Analysis

  • max time kernel
    5s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2025, 04:46

General

  • Target
    90697c15fc6345c4d6c08c7e3411678a2b44db098907739000ed7ad53ea55375.exe
  • Size 2.0MB
  • Sample250123-fdyd6stram
  • SHA256 90697c15fc6345c4d6c08c7e3411678a2b44db098907739000ed7ad53ea55375
  • MD5 SHA1 SHA512 SSDEEP

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 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 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 2 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 4 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 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90697c15fc6345c4d6c08c7e3411678a2b44db098907739000ed7ad53ea55375.exe
    "C:\Users\Admin\AppData\Local\Temp\90697c15fc6345c4d6c08c7e3411678a2b44db098907739000ed7ad53ea55375.exe"
    1⤵
    • Quasar RAT
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2512
    • 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:5100
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:220
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 548
          3⤵
          • Program crash
          PID:2812
      • 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
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4604
        • 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:4904
        • 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:2184
          • 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:3428
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\wIucsTGfrfi5.bat" "
            4⤵
              PID:4920
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2908
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3596
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3548
                    • 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:3388
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AObcfVJR3yHa.bat" "
                      6⤵
                        PID:208
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1516
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2368
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2380
                              • 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
                                8⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:4028
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 2008
                            6⤵
                            • Program crash
                            PID:868
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 2004
                        4⤵
                        • Program crash
                        PID:1628
                  • C:\Users\Admin\AppData\Local\Temp\90697c15fc6345c4d6c08c7e3411678a2b44db098907739000ed7ad53ea55375.exe
                    "C:\Users\Admin\AppData\Local\Temp\90697c15fc6345c4d6c08c7e3411678a2b44db098907739000ed7ad53ea55375.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:3452
                  • 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:1144
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5100 -ip 5100
                  1⤵
                    PID:4916
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2184 -ip 2184
                    1⤵
                      PID:3748
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:2308
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3172
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:3468
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3172 -s 520
                                3⤵
                                • Program crash
                                PID:4116
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4824
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:1352
                                • 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⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:4404
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3172 -ip 3172
                                1⤵
                                  PID:3696
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3548 -ip 3548
                                  1⤵
                                    PID:1624
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4704
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:1112
                                      • C:\Windows\system32\sihost.exe
                                        sihost.exe
                                        1⤵
                                          PID:8

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              windef.exe.log

                                              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log
                                              • Size 1KB
                                              • SHA256 f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928
                                              • MD5 SHA1 SHA512

                                              AObcfVJR3yHa.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\AObcfVJR3yHa.bat
                                              • Size 208B
                                              • SHA256 6e8fd99abf767f7540f3abca02c265a3ed558290e8c65cfbda9fce2c82c37a1e
                                              • MD5 SHA1 SHA512

                                              vnc.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\vnc.exe
                                              • Size 405KB
                                              • SHA256 4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
                                              • MD5 SHA1 SHA512 SSDEEP

                                              wIucsTGfrfi5.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\wIucsTGfrfi5.bat
                                              • Size 208B
                                              • SHA256 0e69e525bafceeb3dd7584a77e1e81d6a255b7bb4015321349535b07f36593cd
                                              • MD5 SHA1 SHA512

                                              windef.exe

                                              • Path C:\Users\Admin\AppData\Local\Temp\windef.exe
                                              • Size 349KB
                                              • SHA256 7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
                                              • MD5 SHA1 SHA512 SSDEEP

                                              01-23-2025

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\01-23-2025
                                              • Size 224B
                                              • SHA256 943e7865278eaa9cb599966dfa673ff22223fc5a2eb5f62f42790d3b0ffbd0e3
                                              • MD5 SHA1 SHA512

                                              01-23-2025

                                              • Path C:\Users\Admin\AppData\Roaming\Logs\01-23-2025
                                              • Size 224B
                                              • SHA256 304c6285af98ca56eed4f9af08ae76a163b96ae390b1dddf323403e5900718b6
                                              • MD5 SHA1 SHA512

                                              SystemPropertiesPerformance.exe

                                              • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                              • Size 2.0MB
                                              • SHA256 0c1a9fb6bdfeeacbbd0016a79e1382d2401fc57206c245f9beaf6d178ec6936a
                                              • MD5 SHA1 SHA512 SSDEEP

                                              memory/2184-44-0x00000000061D0000-0x00000000061DA000-memory.dmp

                                              memory/2512-19-0x0000000003F30000-0x0000000003F31000-memory.dmp

                                              memory/3452-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                              memory/3452-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                              memory/4604-36-0x0000000006230000-0x000000000626C000-memory.dmp

                                              memory/4604-35-0x0000000005CF0000-0x0000000005D02000-memory.dmp

                                              memory/4604-34-0x0000000005010000-0x0000000005076000-memory.dmp

                                              memory/4604-33-0x0000000004F70000-0x0000000005002000-memory.dmp

                                              memory/4604-32-0x0000000005420000-0x00000000059C4000-memory.dmp

                                              memory/4604-31-0x0000000000480000-0x00000000004DE000-memory.dmp