Analysis

  • max time kernel
    6s
  • max time network
    150s
  • 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 10:36

General

  • Target

    c88566768dd44b3ae973dfc09b364810.exe

  • Size

    2.0MB

  • MD5

    c88566768dd44b3ae973dfc09b364810

  • SHA1

    00a9b5f26e2d19aa8184f2871629a8c530f47974

  • SHA256

    36f9e22e8b82d0f5e88da785073bda74f5d732070622397bb0b700862cf5f3b4

  • SHA512

    fa20fdd0bbf128d07ffb9a76eb21d61f7544b43bac23da1a388f31b738d73bda7b687408a6c1a5ce5bfcf294091761a8d590143121c10ef15e85b2a956982f6a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYG:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yk

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 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\c88566768dd44b3ae973dfc09b364810.exe
    "C:\Users\Admin\AppData\Local\Temp\c88566768dd44b3ae973dfc09b364810.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: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:1600
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4744
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 548
          3⤵
          • Program crash
          PID:5044
      • 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:4008
        • 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:3176
        • 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:4920
          • 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:4940
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\B9tKIHPhW3jU.bat" "
            4⤵
              PID:3464
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:8
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4112
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4368
                    • 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:1764
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\20JI0fVu8Qft.bat" "
                      6⤵
                        PID:688
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3540
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3388
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4036
                              • 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
                                8⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:1924
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4368 -s 2252
                            6⤵
                            • Program crash
                            PID:2336
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 2252
                        4⤵
                        • Program crash
                        PID:4120
                  • C:\Users\Admin\AppData\Local\Temp\c88566768dd44b3ae973dfc09b364810.exe
                    "C:\Users\Admin\AppData\Local\Temp\c88566768dd44b3ae973dfc09b364810.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4156
                  • 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:3724
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1600 -ip 1600
                  1⤵
                    PID:4200
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4920 -ip 4920
                    1⤵
                      PID:4512
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:5024
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:3680
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2880
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 520
                                3⤵
                                • Program crash
                                PID:1148
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4380
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:1904
                                • 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:4544
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3680 -ip 3680
                                1⤵
                                  PID:2200
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4368 -ip 4368
                                  1⤵
                                    PID:5012
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:2668
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:4440

                                      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\20JI0fVu8Qft.bat

                                        Filesize

                                        208B

                                        MD5

                                        82c89e52ad114db02accdd814f8e47a7

                                        SHA1

                                        3a8aaa06bc6dd1e42d40d0670384d904be6954ce

                                        SHA256

                                        1ad7bb725aef6b1d390b93b66484e3d75369d1b45711c1117a014f3e21c73fec

                                        SHA512

                                        149dea6d7dfa378c86f8cf25ffbf52363f1505a0984465829629f1306900934f5649bf557f467cf8f97158f06fd30b02888d965843faf8873b87468a74927a7d

                                      • C:\Users\Admin\AppData\Local\Temp\B9tKIHPhW3jU.bat

                                        Filesize

                                        208B

                                        MD5

                                        8b0c04b5ebc3e88b7e55f925ecb435be

                                        SHA1

                                        4f408230baaf633078314c9e67600098954b08f2

                                        SHA256

                                        57dfb10bc0b66237a00e7a69642d2e79db1bf73c7eae2d077d20d84ea386a885

                                        SHA512

                                        d6e45f3504d000f9cec752aadf1d35c9d2a9471f900f7519d41309665bd7eceab2d1ed68a455620c87ec40ef211f46f8cd35aa4260934f0e9807767585639950

                                      • 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

                                        6e0ac7e9126bdc43ba2fb38d725ddce1

                                        SHA1

                                        890fa9b6eeecb24cf4117e79e486e6196e3c1fd5

                                        SHA256

                                        838ebeb099a85f55d89d19af56d3ff9e9250032494956acc0950ccebb00ed053

                                        SHA512

                                        4b60ded37e4bd9c0edd4c113917131dabf15a5e9c8486a5ab593de83782edfefbaa59874de6a58c73d29e12a156a5a22c8c477b5470a3b95531c5eeba0b5a720

                                      • C:\Users\Admin\AppData\Roaming\Logs\09-17-2024

                                        Filesize

                                        224B

                                        MD5

                                        e093eba4ea448b450577b333f4a7df7c

                                        SHA1

                                        674b54b1db13c08a4b2302f98c963d464dc5fa66

                                        SHA256

                                        929d841f83bf098a7fde3b90016f6074633a2a28f083e15ba974cec7f6cb9952

                                        SHA512

                                        43a73af24c13a9d0fce79fedc25ef6d1cbb8363cb4cc31fc30560d14025fadb57c37ef8ed6188f14399de0760b9fb99306efd6ea4adca9d8e1ad4c16420d3558

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        7d3e64cefe08f5a4b6e2665cdcde4baf

                                        SHA1

                                        58b492a3ebe31acad667d339942dc6b7a4a28861

                                        SHA256

                                        c4a98f3d066f76da81c371940e8f1b427073ef47bf1de75e7170b410c0c8346f

                                        SHA512

                                        31e469f6c90753f444571676399e13834ea4cac31c871d149f6d1eb56127897d767ea0c81372bbf3c2552198881623873977a58c707037a28c3b000b9c380c22

                                      • memory/1904-80-0x0000000000840000-0x0000000000860000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/1904-74-0x0000000000840000-0x0000000000860000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3868-20-0x0000000001F90000-0x0000000001F91000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4008-36-0x0000000005280000-0x0000000005292000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/4008-37-0x0000000005E70000-0x0000000005EAC000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/4008-35-0x0000000004C20000-0x0000000004C86000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4008-34-0x0000000004D30000-0x0000000004DC2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4008-33-0x00000000052E0000-0x0000000005884000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4008-30-0x00000000001C0000-0x000000000021E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/4008-19-0x000000007342E000-0x000000007342F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4156-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4156-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4920-45-0x00000000066D0000-0x00000000066DA000-memory.dmp

                                        Filesize

                                        40KB