Analysis

  • max time kernel
    5s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2024 22:52

General

  • Target

    4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe

  • Size

    2.0MB

  • MD5

    8edce36c57a299022131f82ef1f41c2b

  • SHA1

    2f06abb6f036468307463a5df702d9d918b9adaa

  • SHA256

    4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0

  • SHA512

    8a3de5990501e84ec62d46dddafec11187d4cb679ae57b14178823744acb5dd413c8c4e1c5944ec61702dfd28a3c8af94096bbf6bd4a6dc1239e8f05bebc1af7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYr:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yd

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe
    "C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.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:3316
    • 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:4144
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1240
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 556
          3⤵
          • Program crash
          PID:636
      • 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:944
        • 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:3140
        • 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:3356
          • 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:4132
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cBhsW2bfFkzM.bat" "
            4⤵
              PID:3908
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:784
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2788
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1928
                    • 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:856
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\pfZkZDW9Q72g.bat" "
                      6⤵
                        PID:4892
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3108
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3412
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 2248
                          6⤵
                          • Program crash
                          PID:2780
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3356 -s 2272
                      4⤵
                      • Program crash
                      PID:4972
                • C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe
                  "C:\Users\Admin\AppData\Local\Temp\4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1588
                • 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:3848
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4144 -ip 4144
                1⤵
                  PID:3968
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3356 -ip 3356
                  1⤵
                    PID:3552
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:4792
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4464
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:2088
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 520
                              3⤵
                              • Program crash
                              PID:1016
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3480
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:5052
                              • 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:220
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4464 -ip 4464
                              1⤵
                                PID:3732
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1928 -ip 1928
                                1⤵
                                  PID:5060
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:112
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:2644

                                    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\cBhsW2bfFkzM.bat

                                      Filesize

                                      208B

                                      MD5

                                      aff4727fa969d870dea3b2d8448a7a3f

                                      SHA1

                                      71e3dca48bb8943fcfb291252b98dd9224d368e4

                                      SHA256

                                      b070a1aa505ce84ee5936ccc17e7a31e5c31f6436565dbc99fe43cdcc6dd75b0

                                      SHA512

                                      b590c349a529357b2262889e4ec2eec749ab41b1721d6f136bd757fd29053864d1c712ee2318b5f8e0d12526eb82bdb7c12bdd96bf02ba7cd550555f36995920

                                    • C:\Users\Admin\AppData\Local\Temp\pfZkZDW9Q72g.bat

                                      Filesize

                                      208B

                                      MD5

                                      f44531f4e19c51f197b81812c6467462

                                      SHA1

                                      03287f3bca5fb56a874077f8a1e1b0c07088e046

                                      SHA256

                                      5d47757c0883e35dced4f1443028ee131303803e7a0a61ed08d125bee62d3bb7

                                      SHA512

                                      419066b9b54c97ab52f8527cb53ff9a9f0cc2ef360e903fca789ddb7c4139ab6edbc20890c59bd4166897ae21b24452eccc9b76cff17204f9b0f7e276518bbac

                                    • 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\11-07-2024

                                      Filesize

                                      224B

                                      MD5

                                      5d7339cfbcd48b7e2f010ba8d6357cdf

                                      SHA1

                                      f86e7907987c7bc80c8f06c30e16599f05990744

                                      SHA256

                                      525f92a2a8f69d7bb3c3def71a95527a8e5ae6d5fedba12b3520e404d49ab9ad

                                      SHA512

                                      2829e2e10fb0ac2effa27dc3ee8925672bb9f4a940b262965d8b5f1f47ab32458bf69a2cfe195189b2ed1cd77120b251393704ddf2db8f1ddfeef376fbbea3de

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      fc4ba924483dae2c92585f3c82af5bbd

                                      SHA1

                                      ab6af28ec640ea7adc13618998f26c86194f6b4f

                                      SHA256

                                      ec1779bd26cbc764c3ae986bd5c3b74d21dc48138e6b32478a44e20f06d59a54

                                      SHA512

                                      89ff87ecf417ec1a4db4a7b2952a1635641895ced9a18d07eefcc7515e5308fea4fd5425654398a6b5b8a3505f697d15009cfb2ef05b99e2d4ad9734c098be9e

                                    • memory/944-32-0x0000000000B90000-0x0000000000BEE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/944-34-0x0000000005510000-0x00000000055A2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/944-35-0x00000000055E0000-0x0000000005646000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/944-36-0x00000000061D0000-0x00000000061E2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/944-37-0x0000000006710000-0x000000000674C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/944-33-0x0000000005A20000-0x0000000005FC4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/944-29-0x00000000729CE000-0x00000000729CF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/1588-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1588-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3316-19-0x0000000000F00000-0x0000000000F01000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3356-45-0x0000000005E60000-0x0000000005E6A000-memory.dmp

                                      Filesize

                                      40KB