Analysis

  • max time kernel
    5s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2024 03:11

General

  • Target

    bda13765d7e48afda2ba66b96f82ccc0N.exe

  • Size

    2.0MB

  • MD5

    bda13765d7e48afda2ba66b96f82ccc0

  • SHA1

    3e59b18e85d1d025ec88c9bbfc097b7401cd1ead

  • SHA256

    031a6b89fdc180c3d97933380b971c3574b85f7e7760dc1fb1614ffba9a83df7

  • SHA512

    a38da85c04825b310f333727f5e3074913c9d3bdddd1730be7d6eebfb46bc382924ed1f057f4db1dc88bae4b2585ae04cde270610191fef38b13a41276ba258c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYB:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yf

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\bda13765d7e48afda2ba66b96f82ccc0N.exe
    "C:\Users\Admin\AppData\Local\Temp\bda13765d7e48afda2ba66b96f82ccc0N.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:2328
    • 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:4432
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 552
          3⤵
          • Program crash
          PID:4476
      • 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:2068
        • 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:1580
        • 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:3704
          • 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:3096
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\nrjIIIIyCwYL.bat" "
            4⤵
              PID:4236
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4664
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:396
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3020
                    • 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:4008
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3uUVzsAIUA9A.bat" "
                      6⤵
                        PID:2840
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1860
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4428
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1952
                          6⤵
                          • Program crash
                          PID:1428
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 2192
                      4⤵
                      • Program crash
                      PID:2120
                • C:\Users\Admin\AppData\Local\Temp\bda13765d7e48afda2ba66b96f82ccc0N.exe
                  "C:\Users\Admin\AppData\Local\Temp\bda13765d7e48afda2ba66b96f82ccc0N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1984
                • 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:5036
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4432 -ip 4432
                1⤵
                  PID:1604
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4068
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:3752
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:2376
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 520
                            3⤵
                            • Program crash
                            PID:4372
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4028
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:4072
                            • 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:4688
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3752 -ip 3752
                            1⤵
                              PID:1860
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3704 -ip 3704
                              1⤵
                                PID:5036
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3020 -ip 3020
                                1⤵
                                  PID:4024
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4572
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3096

                                    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\3uUVzsAIUA9A.bat

                                      Filesize

                                      208B

                                      MD5

                                      78aa91e933e0df0e31bd5faa19defae2

                                      SHA1

                                      ca349d905b8ea5c16eb7c8ac0d3cbad08daf1e12

                                      SHA256

                                      83c232fa09d424548d870979445e0db3f827c98aa2da705fe46e28cb6435ef3b

                                      SHA512

                                      d8ac57fb58241fa0ce44ec0d367287ab4cfdffb100689ce1bed4710945dbbc010d80ab3f3a680ab9bd3579200c3c17e699dfbfd4196430498d9d2517e0105713

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

                                      Filesize

                                      208B

                                      MD5

                                      bc6270fd51a5d77adf2d976db0bd88b6

                                      SHA1

                                      a07e9994d8d6d226498e951911850cb8a59e7a7b

                                      SHA256

                                      486be370d442488957cb421ef283ec3fb0febc8b1432ca67ba356dc190262ad8

                                      SHA512

                                      240e4960e86b67755bb0056786abe7e675f475c0607459441be91a3b1cdf552b318147d9e8b8dbf9ea2f0a9ff9cfe0a7fabdacaee11a16e85a05066b4515cd96

                                    • 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\08-20-2024

                                      Filesize

                                      224B

                                      MD5

                                      b98ff9ea3c4b72627b1dfd666052817a

                                      SHA1

                                      920f8cc3a046de9251b9b7dc7534d8d3fa73c451

                                      SHA256

                                      0712b7f64145faad8d8589521427bf0b3d494bccdb3076325425e63549446616

                                      SHA512

                                      6dc0fbf0813b936e7c8b5fbb30006f43b06c67e456cb56e06fbe74501a4870a6bd92a1d9e73915412a6d7fabb3a78023685b39dce07fdeb98bbe358028e8239f

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      eab0662912708b573eb9e25952db5c89

                                      SHA1

                                      fb54fcc12b940fbdb7d867429cd1700b456d0d61

                                      SHA256

                                      1112ccfb87b10cc6be4315a12d78ec5e5dd6560827fc633162d559d327f45bdf

                                      SHA512

                                      f517df0c2b4c28e99c3d319a36fe2471cede058b0823dc5cb2a7ae90f025c157a9fa1f5487423ba900e420cdff3b5a41858b3744c9eaa2c60684b5504ed18d7d

                                    • memory/1984-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1984-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2068-34-0x0000000004BF0000-0x0000000004C56000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2068-36-0x0000000005D50000-0x0000000005D8C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2068-35-0x0000000005810000-0x0000000005822000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2068-33-0x0000000004B50000-0x0000000004BE2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2068-32-0x0000000004FC0000-0x0000000005564000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2068-31-0x00000000001D0000-0x000000000022E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/2328-19-0x00000000044B0000-0x00000000044B1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/3704-44-0x0000000006C90000-0x0000000006C9A000-memory.dmp

                                      Filesize

                                      40KB