c7abd782293a79

                      SHA256

                      4e91d6e7b1c83f7502a37c11cffa32e23d90d2a2737e894b2494acba24a974b3

                      SHA512

                      210126e56ab2230434e4bb2b46d93f6655857c1f430ba318c982741af1ac1670e856a2353be977282c18070f31ce254d96fd0fbeac1a5daf251cd267a455c2cb

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

                      Filesize

                      2.0MB

                      MD5

                      72bf4a2487a34d3abbe7475d3a87d6d4

                      SHA1

                      0474f95305cd2cbf3dc4ecdf501e061190209bca

                      SHA256

                      ff79a38684163e321f8caf11c3f9d06a60ebb56cb9645b79ec2e76e327aadc2b

                      SHA512

                      8b00fe1d58f2b33c131d57594b7f4e4b160ccdac84cd175b6eff023b8ee064b7df30dab17e79773ffb960c064fd51fc45b8e9f44959d0caa23534d0ebead887f

                    • \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/1200-97-0x0000000000390000-0x000000000042C000-memory.dmp

                      Filesize

                      624KB

                    • memory/1200-92-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp

                      Filesize

                      4KB

                    • memory/1200-93-0x0000000000390000-0x000000000042C000-memory.dmp

                      Filesize

                      624KB

                    • memory/2380-30-0x0000000000440000-0x0000000000441000-memory.dmp

                      Filesize

                      4KB

                    • memory/2452-106-0x0000000000BA0000-0x0000000000BFE000-memory.dmp

                      Filesize

                      376KB

                    • memory/2872-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2872-31-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2872-39-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2872-43-0x0000000000080000-0x00000000000A0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2932-54-0x0000000000800000-0x000000000085E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2964-124-0x00000000001D0000-0x000000000022E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2972-84-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2988-44-0x0000000000020000-0x0000000000021000-memory.dmp

                      Filesize

                      4KB

                    • memory/2988-47-0x0000000000410000-0x00000000004AC000-memory.dmp

                      Filesize

                      624KB

                    • memory/2988-51-0x0000000000410000-0x00000000004AC000-memory.dmp

                      Filesize

                      624KB

                    • memory/2988-46-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

                      Filesize

                      4KB