Analysis

  • max time kernel
    6s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-10-2024 02:41

General

  • Target

    bdaf11a70ba45c0932675eb83f0cd0e38cc040facd366dbbcb418960c67e6102.exe

  • Size

    2.0MB

  • MD5

    3ca4ea814a4e5736cb009b3eaf2df8f1

  • SHA1

    c119b4dd29dae653f386d5e2211e0cec0a72f622

  • SHA256

    bdaf11a70ba45c0932675eb83f0cd0e38cc040facd366dbbcb418960c67e6102

  • SHA512

    5d1f8b148587d33bf703661a5939cb7f322ca7e260a95478422dbcf58d20b98b6001fe94b06db6e8c9814f688f16696f3ab9b4593bf4943f3c583b13453e70fa

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYK:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ys

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\bdaf11a70ba45c0932675eb83f0cd0e38cc040facd366dbbcb418960c67e6102.exe
    "C:\Users\Admin\AppData\Local\Temp\bdaf11a70ba45c0932675eb83f0cd0e38cc040facd366dbbcb418960c67e6102.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:5020
    • 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:2732
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:5052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 548
          3⤵
          • Program crash
          PID:824
      • 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:2000
        • 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:2736
        • 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:448
          • 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:3420
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\wZq0B9y8NUxV.bat" "
            4⤵
              PID:4264
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:540
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4956
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1440
                    • 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:1920
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ekZzwLDpeHDS.bat" "
                      6⤵
                        PID:4428
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:536
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4936
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1440 -s 2196
                          6⤵
                          • Program crash
                          PID:2376
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 2224
                      4⤵
                      • Program crash
                      PID:1064
                • C:\Users\Admin\AppData\Local\Temp\bdaf11a70ba45c0932675eb83f0cd0e38cc040facd366dbbcb418960c67e6102.exe
                  "C:\Users\Admin\AppData\Local\Temp\bdaf11a70ba45c0932675eb83f0cd0e38cc040facd366dbbcb418960c67e6102.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4912
                • 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:4068
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2732 -ip 2732
                1⤵
                  PID:3104
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:3160
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1860
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1612
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 520
                            3⤵
                            • Program crash
                            PID:2228
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3820
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:1472
                            • 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:2212
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1860 -ip 1860
                            1⤵
                              PID:512
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 448 -ip 448
                              1⤵
                                PID:4296
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1440 -ip 1440
                                1⤵
                                  PID:2228
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:2488
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3132

                                    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\ekZzwLDpeHDS.bat

                                      Filesize

                                      208B

                                      MD5

                                      1c85327b52e63941460e549c1072d96d

                                      SHA1

                                      82ba051dfffcdb41e528ec476c32d98f3a11151c

                                      SHA256

                                      daa78f4afe49486879e7cec0f339f2489894324602f19e169c550bc45ed638a8

                                      SHA512

                                      3ccd22cab8f8626785c8907d6c8f3731554671c13ebb84a3dc28c3532f488d95f484915daf32a8e8b689da5e7e21c1eec037422d91ce44309af4b286186e653e

                                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                      Filesize

                                      405KB

                                      MD5

                                      b8ba87ee4c3fc085a2fed0d839aadce1

                                      SHA1

                                      b3a2e3256406330e8b1779199bb2b9865122d766

                                      SHA256

                                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                      SHA512

                                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                    • C:\Users\Admin\AppData\Local\Temp\wZq0B9y8NUxV.bat

                                      Filesize

                                      208B

                                      MD5

                                      b43bd65014e985c5c0fb1e10e89f9b4d

                                      SHA1

                                      0e97dadb5808909a8afbb62bbdbcb4a6cf0548ba

                                      SHA256

                                      27b2ed1b07e34da989e9b3723b230bc404d9ab0dc1285543eaab3409af4dd4e0

                                      SHA512

                                      0f92f6ed82e94b15a08199d95cf5ab7450d67e5f58461f536e8b477d6bc2a1d987ed40c07a569216b7acc5d963df5bf32bcdeff75b2220a7627ccd55339b08ec

                                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                      Filesize

                                      349KB

                                      MD5

                                      b4a202e03d4135484d0e730173abcc72

                                      SHA1

                                      01b30014545ea526c15a60931d676f9392ea0c70

                                      SHA256

                                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                      SHA512

                                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                    • C:\Users\Admin\AppData\Roaming\Logs\10-05-2024

                                      Filesize

                                      224B

                                      MD5

                                      e13f606886d767bdb0fca22d804be71e

                                      SHA1

                                      96174b33b09616a16155bc81f876a1c70e29b0f6

                                      SHA256

                                      b07c45cf0a3da86bda4a70758e84a6d1fa4d9b543bcef428cf56ef7b5d4d6be0

                                      SHA512

                                      cff8ffc3ce93a7e8b8744a2211ecc992fc9370384b8f4e7fe08190b4c2a64a93190598e75217308e2d426b28617cb6821e2d378a334a10d20526bb5723454317

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      31f338e1baa5200e1653e6e28efd1d53

                                      SHA1

                                      c730c0c7065b4a67da1bc669e733e9e37b53dc27

                                      SHA256

                                      7c6cb89cc3ee213ea450acc65220f0a3d1ce7ecac0ffa1349ddfa28d40918496

                                      SHA512

                                      1272fc79472f324d649e4091ccad7e0c94f0a8305285aabeb9803ed8ab9052a77d698088451990fd576d6456ceac0115d6339f3b8d69da0ca0a7463cffed4e7b

                                    • memory/448-45-0x0000000006D10000-0x0000000006D1A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/1472-73-0x0000000000980000-0x00000000009A0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1472-67-0x0000000000980000-0x00000000009A0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2000-29-0x00000000733AE000-0x00000000733AF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2000-37-0x0000000006330000-0x000000000636C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2000-36-0x0000000005DF0000-0x0000000005E02000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2000-35-0x00000000050E0000-0x0000000005146000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2000-34-0x0000000005180000-0x0000000005212000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2000-33-0x0000000005620000-0x0000000005BC4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2000-32-0x00000000007C0000-0x000000000081E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/4912-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4912-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/5020-19-0x0000000003DB0000-0x0000000003DB1000-memory.dmp

                                      Filesize

                                      4KB