Analysis

  • max time kernel
    5s
  • max time network
    68s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 07:44

General

  • Target

    005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe

  • Size

    2.0MB

  • MD5

    2874eed770eb9c67ded0643e813a00a0

  • SHA1

    7b5ed1e6164fca1b0c82b256c238840c965661c7

  • SHA256

    005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637c

  • SHA512

    203ae06889e57029d663dc56c6f693cb224baa12d1c434672a39ca6dbc62acac2e291de6f4acba9db6ed562a9fb7fe5f5b8c24d6201bc1f377a2dc7df2459562

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe
    "C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.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:4172
    • 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:1564
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4164
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1564 -s 560
          3⤵
          • Program crash
          PID:3868
      • 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:5072
        • 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:4244
          • 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:5048
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qc2Ni0YS1tjX.bat" "
            4⤵
              PID:220
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2124
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:5028
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3160
                    • 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:3464
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BdgX6sPevq4a.bat" "
                      6⤵
                        PID:1632
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4512
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:968
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 1992
                          6⤵
                          • Program crash
                          PID:4252
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 2288
                      4⤵
                      • Program crash
                      PID:4064
                • C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe
                  "C:\Users\Admin\AppData\Local\Temp\005f817c7c2f3fa6911fde1e2be34653e4518feb45a79442f0bd0e930f98637cN.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1036
                • 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:2108
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1564 -ip 1564
                1⤵
                  PID:3916
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:3828
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:2556
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4820
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 520
                            3⤵
                            • Program crash
                            PID:4192
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:2680
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:632
                            • 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:4900
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2556 -ip 2556
                            1⤵
                              PID:2948
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4244 -ip 4244
                              1⤵
                                PID:4348
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3160 -ip 3160
                                1⤵
                                  PID:788

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                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\BdgX6sPevq4a.bat

                                  Filesize

                                  208B

                                  MD5

                                  36caf790b2f75327538f086c585f361b

                                  SHA1

                                  33c4f5b74a74d50a441a47ccef9c8e138db0ce6a

                                  SHA256

                                  25937ccfcee049df82adee7ebf6006b2cc59dcd42e34300dd28ec78e5f248703

                                  SHA512

                                  f86dcada6198807238cee48f046504f84cf03511efc2c2b37521c030cdabc6461ef08008bee74e9a5c7c3c023713a5061fab11d6bf8d89e572d546767d25bfe5

                                • C:\Users\Admin\AppData\Local\Temp\qc2Ni0YS1tjX.bat

                                  Filesize

                                  208B

                                  MD5

                                  c71ad22fdda462cb0d47dd32b1253a59

                                  SHA1

                                  8c257373ecf6c85c7722547b9aaa9a8313902f15

                                  SHA256

                                  abbedbeb2de3df0757d413f5a3ae8f4111d5353079d58f9fdc34c24bd64ee0f4

                                  SHA512

                                  abea58d060db1c813878dfaae645960c4af525bf3e203fde49e6ee6c081ca6af1ad917a56fe5c85ff4d45b336d9422b42a70e037443fd5eb15f4bdc61290767b

                                • 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\10-04-2024

                                  Filesize

                                  224B

                                  MD5

                                  579237c72e00aedac2b9e9d4bd44fafa

                                  SHA1

                                  9510d8a49b285c79704e0246ad80209ed4a9aa71

                                  SHA256

                                  7b8eb983a39aaf1c63a7109c32aac4318635fed5e983779b0eb362e4331dfb10

                                  SHA512

                                  81295d8b35ff95a5e60d57de4f8f5baef250e3d29760813751e5e661c67d89fedff33b0823fd4d683bcd9bb85a24bf16d808a27e74740839596103e12b3d261c

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  829c5472fa71d6265b3e5037a3541d51

                                  SHA1

                                  ec00923763ed01dc0475f97c0a5889702e39e875

                                  SHA256

                                  db11d2a3575f9b7376ff9d43611e450d48df47972656399dea4642808865d44e

                                  SHA512

                                  d35e4d997c9ccefee49e1fe5f055d7e3f1475e8c81cdb6950ec1a766ae14e2a6475811473aafe351a6dc599f124036bd8d592c2ef961b2d94a2466514998a613

                                • memory/1036-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1036-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/2976-34-0x0000000005630000-0x0000000005696000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/2976-35-0x0000000006340000-0x0000000006352000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/2976-36-0x0000000006880000-0x00000000068BC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/2976-33-0x00000000056C0000-0x0000000005752000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/2976-32-0x0000000005C70000-0x0000000006214000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2976-31-0x0000000000D10000-0x0000000000D6E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/4172-19-0x0000000003960000-0x0000000003961000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4244-44-0x0000000006400000-0x000000000640A000-memory.dmp

                                  Filesize

                                  40KB