Analysis

  • max time kernel
    6s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-09-2024 20:31

General

  • Target

    330c49295aca08bf84ef1191fce82c3e06d855e35e0ef03d94f03bb5e4ac7832.exe

  • Size

    2.0MB

  • MD5

    81a4877b0877afdc2aa98f40b99902f3

  • SHA1

    709a67ef7918d64a887a645c2b6676e7ec982d3d

  • SHA256

    330c49295aca08bf84ef1191fce82c3e06d855e35e0ef03d94f03bb5e4ac7832

  • SHA512

    124cb257325c9727c46d788af0ab008a1ac34e2a0152a1cab4417b88ea967159888fafcb61c9e18909725a20cad5758906f826006850232917f2594448cc9547

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYh: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\330c49295aca08bf84ef1191fce82c3e06d855e35e0ef03d94f03bb5e4ac7832.exe
    "C:\Users\Admin\AppData\Local\Temp\330c49295aca08bf84ef1191fce82c3e06d855e35e0ef03d94f03bb5e4ac7832.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:4844
    • 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:684
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2032
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 556
          3⤵
          • Program crash
          PID:4784
      • 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:4908
        • 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:4400
        • 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:2268
          • 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:3256
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NlsQVr1hZhU9.bat" "
            4⤵
              PID:1752
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3744
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2920
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4428
                    • 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:2188
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HrwchxOUEySs.bat" "
                      6⤵
                        PID:4068
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3840
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3736
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 2260
                          6⤵
                          • Program crash
                          PID:4772
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 2252
                      4⤵
                      • Program crash
                      PID:1236
                • C:\Users\Admin\AppData\Local\Temp\330c49295aca08bf84ef1191fce82c3e06d855e35e0ef03d94f03bb5e4ac7832.exe
                  "C:\Users\Admin\AppData\Local\Temp\330c49295aca08bf84ef1191fce82c3e06d855e35e0ef03d94f03bb5e4ac7832.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4796
                • 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:1492
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 684 -ip 684
                1⤵
                  PID:2260
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4656
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:3920
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:3468
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3920 -s 520
                            3⤵
                            • Program crash
                            PID:1836
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:736
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:4504
                            • 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:3992
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3920 -ip 3920
                            1⤵
                              PID:3300
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2268 -ip 2268
                              1⤵
                                PID:3324
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4428 -ip 4428
                                1⤵
                                  PID:232
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:3920
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:5024

                                    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\HrwchxOUEySs.bat

                                      Filesize

                                      208B

                                      MD5

                                      39f68fd5e87d927c1fb4f65afe0a03a2

                                      SHA1

                                      f9797d3757eba6cd3cc3f363a055fcc2c646405f

                                      SHA256

                                      0d34f9757db292690b0246219a97467ce6673adf468c6975bd5093d362b3a240

                                      SHA512

                                      c3c7ab2e0f7bff1df9f1da8751b4f50d6279fdeeb77b0159fbbcdb4993e5fd0b8e7a8fb84eaf86911d222ee8f7e5f24d0253a3edde5d7a42d5749d246a639504

                                    • C:\Users\Admin\AppData\Local\Temp\NlsQVr1hZhU9.bat

                                      Filesize

                                      208B

                                      MD5

                                      1189b43a5ddd59368639d1e8d9e074c0

                                      SHA1

                                      1faa185bcaf7781ce34924cbfb7d6c7aa7d186c0

                                      SHA256

                                      75404bfc3903ac53ee1a9edef05835fb48eaa60d8fbc84d006b168e76b8ea0a6

                                      SHA512

                                      b418caf9d8877a7fb1ad76329b173c428998dd97e3a778cd44b68b63636fea8910377e46dd6cd8f6b26fcfeeded34c40b40e78a667e963a51a4705ec1cf28d2a

                                    • 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\09-08-2024

                                      Filesize

                                      224B

                                      MD5

                                      139923971dc72ae5408522f3d2e1fec1

                                      SHA1

                                      72ca1253659c48dd37451007d7ced368bc2113dc

                                      SHA256

                                      b34e9cc22ecc60cdc24d55e3397d4b15af185afa749ea970f3812c75f8607e00

                                      SHA512

                                      6bf2dc95f2b841624df18e099f8ce7186e0e4079f99c639a49aa7109b7650fe0fe1e30521ac70a5dc0898e70e6a73c7a7d5a265309a9aca57778eba7795ea6b7

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      2428dd0fa8a012c82b7c372a52f54ede

                                      SHA1

                                      77b29441c1d7c4468c5b5d671dd0d30a4805fdc2

                                      SHA256

                                      275586f6aaca2e91122d3b25de7a5c78d9ab5d01b0e3632ee05a8778c955c9ac

                                      SHA512

                                      e22a35529fac5e9a4c553f54dd3777de7597981b6d63a46b779104db515d15d5b5e69dfc13ff3a7eb6724e8b772809e9c032f2923eba19e30db0243029a6ca7f

                                    • memory/2268-44-0x0000000005F90000-0x0000000005F9A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/4504-72-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4504-66-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4796-28-0x0000000001250000-0x0000000001270000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4796-20-0x0000000001250000-0x0000000001270000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4844-19-0x00000000044D0000-0x00000000044D1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4908-36-0x0000000005DF0000-0x0000000005E2C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4908-35-0x00000000051F0000-0x0000000005202000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4908-34-0x0000000004B90000-0x0000000004BF6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4908-33-0x0000000004C70000-0x0000000004D02000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4908-32-0x0000000005220000-0x00000000057C4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4908-31-0x0000000000130000-0x000000000018E000-memory.dmp

                                      Filesize

                                      376KB