Analysis

  • max time kernel
    4s
  • max time network
    68s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2024 07:55

General

  • Target

    43bbd9392c2d5c53d196b8b8b26d9fb3aec17fcc5b969f54189dae1b241a143cN.exe

  • Size

    2.0MB

  • MD5

    05bbf816883e1c368dd4f952a7026330

  • SHA1

    d97155ec2d62684db6fd10ce04ce0d81820b7929

  • SHA256

    43bbd9392c2d5c53d196b8b8b26d9fb3aec17fcc5b969f54189dae1b241a143c

  • SHA512

    c2912fc1465ec9fb5780adc0446227788c0e536656f41758e8efcaff8ea33e6812390f39a8d5ddd6b80f2ed2f5d107061bdea9c2f72dde60e5e88e15a964bc34

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYl:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yj

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.

  • Azorult family
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • 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 3 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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43bbd9392c2d5c53d196b8b8b26d9fb3aec17fcc5b969f54189dae1b241a143cN.exe
    "C:\Users\Admin\AppData\Local\Temp\43bbd9392c2d5c53d196b8b8b26d9fb3aec17fcc5b969f54189dae1b241a143cN.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:2972
    • 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:4920
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 556
          3⤵
          • Program crash
          PID:5040
      • 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:2368
        • 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:1724
        • 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:5092
          • 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:1140
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6tQQ6MX808fN.bat" "
            4⤵
              PID:4668
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4104
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1688
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3648
                    • 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:3100
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 2264
                  4⤵
                  • Program crash
                  PID:1944
            • C:\Users\Admin\AppData\Local\Temp\43bbd9392c2d5c53d196b8b8b26d9fb3aec17fcc5b969f54189dae1b241a143cN.exe
              "C:\Users\Admin\AppData\Local\Temp\43bbd9392c2d5c53d196b8b8b26d9fb3aec17fcc5b969f54189dae1b241a143cN.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4124
            • 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:756
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4920 -ip 4920
            1⤵
              PID:2928
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5092 -ip 5092
              1⤵
                PID:3960
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:3996
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:456
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3952
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 456 -s 520
                          3⤵
                          • Program crash
                          PID:4048
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:512
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:4528
                          • 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:1712
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 456 -ip 456
                          1⤵
                            PID:3652

                          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\6tQQ6MX808fN.bat

                            Filesize

                            208B

                            MD5

                            5e6cd371d277cbd88412a9969b952725

                            SHA1

                            7c30ed4d0575244feb9c02f48c417509d9409133

                            SHA256

                            534cb9c443c342ae6a1f274a5bddf365000cc66a57a1a0463e6595012f40a2d8

                            SHA512

                            4d66822b7f377a56a7b49c21ed28d271f51a27967b5d42d87b7b50ccc19a2722ffd75ed6664c2a82009affc4aeb14047b9cc0fd7817c99eb876e76efa323517c

                          • 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\11-22-2024

                            Filesize

                            224B

                            MD5

                            440120be4f9f0cf4d13eb0723cd39be0

                            SHA1

                            39e74eada62ed894569e530eea4688653bb0d766

                            SHA256

                            88e188cfddef66f477765581153d5cd6c85fa696e87782cc5ca69bdbc8fd6684

                            SHA512

                            89e2de691ed386dfd1479c595b19b413fb15f68f32d34640205dd3be12e8718a6622fc131a95d6b926bbca4bc845cbc8c000e360c5f0ea7bcb384a15e6f5ceca

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

                            Filesize

                            2.0MB

                            MD5

                            713b6e0589faf1c64ea6215ba2e50389

                            SHA1

                            f2c619e0a0eb5cb7b6d9a8a3655c149b32a9ee0b

                            SHA256

                            dfe6772d7fb08c632d8e50e15d2818d4e11f83cfbad6e7db395ed9bf45e07df0

                            SHA512

                            ce7eea54ba0bdfb26a9a50312ab15a5c8ce606fb3fda1862514cbf953a08cd497ee93d9f1b46439933b939a7af3602ce796fe434456ae296bc7f8ab11364931d

                          • memory/2368-30-0x0000000000040000-0x000000000009E000-memory.dmp

                            Filesize

                            376KB

                          • memory/2368-33-0x0000000004E90000-0x0000000005434000-memory.dmp

                            Filesize

                            5.6MB

                          • memory/2368-34-0x0000000004980000-0x0000000004A12000-memory.dmp

                            Filesize

                            584KB

                          • memory/2368-35-0x0000000004A20000-0x0000000004A86000-memory.dmp

                            Filesize

                            408KB

                          • memory/2368-36-0x0000000005670000-0x0000000005682000-memory.dmp

                            Filesize

                            72KB

                          • memory/2368-37-0x0000000005BB0000-0x0000000005BEC000-memory.dmp

                            Filesize

                            240KB

                          • memory/2368-29-0x000000007336E000-0x000000007336F000-memory.dmp

                            Filesize

                            4KB

                          • memory/2972-19-0x00000000041B0000-0x00000000041B1000-memory.dmp

                            Filesize

                            4KB

                          • memory/4124-20-0x0000000000400000-0x0000000000420000-memory.dmp

                            Filesize

                            128KB

                          • memory/4124-28-0x0000000000400000-0x0000000000420000-memory.dmp

                            Filesize

                            128KB

                          • memory/5092-45-0x0000000006720000-0x000000000672A000-memory.dmp

                            Filesize

                            40KB