Analysis

  • max time kernel
    4s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2025, 04:35

General

  • Target
    c1f0ecfd3774383b24916124901636d6de84eb0af364db54712329f6fff50c79.exe
  • Size 2.0MB
  • Sample250121-e7skcawrbq
  • SHA256 c1f0ecfd3774383b24916124901636d6de84eb0af364db54712329f6fff50c79
  • 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

    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 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 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 5 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 WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1f0ecfd3774383b24916124901636d6de84eb0af364db54712329f6fff50c79.exe
    "C:\Users\Admin\AppData\Local\Temp\c1f0ecfd3774383b24916124901636d6de84eb0af364db54712329f6fff50c79.exe"
    1⤵
    • 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:5048
    • 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:412
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 412 -s 552
          3⤵
          • Program crash
          PID:3288
      • 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:3040
        • 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:5000
        • 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 WriteProcessMemory
          PID:964
          • 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:3616
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ehhBG5PLdR1m.bat" "
            4⤵
              PID:4512
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3160
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1548
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3260
                    • 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:2132
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VY79yUVZFowB.bat" "
                      6⤵
                        PID:1372
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2008
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3572
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3260 -s 1968
                          6⤵
                          • Program crash
                          PID:4448
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 2240
                      4⤵
                      • Program crash
                      PID:4240
                • C:\Users\Admin\AppData\Local\Temp\c1f0ecfd3774383b24916124901636d6de84eb0af364db54712329f6fff50c79.exe
                  "C:\Users\Admin\AppData\Local\Temp\c1f0ecfd3774383b24916124901636d6de84eb0af364db54712329f6fff50c79.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:664
                • 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:4540
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 412 -ip 412
                1⤵
                  PID:3544
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 964 -ip 964
                  1⤵
                    PID:2912
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:4548
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4752
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2400
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 520
                              3⤵
                              • Program crash
                              PID:896
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:4584
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2264
                              • 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:4496
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 4752 -ip 4752
                              1⤵
                                PID:3472
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3260 -ip 3260
                                1⤵
                                  PID:4960
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:3428
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3412

                                    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

                                          VY79yUVZFowB.bat

                                          • Path C:\Users\Admin\AppData\Local\Temp\VY79yUVZFowB.bat
                                          • Size 208B
                                          • SHA256 e0822789c0d7fb96a1232fa9d40947448995ac9efa13b61df6e3b98e528edf7f
                                          • MD5 SHA1 SHA512

                                          ehhBG5PLdR1m.bat

                                          • Path C:\Users\Admin\AppData\Local\Temp\ehhBG5PLdR1m.bat
                                          • Size 208B
                                          • SHA256 3c19df362969996b60d3f4cb705ebbd1d119dc79dcdbc70f03596dc239c9a0ab
                                          • 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

                                          01-21-2025

                                          • Path C:\Users\Admin\AppData\Roaming\Logs\01-21-2025
                                          • Size 224B
                                          • SHA256 3c7e0b8503417889953c4f864cb0e604f9575f08f2a59b505d468038d811b881
                                          • MD5 SHA1 SHA512

                                          SystemPropertiesPerformance.exe

                                          • Path C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                          • Size 2.0MB
                                          • SHA256 d60d09899606fd66f7d1a16d41c1f2c6c9a0f48d00e6e6e2a43c0bbcd3d7db7c
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/664-29-0x0000000000300000-0x0000000000320000-memory.dmp

                                          memory/664-22-0x0000000000300000-0x0000000000320000-memory.dmp

                                          memory/964-45-0x0000000006C60000-0x0000000006C6A000-memory.dmp

                                          memory/2264-74-0x0000000000400000-0x0000000000420000-memory.dmp

                                          memory/2264-80-0x0000000000400000-0x0000000000420000-memory.dmp

                                          memory/3040-34-0x0000000005240000-0x00000000052D2000-memory.dmp

                                          memory/3040-35-0x00000000052E0000-0x0000000005346000-memory.dmp

                                          memory/3040-36-0x0000000005790000-0x00000000057A2000-memory.dmp

                                          memory/3040-37-0x0000000006480000-0x00000000064BC000-memory.dmp

                                          memory/3040-33-0x00000000057F0000-0x0000000005D94000-memory.dmp

                                          memory/3040-30-0x00000000007C0000-0x000000000081E000-memory.dmp

                                          memory/3040-19-0x000000007375E000-0x000000007375F000-memory.dmp

                                          memory/5048-20-0x00000000026C0000-0x00000000026C1000-memory.dmp