Analysis

  • max time kernel
    5s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2024 18:04

General

  • Target

    610ccf46f2ba0d06740510c1d201cb98277c637c86da757101be6d17b492655aN.exe

  • Size

    2.0MB

  • MD5

    598cbdf4384a156c98c64d529babc6c0

  • SHA1

    08eabe84f0c7259627c0f26264a1d6af1b79c41e

  • SHA256

    610ccf46f2ba0d06740510c1d201cb98277c637c86da757101be6d17b492655a

  • SHA512

    fc374af718ff81e4077f6253a6265235bab60468f94ee86884fcb164df2ab38d5e085a9319462de8bcb2cfbff3b95319f37d93057721a0d8de1680a2ab21c208

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYn: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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\610ccf46f2ba0d06740510c1d201cb98277c637c86da757101be6d17b492655aN.exe
    "C:\Users\Admin\AppData\Local\Temp\610ccf46f2ba0d06740510c1d201cb98277c637c86da757101be6d17b492655aN.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:3560
    • 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:3388
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 184
          3⤵
          • Program crash
          PID:4956
      • 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:2976
        • 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:4340
        • 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:4780
          • 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:2932
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\q9hFd0XLoysQ.bat" "
            4⤵
              PID:2880
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2812
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3872
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3948
                    • 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:4384
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bQPAuGWPngXR.bat" "
                      6⤵
                        PID:1224
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4424
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2552
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 2240
                          6⤵
                          • Program crash
                          PID:1196
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 2256
                      4⤵
                      • Program crash
                      PID:2580
                • C:\Users\Admin\AppData\Local\Temp\610ccf46f2ba0d06740510c1d201cb98277c637c86da757101be6d17b492655aN.exe
                  "C:\Users\Admin\AppData\Local\Temp\610ccf46f2ba0d06740510c1d201cb98277c637c86da757101be6d17b492655aN.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4196
                • 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:1692
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3388 -ip 3388
                1⤵
                  PID:928
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:2452
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:384
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4508
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 384 -s 520
                            3⤵
                            • Program crash
                            PID:1296
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3044
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:3476
                            • 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:2792
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 384 -ip 384
                            1⤵
                              PID:944
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4780 -ip 4780
                              1⤵
                                PID:3396
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3948 -ip 3948
                                1⤵
                                  PID:1732
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:1824
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1952

                                    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\bQPAuGWPngXR.bat

                                      Filesize

                                      208B

                                      MD5

                                      e309342e6bd11ee7b495c1c4a3b3e719

                                      SHA1

                                      f9dd88ed8fe3a32d91c72e86c94c7e2c70b5f418

                                      SHA256

                                      9b10881f5d906087551e566edfe36da93a630e6f35b5bd7bcbb7e4013f5e1f0d

                                      SHA512

                                      b59071eba6efeb2c10775d39eaf133527f27628351c181dfbf8560bd29d0c0fc277a60013377a6215ea3952400cef5e6c9a89e3717af4dfaec2e483cf2f2f69e

                                    • C:\Users\Admin\AppData\Local\Temp\q9hFd0XLoysQ.bat

                                      Filesize

                                      208B

                                      MD5

                                      b2912c8dff5536286b2ab8bf36c5876f

                                      SHA1

                                      8a56ee6a6ec45ddd320cee6549d1c8e884fb7173

                                      SHA256

                                      6941e8153f5fc20262da76cde9ceecfc29b7e26d78899410695d8dcd3801f91d

                                      SHA512

                                      85cb3772dffb117fbcc8490ccb35a07338875dba1bc72a853245f022e80da5e99c1d13a40464ab32b6cbb1a5eef6c0c053c54daad35ea5b836b0aafac513c77f

                                    • 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\10-06-2024

                                      Filesize

                                      224B

                                      MD5

                                      d63b293a52d45a95dc26c65a51ad1f4c

                                      SHA1

                                      f22eccdbeae3f0465fb54042d2951ea0011b2337

                                      SHA256

                                      4efb42374b63135e7bfb372e0577337cbade3dafdc7f7fe93dae0d380b15ce17

                                      SHA512

                                      12c65eeca2876c1fc6f6ff8c5ba553af2a500b8e77c47e1b331ae9513b1819ce93bf8abb893b5396a287b3bac07f5d3dea113fc67f6fa1c26d14f595ac6076f9

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      591c7e1a5c394e1940a421da02a88024

                                      SHA1

                                      672726c7578b222d38c54980992f0e9ee08a8edc

                                      SHA256

                                      cb4e9045d1a08db6dd5b2d210703522d965036bed575c03e54f4548f5dee5ccc

                                      SHA512

                                      d78fbc678132bdf3fe649853ddc09ee0dc0aeb32ec9bd4737cec0a95ef9ca7419aa8976e6dc0095ea909461870eee02b460f80fb4444202676252d0b3155533f

                                    • memory/2976-34-0x00000000056A0000-0x0000000005706000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2976-33-0x0000000005600000-0x0000000005692000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2976-35-0x00000000063D0000-0x00000000063E2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2976-36-0x0000000006910000-0x000000000694C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2976-32-0x0000000005AC0000-0x0000000006064000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2976-31-0x0000000000C90000-0x0000000000CEE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3560-19-0x0000000004400000-0x0000000004401000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4196-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4196-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4780-44-0x00000000066E0000-0x00000000066EA000-memory.dmp

                                      Filesize

                                      40KB