Analysis

  • max time kernel
    4s
  • max time network
    81s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-08-2024 15:40

General

  • Target

    a8930f55de1877dfa6d4638f00d165e0N.exe

  • Size

    2.0MB

  • MD5

    a8930f55de1877dfa6d4638f00d165e0

  • SHA1

    2e5735bf1eeb36b07874b46e56c06a2c88348120

  • SHA256

    f8ff95209e711a92989400082995195eec6fef1f9f1555771c0b855352c4b111

  • SHA512

    b732723d5f07a1a9c8820e8ab9e1d7878cc713f32a81c6d2feb583f7f68510a40d399554944c4422fc8ffd1356b31b1b5beaf3c39997fd56bfe0f82eba56d19a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYF:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yz

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 3 IoCs

    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 2 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 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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 WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8930f55de1877dfa6d4638f00d165e0N.exe
    "C:\Users\Admin\AppData\Local\Temp\a8930f55de1877dfa6d4638f00d165e0N.exe"
    1⤵
    • Quasar RAT
    • 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:732
    • 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:4520
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4520 -s 556
          3⤵
          • Program crash
          PID:4984
      • 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:1832
        • 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:4976
        • 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
          PID:4692
          • 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:2932
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8utj53rfuJSk.bat" "
            4⤵
              PID:4908
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4344
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:544
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1376
                    • 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:3712
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 2252
                  4⤵
                  • Program crash
                  PID:3528
            • C:\Users\Admin\AppData\Local\Temp\a8930f55de1877dfa6d4638f00d165e0N.exe
              "C:\Users\Admin\AppData\Local\Temp\a8930f55de1877dfa6d4638f00d165e0N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1380
            • 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:3920
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4520 -ip 4520
            1⤵
              PID:4424
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4692 -ip 4692
              1⤵
                PID:2284
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:4612
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:1424
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3736
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 520
                          3⤵
                          • Program crash
                          PID:4600
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:1584
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:3260
                          • 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:112
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1424 -ip 1424
                          1⤵
                            PID:2392
                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                            1⤵
                              PID:1892
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:2844

                              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\8utj53rfuJSk.bat

                                Filesize

                                208B

                                MD5

                                3169dd5564b9aae206634a1e3a6a5099

                                SHA1

                                7ccf90f5833cf1093101f0bfd0bb431964b07844

                                SHA256

                                25a8a549205a8afec74b85656323051e7e25852435d153598c4c1e2e4ca97bfb

                                SHA512

                                0511af526e96c5e3df93b719a97d0f592e7fbd0483aee999fc8eb640f963dfad47ff3f3f6662bcd398614c74bbfafd20f5bbc8e1a2521a3f70804403d7f92f01

                              • 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\08-05-2024

                                Filesize

                                224B

                                MD5

                                6b450328434f134d44fd30a3e9ce25b1

                                SHA1

                                16b491928aa365070e6edcb65a98d432a38f89c8

                                SHA256

                                d64769de5fe6b019f853a0725be4623042bd1b21342a837da6bb28bf8793e3be

                                SHA512

                                b930ff43abd3242fc9dc979fc5a918d7a67c3b114cfadb6b4af904d99abc53f6a4e196963555b60c43cbc1159176ba878ee94a69f363efd296cadda28d3bb1f7

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

                                Filesize

                                2.0MB

                                MD5

                                be424646c6200917d814905d05caf9d2

                                SHA1

                                63f6bc105dc9398fe0878de09b8cd30164b83e88

                                SHA256

                                90f980fb6a68d7e548e37928aa829c61d4391a9a07b9b2388f39be1cbbb625a8

                                SHA512

                                156f9a33aca57291aea7f22df9313c0b39b6f9b4f36915297c8e98b3a0930ad061f84aa15e6b5050d1fdc8c8b5a1b207088b298577ff4e91a036e1cd46bbb8ae

                              • memory/732-45-0x0000000003FA0000-0x0000000003FA1000-memory.dmp

                                Filesize

                                4KB

                              • memory/732-28-0x0000000003FA0000-0x0000000003FA1000-memory.dmp

                                Filesize

                                4KB

                              • memory/1380-27-0x0000000000410000-0x0000000000430000-memory.dmp

                                Filesize

                                128KB

                              • memory/1380-19-0x0000000000410000-0x0000000000430000-memory.dmp

                                Filesize

                                128KB

                              • memory/1832-33-0x0000000004980000-0x0000000004A12000-memory.dmp

                                Filesize

                                584KB

                              • memory/1832-34-0x0000000004A40000-0x0000000004AA6000-memory.dmp

                                Filesize

                                408KB

                              • memory/1832-35-0x00000000056A0000-0x00000000056B2000-memory.dmp

                                Filesize

                                72KB

                              • memory/1832-36-0x0000000005BE0000-0x0000000005C1C000-memory.dmp

                                Filesize

                                240KB

                              • memory/1832-32-0x0000000004FF0000-0x0000000005594000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/1832-31-0x0000000000060000-0x00000000000BE000-memory.dmp

                                Filesize

                                376KB

                              • memory/4692-44-0x0000000006BA0000-0x0000000006BAA000-memory.dmp

                                Filesize

                                40KB