Analysis

  • max time kernel
    5s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 22:30

General

  • Target

    SystemPropertiesPerformance.exe

  • Size

    2.0MB

  • MD5

    fb7b9fe29bd105cde73e9aaf092d4f9c

  • SHA1

    618383a565df5c4069f87b6a67e3ec419ac95727

  • SHA256

    5783450100886a2407557c774e5261b7325e6f1ac5534570f7623d21b71428a3

  • SHA512

    23e964d10a183359e9c11c3c1b0a930a17b2cc30c4e3a3940aa43852a3dffa9e86411ac065466715c399c4e73422ac1864cd645a9d8c57c13c10a757f387a3ba

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYk:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YC

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 6 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\SystemPropertiesPerformance.exe
    "C:\Users\Admin\AppData\Local\Temp\SystemPropertiesPerformance.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:2568
    • 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:5092
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1156
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 548
          3⤵
          • Program crash
          PID:3544
      • 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:976
        • 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:3376
        • 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:3088
          • 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:2720
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8mR7D8vhTBXz.bat" "
            4⤵
              PID:4784
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:5032
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1944
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4440
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2020
                  4⤵
                  • Program crash
                  PID:4676
            • C:\Users\Admin\AppData\Local\Temp\SystemPropertiesPerformance.exe
              "C:\Users\Admin\AppData\Local\Temp\SystemPropertiesPerformance.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2768
            • 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:3832
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5092 -ip 5092
            1⤵
              PID:5004
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3808,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4092 /prefetch:8
              1⤵
                PID:3816
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3088 -ip 3088
                1⤵
                  PID:2248
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:1876
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:388
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:2732
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 388 -s 520
                            3⤵
                            • Program crash
                            PID:5076
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3376
                            • 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⤵
                              • Scheduled Task/Job: Scheduled Task
                              PID:2296
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              3⤵
                                PID:4856
                                • 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⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:3908
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UFzhjLzMl50S.bat" "
                                  4⤵
                                    PID:460
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 65001
                                      5⤵
                                        PID:1776
                                      • C:\Windows\SysWOW64\PING.EXE
                                        ping -n 10 localhost
                                        5⤵
                                        • System Network Configuration Discovery: Internet Connection Discovery
                                        • Runs ping.exe
                                        PID:2244
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 4856 -s 2264
                                      4⤵
                                      • Program crash
                                      PID:1060
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:3780
                                  • 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:3464
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 388 -ip 388
                                  1⤵
                                    PID:2364
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4856 -ip 4856
                                    1⤵
                                      PID:4528
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:244
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:4404

                                        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\8mR7D8vhTBXz.bat

                                          Filesize

                                          208B

                                          MD5

                                          a1c8cf97dda0466f2ba08610a0703a31

                                          SHA1

                                          fc86aab7556e60545cd2e4d10ea780efb4cd9cc4

                                          SHA256

                                          02f1920e12d77508f454414d9eeaa70ca844dee922cbca7d8b62a9d63c10839c

                                          SHA512

                                          2b4e9d98fb35249af3773a895789dd7e250c97f26f6b539f33002fe0bcf3b48f007fd3695b077eccfee51e7437f6d10a0a385d5024bbecf9055397f6d6f50f42

                                        • C:\Users\Admin\AppData\Local\Temp\UFzhjLzMl50S.bat

                                          Filesize

                                          208B

                                          MD5

                                          27992a8afad59329a289a68368df7dc9

                                          SHA1

                                          5ebb6e3c2615d631d8ae3f252a7df47a82011134

                                          SHA256

                                          4283160a58f763e67917fa2b352ce6635d5bb0e42e2f9b349032eec8fd5b2880

                                          SHA512

                                          5b30972cea5fa6a59d6beedff00b53d555c2985f0e3e713471405f9d02b7a878044e83e7284ecc07670e588adce4173d4180a889ae782c0360ac2ec6ed8b7ac5

                                        • 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\09-16-2024

                                          Filesize

                                          224B

                                          MD5

                                          d39c41bad3b430b7a570e5f7dbdac8d8

                                          SHA1

                                          161f8e1dad5ac653447b3bccf4a52ccecadf407b

                                          SHA256

                                          99968f059ddbcd43dc7bff8f28ffd735d276f4fdff5c1e64c8ed4476ab3fd89f

                                          SHA512

                                          69a0d9bbf22739e89f042972839ed7b8622804e578cc8374b57ed553ff1acb3e69cb66a48dbfb04e600b8811983b0464ec478ef679e3161d6d7c0b6eba38783b

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          4d3b1fe73733ea2d791aa47a91f981d3

                                          SHA1

                                          02a7b7f965690ba95352b2b0d28556bd48dd70ed

                                          SHA256

                                          ef292bbab5893d7bd0e50d6e418e4dc439a9b268251a0222b448e9c110112cc2

                                          SHA512

                                          ede1eb30b6aa1aaa34ab86dd9bf19879482490b0af7eb5392df852bdc642eb772d5b919f4518a8b7080b94bfef0363a3aeda60df8be53a7b6dbdb62808ae59e5

                                        • memory/976-29-0x0000000072EEE000-0x0000000072EEF000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/976-34-0x0000000005330000-0x00000000053C2000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/976-35-0x0000000005290000-0x00000000052F6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/976-36-0x0000000005F30000-0x0000000005F42000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/976-37-0x0000000006470000-0x00000000064AC000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/976-33-0x0000000005840000-0x0000000005DE4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/976-30-0x00000000007A0000-0x00000000007FE000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/2568-19-0x0000000001DC0000-0x0000000001DC1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2768-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/2768-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/3088-45-0x0000000006CB0000-0x0000000006CBA000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/3780-71-0x0000000000470000-0x0000000000490000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/3780-77-0x0000000000470000-0x0000000000490000-memory.dmp

                                          Filesize

                                          128KB