Analysis

  • max time kernel
    5s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 00:30

General

  • Target

    dttcodexgigas.exe

  • Size

    2.0MB

  • MD5

    ad7e5da7406784ec983964b81b9ceff1

  • SHA1

    582a9f8c1c2c69541f79a389a40e835287ff5428

  • SHA256

    5816e7c74590935f8fb29f79c09619ecc8d53aa98d55dab09843ae5c6dadf40e

  • SHA512

    828b68fd9feca0b995b47856657bc4dd387ca6f81b8c9469eb8b048120014bf9346508b649bc4372f012a6dde683a2965bb9cec9c21f99c2840336a5e5b3bb99

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYU:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yq

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\dttcodexgigas.exe
    "C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.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:3868
    • 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:4736
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 548
          3⤵
          • Program crash
          PID:1552
      • 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:2072
        • 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:2604
        • 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:4664
          • 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:4412
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\X707pwIB0mlO.bat" "
            4⤵
              PID:64
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4380
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4396
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3800
                    • 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:2092
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LxcMkbE57Lzt.bat" "
                      6⤵
                        PID:2524
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3276
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1620
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 1716
                          6⤵
                          • Program crash
                          PID:4928
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 2244
                      4⤵
                      • Program crash
                      PID:4428
                • C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe
                  "C:\Users\Admin\AppData\Local\Temp\dttcodexgigas.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2724
                • 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:3096
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4736 -ip 4736
                1⤵
                  PID:3468
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4664 -ip 4664
                  1⤵
                    PID:2552
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:212
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:1036
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4660
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 520
                              3⤵
                              • Program crash
                              PID:3632
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2168
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2468
                              • 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:1216
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1036 -ip 1036
                              1⤵
                                PID:4904
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3800 -ip 3800
                                1⤵
                                  PID:3704
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4360
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4912
                                    • C:\Windows\system32\sihost.exe
                                      sihost.exe
                                      1⤵
                                        PID:2984
                                        • C:\Windows\explorer.exe
                                          explorer.exe /LOADSAVEDWINDOWS
                                          2⤵
                                            PID:3736

                                        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\LxcMkbE57Lzt.bat

                                          Filesize

                                          208B

                                          MD5

                                          fc999f79ca8d054770ea3b5544345a6d

                                          SHA1

                                          21a472a1226c85de2038f2efa50efdb5ddac81a7

                                          SHA256

                                          fc90b846536fefc19e1ffc02a52e3a72ed0f57afcbcd70e161acdc6e60588e2c

                                          SHA512

                                          057879dece76170b7c5689ff080fca951b7aa0fab50d3acb28086fefe822a1644032a2d9a1601d7c60fe6510772611b407a59ca4ab47dd9ef3b12e58d4bb00bf

                                        • C:\Users\Admin\AppData\Local\Temp\X707pwIB0mlO.bat

                                          Filesize

                                          208B

                                          MD5

                                          f9e0917ec7b2eeb9528a9b40b57ff5c7

                                          SHA1

                                          f3be3ef111e89fbbd3126f00c499648659eee625

                                          SHA256

                                          dd732fe378d774b50abeb25d2788cc830f3e61fc6dcf516fc741bc37a20128c0

                                          SHA512

                                          d25a9afac69c8fb02d1390befdd7425a9dc6e77abb41009c77634e9991bc297b7662c2f5e5f0b90a79f3f73b06c5c6696150a32c017e36e9f2d4b9add9dca9a9

                                        • 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\09-17-2024

                                          Filesize

                                          224B

                                          MD5

                                          0105de38fa30e400e8915eef96d4eef0

                                          SHA1

                                          16b00d1c7d8bc2b172294a4eced58dac6057207f

                                          SHA256

                                          0f45383b71d4e19ee9402bc10a6be64a42272626e54d5b257d16db5db0c878cd

                                          SHA512

                                          d4801a885b7aae2ca0fd26d19f5a3a1cb9bd07ec1a547d8e1bb3a2c974bc3a61da216663281ab82fe7beec3e5ef20d01ee85da11d9c0e95bf1b78a20cb0fcacf

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          5918e33c1b03183bc6f28fba5818e8b2

                                          SHA1

                                          69c2584c23a0de2c3af71764d6384e3d260f18fb

                                          SHA256

                                          7c2954970a5292d8784696fe0046eaa98e469ab8d352dc3e16f26b03796dda7a

                                          SHA512

                                          45d37b81e55aa509f16b7d09e53832aa91cc1ec6072a4ea60b7894b5a5db45e788874cfb7a222a2607a4513b508688ab99cc66ac0a7ab0bc540069fe6d4a8ca6

                                        • memory/2072-30-0x0000000000F10000-0x0000000000F6E000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/2072-34-0x0000000005910000-0x00000000059A2000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/2072-35-0x0000000005870000-0x00000000058D6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/2072-36-0x0000000006640000-0x0000000006652000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2072-37-0x0000000006B80000-0x0000000006BBC000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/2072-33-0x0000000005D50000-0x00000000062F4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/2072-20-0x000000007373E000-0x000000007373F000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2724-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/2724-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/3868-19-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/4664-45-0x0000000006640000-0x000000000664A000-memory.dmp

                                          Filesize

                                          40KB