Analysis

  • max time kernel
    5s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 16:50

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 7 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:440
    • 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:5064
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4584
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 560
          3⤵
          • Program crash
          PID:1668
      • 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:2916
        • 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:1192
        • 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:1540
          • 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:4072
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JOOqclMUAxYN.bat" "
            4⤵
              PID:3640
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3848
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4056
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:116
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 2268
                  4⤵
                  • Program crash
                  PID:3756
            • C:\Users\Admin\AppData\Local\Temp\c88566768dd44b3ae973dfc09b364810.exe
              "C:\Users\Admin\AppData\Local\Temp\c88566768dd44b3ae973dfc09b364810.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2212
            • 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:2020
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 5064 -ip 5064
            1⤵
              PID:2732
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:980
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:3492
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:3008
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3492 -s 520
                        3⤵
                        • Program crash
                        PID:404
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:5060
                        • 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:4256
                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                          3⤵
                            PID:2316
                            • 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:2196
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tZMofmto36sv.bat" "
                              4⤵
                                PID:1060
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  5⤵
                                    PID:2740
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    5⤵
                                    • System Network Configuration Discovery: Internet Connection Discovery
                                    • Runs ping.exe
                                    PID:4384
                                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                    5⤵
                                      PID:4772
                                      • 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:1740
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 1708
                                    4⤵
                                    • Program crash
                                    PID:4236
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:704
                                • 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:4652
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3492 -ip 3492
                                1⤵
                                  PID:1448
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1540 -ip 1540
                                  1⤵
                                    PID:5072
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2316 -ip 2316
                                    1⤵
                                      PID:2340

                                    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\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                      Filesize

                                      701B

                                      MD5

                                      5de8527438c860bfa3140dc420a03e52

                                      SHA1

                                      235af682986b3292f20d8d71a8671353f5d6e16d

                                      SHA256

                                      d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                      SHA512

                                      77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

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

                                      Filesize

                                      208B

                                      MD5

                                      51f794ac7b4113028a3c29b5bcc35ea1

                                      SHA1

                                      39666988626c1eb99d4fcd56227e1ae843bcb63a

                                      SHA256

                                      2cde8959fd506afb5449a69d8cb99846c40692830ffb74462a4744208d572e71

                                      SHA512

                                      ba270f66db3e69276a5a4845ad069a164d4d986310ac0d51fd821b75839abdd1460b917bfccb47db92975b5aefe152835c9ea54de46c96abd07ee6dea0680bb7

                                    • C:\Users\Admin\AppData\Local\Temp\tZMofmto36sv.bat

                                      Filesize

                                      208B

                                      MD5

                                      8b0c90ef81bc0a8e2e9041ffbf4be685

                                      SHA1

                                      6f4e2a0921fe31cfede20d21636eab359ff19e5e

                                      SHA256

                                      fb17583ee7c4244ab2ebf07f7e14af86bdf64de3f82e32f138e68b6623db2ed5

                                      SHA512

                                      d0204f28a78e2e396df2d7ba24ee376fad549b238cefa178f810906385a325ddad53e8f49e234b52a9ace71048f993cee35d91dbae52d011d616799b5a3120e0

                                    • 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

                                      6029434101e3993f41c7a2f300bc0d80

                                      SHA1

                                      e3d169e9453925c10091b2985a0917b5b982ba9a

                                      SHA256

                                      18484bb9f7f5ce4de69507d96ffa25392650d48e4556b6c9cea01cf3238e10ff

                                      SHA512

                                      30d2061f38a4d8266e039eb4391d4fff391219c837c576a4bcb19267c97513ed8d7cd8cbcfbdc818b4e266453e029d1da0f2e4d80814185dd7cb5d35baeca295

                                    • C:\Users\Admin\AppData\Roaming\Logs\09-16-2024

                                      Filesize

                                      224B

                                      MD5

                                      3d4e6f78ea065297575612ac6dfac394

                                      SHA1

                                      96899b68df2763f8559f77717b297011fbfb7eb2

                                      SHA256

                                      54d0e8cb7da56be3c338747a59b8bab7501859708d782453fab4007b1a4fc81c

                                      SHA512

                                      ff69a95886d91630aff8c1b6e179a57cc99411514130d300f4bdbf5495a45f4a0e3f504af3bbc1b7f9adfa52f9cd3496c0f700e13066ff41ac6b959282950dbd

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      9429cc454f4eeea9f2da2e0e9b113197

                                      SHA1

                                      c1d6de6fd882c6b9473550ba2bb10ec17f95a165

                                      SHA256

                                      771a9f088b8c2b6a44c47f67d63be3de8f6a7d400e29e9f06c4e50c4e94a8c51

                                      SHA512

                                      4493709c32e047a907c5ad9f93da214f4e99f373627b4bf0367deb2fc55570424858fe41976731c788c36342f5b3b40ad4b02840175a68b8539bdae54086f7c2

                                    • memory/440-19-0x0000000003570000-0x0000000003571000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/704-70-0x00000000006E0000-0x0000000000700000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/704-76-0x00000000006E0000-0x0000000000700000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1540-44-0x00000000063E0000-0x00000000063EA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2212-28-0x0000000000320000-0x0000000000340000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2212-20-0x0000000000320000-0x0000000000340000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2916-31-0x00000000005F0000-0x000000000064E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/2916-36-0x00000000062B0000-0x00000000062EC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2916-35-0x0000000005D70000-0x0000000005D82000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2916-34-0x0000000005150000-0x00000000051B6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2916-33-0x00000000050B0000-0x0000000005142000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2916-32-0x0000000005660000-0x0000000005C04000-memory.dmp

                                      Filesize

                                      5.6MB