Analysis

  • max time kernel
    5s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/08/2024, 22:55

General

  • Target
    6993ab2acc6bc12dbafdc6043d6baafaacd18e9055d04c74b1a3ae82f6573403.exe
  • Size 2.0MB
  • Sample240807-2v3acazake
  • SHA256 6993ab2acc6bc12dbafdc6043d6baafaacd18e9055d04c74b1a3ae82f6573403
  • 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.

  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • 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\6993ab2acc6bc12dbafdc6043d6baafaacd18e9055d04c74b1a3ae82f6573403.exe
    "C:\Users\Admin\AppData\Local\Temp\6993ab2acc6bc12dbafdc6043d6baafaacd18e9055d04c74b1a3ae82f6573403.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:3556
    • 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:2952
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 556
          3⤵
          • Program crash
          PID:3700
      • 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:4584
        • 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:1324
        • 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:1644
          • 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:1844
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Qd7qObVd1M0j.bat" "
            4⤵
              PID:3924
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2244
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1600
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4496
                    • 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:4916
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Q1J7RgXZMJDr.bat" "
                      6⤵
                        PID:3328
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1256
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4356
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2200
                              • 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:1372
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 2252
                            6⤵
                            • Program crash
                            PID:400
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1644 -s 2280
                        4⤵
                        • Program crash
                        PID:1076
                  • C:\Users\Admin\AppData\Local\Temp\6993ab2acc6bc12dbafdc6043d6baafaacd18e9055d04c74b1a3ae82f6573403.exe
                    "C:\Users\Admin\AppData\Local\Temp\6993ab2acc6bc12dbafdc6043d6baafaacd18e9055d04c74b1a3ae82f6573403.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:2028
                  • 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:4256
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2952 -ip 2952
                  1⤵
                    PID:1812
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1644 -ip 1644
                    1⤵
                      PID:3616
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:3016
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3612
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:3788
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3612 -s 520
                                3⤵
                                • Program crash
                                PID:1168
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3240
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:2464
                                • 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:4556
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3612 -ip 3612
                                1⤵
                                  PID:3288
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4496 -ip 4496
                                  1⤵
                                    PID:3180

                                  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

                                        Q1J7RgXZMJDr.bat

                                        • Path C:\Users\Admin\AppData\Local\Temp\Q1J7RgXZMJDr.bat
                                        • Size 208B
                                        • SHA256 f52b4f04823268e20309a6266fd394372390a7eb67e6b7996d061b53596b45ab
                                        • MD5 SHA1 SHA512

                                        Qd7qObVd1M0j.bat

                                        • Path C:\Users\Admin\AppData\Local\Temp\Qd7qObVd1M0j.bat
                                        • Size 208B
                                        • SHA256 bce2e522eda6ada2474f947b7f7189aeb4e16ac7184e8c7d505e4bc5f11a9b49
                                        • 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

                                        08-07-2024

                                        • Path C:\Users\Admin\AppData\Roaming\Logs\08-07-2024
                                        • Size 224B
                                        • SHA256 3e772a4c671db18496b98c674f92566a83e0645500513cf58b2f8e24b674194c
                                        • MD5 SHA1 SHA512

                                        08-07-2024

                                        • Path C:\Users\Admin\AppData\Roaming\Logs\08-07-2024
                                        • Size 224B
                                        • SHA256 c822e12d917912455c8b89d26f5c2002d9864f89f9585723df7a2df82a5cc403
                                        • MD5 SHA1 SHA512

                                        SystemPropertiesPerformance.exe

                                        • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                        • Size 2.0MB
                                        • SHA256 56d311425cf28177cbfb79307cd322b7480514256f7019444aad7c8cba2636fc
                                        • MD5 SHA1 SHA512 SSDEEP

                                        memory/1644-44-0x0000000006510000-0x000000000651A000-memory.dmp

                                        memory/2028-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                        memory/2028-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                        memory/2464-74-0x00000000000F0000-0x0000000000110000-memory.dmp

                                        memory/2464-80-0x00000000000F0000-0x0000000000110000-memory.dmp

                                        memory/3556-45-0x0000000001470000-0x0000000001471000-memory.dmp

                                        memory/3556-28-0x0000000001470000-0x0000000001471000-memory.dmp

                                        memory/4584-31-0x0000000000350000-0x00000000003AE000-memory.dmp

                                        memory/4584-36-0x0000000005EC0000-0x0000000005EFC000-memory.dmp

                                        memory/4584-35-0x0000000005980000-0x0000000005992000-memory.dmp

                                        memory/4584-34-0x0000000004C70000-0x0000000004CD6000-memory.dmp

                                        memory/4584-33-0x0000000004D30000-0x0000000004DC2000-memory.dmp

                                        memory/4584-32-0x00000000051A0000-0x0000000005744000-memory.dmp