Analysis

  • max time kernel
    5s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2024 10:34

General

  • Target

    eac4444651ffc8363d0661a8bd7f7880N.exe

  • Size

    2.0MB

  • MD5

    eac4444651ffc8363d0661a8bd7f7880

  • SHA1

    67ffa57d3933e86ce3bb8f043da7e8bb7687fd47

  • SHA256

    cda02221f01a37c96f5da231c8df4694ff316d07b7241f7dd76473d463c7d146

  • SHA512

    9100d329608a284e4e7bdf141fe4ab07f70355979c6bdacbacde3ce1b85e1d544a76ec1fb8ace82cbaec41b572f2cc46f9282f0543e764983cec7732d8d3f85c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY5:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YT

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

    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 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 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\eac4444651ffc8363d0661a8bd7f7880N.exe
    "C:\Users\Admin\AppData\Local\Temp\eac4444651ffc8363d0661a8bd7f7880N.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:6120
    • 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:5272
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2192
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5272 -s 548
          3⤵
          • Program crash
          PID:5860
      • 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:2024
        • 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:4960
        • 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:1652
          • 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:3848
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1wDDVKS9CYPI.bat" "
            4⤵
              PID:5744
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:5700
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3344
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1260
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1652 -s 1112
                  4⤵
                  • Program crash
                  PID:3632
            • C:\Users\Admin\AppData\Local\Temp\eac4444651ffc8363d0661a8bd7f7880N.exe
              "C:\Users\Admin\AppData\Local\Temp\eac4444651ffc8363d0661a8bd7f7880N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:6012
            • 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:6056
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5272 -ip 5272
            1⤵
              PID:5880
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1652 -ip 1652
              1⤵
                PID:5304
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3040
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:2844
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:2688
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 520
                          3⤵
                          • Program crash
                          PID:4388
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:1344
                          • 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:908
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:732
                              • 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:2980
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\C6qyOphNIxwS.bat" "
                                4⤵
                                  PID:3452
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 65001
                                    5⤵
                                      PID:3208
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      5⤵
                                      • System Network Configuration Discovery: Internet Connection Discovery
                                      • Runs ping.exe
                                      PID:2124
                                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                      5⤵
                                        PID:4700
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 732 -s 2272
                                      4⤵
                                      • Program crash
                                      PID:3856
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:5664
                                  • 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:1048
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2844 -ip 2844
                                  1⤵
                                    PID:5604
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 732 -ip 732
                                    1⤵
                                      PID:3488
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:6028
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:5020

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log

                                          Filesize

                                          1KB

                                          MD5

                                          10eab9c2684febb5327b6976f2047587

                                          SHA1

                                          a12ed54146a7f5c4c580416aecb899549712449e

                                          SHA256

                                          f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                          SHA512

                                          7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                        • C:\Users\Admin\AppData\Local\Temp\1wDDVKS9CYPI.bat

                                          Filesize

                                          208B

                                          MD5

                                          0e14a505dd151bdaf6ed7213da05223b

                                          SHA1

                                          bccfe29ce28c4e406b07cb6c24c1e02d1e2b932d

                                          SHA256

                                          921e4706d13768406ecede8588308b1974d842c5e52640cc8ce548157bbb7215

                                          SHA512

                                          13b51348054c68ef62acc3ecf579dacbb163344a69021a7f3b8d956d6fa4099c4b00f5c6de0cd05791627a82867559184a7b5172f8376d5424745ab59369a870

                                        • C:\Users\Admin\AppData\Local\Temp\C6qyOphNIxwS.bat

                                          Filesize

                                          208B

                                          MD5

                                          a5b32c9030a3a7e000e6774ad20fdbb0

                                          SHA1

                                          d6a0e71e85ccb70ebde4bf9e492f0bcdf5162d21

                                          SHA256

                                          730f4e94a824edebb6166b9b33f21dff04e82575ec58ebae6821d1404c34d646

                                          SHA512

                                          ef76f5647e36286b798e9aee094eef8947597a6d14733f2783c50c7e0572bd19d6fa120c562e52e28b500896b07cd9231850351df67c9224ef61b35776c407ad

                                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                          Filesize

                                          405KB

                                          MD5

                                          b8ba87ee4c3fc085a2fed0d839aadce1

                                          SHA1

                                          b3a2e3256406330e8b1779199bb2b9865122d766

                                          SHA256

                                          4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                          SHA512

                                          7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                        • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                          Filesize

                                          349KB

                                          MD5

                                          b4a202e03d4135484d0e730173abcc72

                                          SHA1

                                          01b30014545ea526c15a60931d676f9392ea0c70

                                          SHA256

                                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                          SHA512

                                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                        • C:\Users\Admin\AppData\Roaming\Logs\08-04-2024

                                          Filesize

                                          224B

                                          MD5

                                          9cc1f3cb60aacb434779571de30c91a1

                                          SHA1

                                          1b59dbd8789a6990f56546b80ea29a8469b1b000

                                          SHA256

                                          73f192dde1717c787adf7a03ff493eea2b7dd21f83336339504eb84501c0107c

                                          SHA512

                                          f813f2987bf680a0d77add64e4197c6379008a4402a348b1eb60699d7878f8b7dc7b39f2d36ae1d41898731aaae972abc336920184ff46e51f865a8f42dd16c9

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          e12670cab7d228c70088294aff0eb349

                                          SHA1

                                          6748e98b0a302468d009d836b7387a030a0c8c03

                                          SHA256

                                          606e99c11d8a321f473dc5a37172375dfc4b829b87cefad0cf7eaa2557c9f27f

                                          SHA512

                                          e96b9bb0a79b5dc835f49a02554d92b9302c79bc015819b8320ec39709143406ddaa2e48d6b4843ca2fcc0980ae700489e20b56819b2a4f1e5a86f1304389683

                                        • memory/1652-45-0x0000000006500000-0x000000000650A000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/2024-29-0x0000000072C8E000-0x0000000072C8F000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2024-35-0x0000000005540000-0x00000000055A6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/2024-36-0x0000000005BB0000-0x0000000005BC2000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2024-37-0x00000000067B0000-0x00000000067EC000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/2024-34-0x0000000005630000-0x00000000056C2000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/2024-33-0x0000000005BE0000-0x0000000006184000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/2024-32-0x0000000000C30000-0x0000000000C8E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/5664-71-0x0000000000370000-0x0000000000390000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/5664-77-0x0000000000370000-0x0000000000390000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/6012-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/6012-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/6120-19-0x0000000003B00000-0x0000000003B01000-memory.dmp

                                          Filesize

                                          4KB