Analysis

  • max time kernel
    6s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-08-2024 22:08

General

  • Target

    508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe

  • Size

    2.0MB

  • MD5

    11b481489c61d4fb6ae5511bd2d047d8

  • SHA1

    2979994b6a9c6867579dc6339c50582ca675e8cb

  • SHA256

    508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99

  • SHA512

    7453f154fc7df1e23a97461602eec61038593ece8eb45038760f328d23191a7bcb078a0a0504dddaf93ba4e737ab05cc415c2e036e11cd20d439833bc24da999

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY2:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YE

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 2 IoCs

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

  • Executes dropped EXE 5 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 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe
    "C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.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:4580
    • 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:3340
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3340 -s 548
          3⤵
          • Program crash
          PID:5068
      • 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:1672
        • 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:2580
        • 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:1656
          • 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:1416
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YvaM3dzYIf8g.bat" "
            4⤵
              PID:4540
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3200
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2940
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2144
                    • 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:2620
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 2236
                  4⤵
                  • Program crash
                  PID:2388
            • C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe
              "C:\Users\Admin\AppData\Local\Temp\508e555f45432ac7c2cf03e85d40e44139021987ae1fdcc1a310d12bc2295c99.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2932
            • 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:4092
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3340 -ip 3340
            1⤵
              PID:944
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
              • Checks computer location settings
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4276
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                • Executes dropped EXE
                PID:4288
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k
                  3⤵
                    PID:5028
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 4288 -s 520
                    3⤵
                    • Program crash
                    PID:2468
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  2⤵
                    PID:1772
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    2⤵
                      PID:2180
                    • 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:1520
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4288 -ip 4288
                    1⤵
                      PID:4056
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1656 -ip 1656
                      1⤵
                        PID:3624
                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                        1⤵
                          PID:2212
                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                          1⤵
                            PID:4596

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          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\YvaM3dzYIf8g.bat

                            Filesize

                            208B

                            MD5

                            9ee852063eed31745d6c3648b736b0a3

                            SHA1

                            8bffe54267138a3dc4b09ba3fbd392d8f48da4b3

                            SHA256

                            b70909cde72e506f0cf4abacb6f9890031c928e2ddf3a58819a24970da4abfca

                            SHA512

                            51cb55682aace2bdf9a223adf40ea59b5da367834e5dcedf822db84bf5bc64f385710f4f60b28a132321141cf805c644c4aa0d5585d089d0448abb3e9df8c79b

                          • 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\08-17-2024

                            Filesize

                            224B

                            MD5

                            890462906a67fef6efa07d028a7add20

                            SHA1

                            0c67ebe131e6ab85292ae0c4f2d8be0a22c76750

                            SHA256

                            ab440b5c72bce66d1a449498397ea5bff9da4c3ddde4732bea1dadfd174643a5

                            SHA512

                            517c702b70837b211a3c87f3440e95f1843b8e0c6bf25be4f1773367e0d6b89a3e8f5992bc889b95e5cd68f1c11f9dab738c8dc97d8a6beeee0bc0e4d2746ab2

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

                            Filesize

                            2.0MB

                            MD5

                            c06c9eecbb3c0d0530e24da19b38a320

                            SHA1

                            6ed1e08d3a6cc4be7ba13fdf35332412ec4cc3b1

                            SHA256

                            b5a8750c9f5cc39baca186fae03235e5419a2e6672c7cae7ad814d05fd52b1e7

                            SHA512

                            41959feb97621141db864dabb4602701eab61018d5cb514b5a6ab15716d7101c3a36d35df530b9685893a4fe2ef2724c18cfaaa298d4345f6b3a5deff5f0e06a

                          • memory/1656-45-0x0000000006AE0000-0x0000000006AEA000-memory.dmp

                            Filesize

                            40KB

                          • memory/1672-36-0x0000000005EF0000-0x0000000005F02000-memory.dmp

                            Filesize

                            72KB

                          • memory/1672-34-0x0000000005880000-0x0000000005912000-memory.dmp

                            Filesize

                            584KB

                          • memory/1672-35-0x0000000005980000-0x00000000059E6000-memory.dmp

                            Filesize

                            408KB

                          • memory/1672-33-0x0000000005F30000-0x00000000064D4000-memory.dmp

                            Filesize

                            5.6MB

                          • memory/1672-37-0x0000000006AE0000-0x0000000006B1C000-memory.dmp

                            Filesize

                            240KB

                          • memory/1672-30-0x0000000000E30000-0x0000000000E8E000-memory.dmp

                            Filesize

                            376KB

                          • memory/1672-29-0x000000007337E000-0x000000007337F000-memory.dmp

                            Filesize

                            4KB

                          • memory/2180-67-0x0000000000370000-0x0000000000390000-memory.dmp

                            Filesize

                            128KB

                          • memory/2180-73-0x0000000000370000-0x0000000000390000-memory.dmp

                            Filesize

                            128KB

                          • memory/2212-82-0x00007FFE817D0000-0x00007FFE819C5000-memory.dmp

                            Filesize

                            2.0MB

                          • memory/2932-28-0x0000000000400000-0x0000000000420000-memory.dmp

                            Filesize

                            128KB

                          • memory/2932-20-0x0000000000400000-0x0000000000420000-memory.dmp

                            Filesize

                            128KB

                          • memory/4580-19-0x0000000003B50000-0x0000000003B51000-memory.dmp

                            Filesize

                            4KB