Analysis

  • max time kernel
    5s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2024, 04:02

General

  • Target
    833b1ec3199c6a6c2bc220dcf02d39bb553eed6fc34a843e6266566c033811eb.exe
  • Size 2.0MB
  • Sample241203-elyjgavmdn
  • SHA256 833b1ec3199c6a6c2bc220dcf02d39bb553eed6fc34a843e6266566c033811eb
  • 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\833b1ec3199c6a6c2bc220dcf02d39bb553eed6fc34a843e6266566c033811eb.exe
    "C:\Users\Admin\AppData\Local\Temp\833b1ec3199c6a6c2bc220dcf02d39bb553eed6fc34a843e6266566c033811eb.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:1796
    • 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:4512
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2080
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 548
          3⤵
          • Program crash
          PID:2152
      • 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:1244
        • 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:4088
        • 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:340
          • 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:3188
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0N7RjMwxBkB2.bat" "
            4⤵
              PID:4460
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2548
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4292
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1048
                    • 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:1868
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\H3ikBnxZVvJ0.bat" "
                      6⤵
                        PID:2508
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1912
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2604
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2188
                              • 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:2044
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 2236
                            6⤵
                            • Program crash
                            PID:3292
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 340 -s 1752
                        4⤵
                        • Program crash
                        PID:2864
                  • C:\Users\Admin\AppData\Local\Temp\833b1ec3199c6a6c2bc220dcf02d39bb553eed6fc34a843e6266566c033811eb.exe
                    "C:\Users\Admin\AppData\Local\Temp\833b1ec3199c6a6c2bc220dcf02d39bb553eed6fc34a843e6266566c033811eb.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4288
                  • 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:668
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4512 -ip 4512
                  1⤵
                    PID:228
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 340 -ip 340
                    1⤵
                      PID:4560
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:2072
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3792
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:1820
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3792 -s 520
                                3⤵
                                • Program crash
                                PID:560
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:2144
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4512
                                • 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:3680
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3792 -ip 3792
                                1⤵
                                  PID:4112
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1048 -ip 1048
                                  1⤵
                                    PID:4324
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4092

                                    Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          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

                                          0N7RjMwxBkB2.bat

                                          • Path C:\Users\Admin\AppData\Local\Temp\0N7RjMwxBkB2.bat
                                          • Size 208B
                                          • SHA256 7c3933a981599a5115829258fe8dcfb677d80b61779bbece88ca3da8f8495c8e
                                          • MD5 SHA1 SHA512

                                          H3ikBnxZVvJ0.bat

                                          • Path C:\Users\Admin\AppData\Local\Temp\H3ikBnxZVvJ0.bat
                                          • Size 208B
                                          • SHA256 db1bec26fa0bda9e1348f416c6f5d88e953154f4a3ff44a304d6c663a85d3202
                                          • MD5 SHA1 SHA512

                                          vnc.exe

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

                                          windef.exe

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

                                          12-03-2024

                                          • Path C:\Users\Admin\AppData\Roaming\Logs\12-03-2024
                                          • Size 224B
                                          • SHA256 a98036feca7504f0035a1eb8684c6af1dfe52bb9b1f98d5100cdc6af6ec6be9f
                                          • MD5 SHA1 SHA512

                                          12-03-2024

                                          • Path C:\Users\Admin\AppData\Roaming\Logs\12-03-2024
                                          • Size 224B
                                          • SHA256 f86a5acb61d3f3914f72d9b50257faceb188dd02bb05e07355b6a4928e866082
                                          • MD5 SHA1 SHA512

                                          SystemPropertiesPerformance.exe

                                          • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                          • Size 2.0MB
                                          • SHA256 30e2317833f26fa4fe3fd193093905649a7878056cb5b0eea116abdb2bfdd622
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/340-44-0x0000000006420000-0x000000000642A000-memory.dmp

                                          memory/1244-36-0x00000000064B0000-0x00000000064EC000-memory.dmp

                                          memory/1244-35-0x00000000058C0000-0x00000000058D2000-memory.dmp

                                          memory/1244-34-0x00000000052B0000-0x0000000005316000-memory.dmp

                                          memory/1244-33-0x0000000005330000-0x00000000053C2000-memory.dmp

                                          memory/1244-32-0x00000000058E0000-0x0000000005E84000-memory.dmp

                                          memory/1244-31-0x0000000000940000-0x000000000099E000-memory.dmp

                                          memory/1796-19-0x0000000003B40000-0x0000000003B41000-memory.dmp

                                          memory/4288-20-0x0000000000A90000-0x0000000000AB0000-memory.dmp

                                          memory/4288-28-0x0000000000A90000-0x0000000000AB0000-memory.dmp

                                          memory/4512-70-0x00000000009E0000-0x0000000000A00000-memory.dmp

                                          memory/4512-76-0x00000000009E0000-0x0000000000A00000-memory.dmp