Analysis

  • max time kernel
    5s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2024 19:54

General

  • Target

    31e3505cf4317007986277382935a60c2ae444065607cd2c11b35cab72ce6488N.exe

  • Size

    2.0MB

  • MD5

    a3bb7594683e70a55e63d168bcd1dfb0

  • SHA1

    c4fa7795b47d514034094278dd3266fac0e911ed

  • SHA256

    31e3505cf4317007986277382935a60c2ae444065607cd2c11b35cab72ce6488

  • SHA512

    174ac041a3b941db4d1206acea6870af42a5d9ac48b0644af82e1a953d6ef84aa9792544c707975cdf4e34a647ff2afde099ae572b4e878705f274d11b355122

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYH:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yh

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 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\31e3505cf4317007986277382935a60c2ae444065607cd2c11b35cab72ce6488N.exe
    "C:\Users\Admin\AppData\Local\Temp\31e3505cf4317007986277382935a60c2ae444065607cd2c11b35cab72ce6488N.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:4816
    • 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:3016
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 552
          3⤵
          • Program crash
          PID:1828
      • 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:4400
        • 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:4128
        • 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:1552
          • 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:2424
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\oYIrpoDgb04y.bat" "
            4⤵
              PID:4636
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4156
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4548
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2984
                    • 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:1604
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kQWZKxTEjBhH.bat" "
                      6⤵
                        PID:3652
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3564
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1164
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2984 -s 2240
                          6⤵
                          • Program crash
                          PID:4924
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 2292
                      4⤵
                      • Program crash
                      PID:4324
                • C:\Users\Admin\AppData\Local\Temp\31e3505cf4317007986277382935a60c2ae444065607cd2c11b35cab72ce6488N.exe
                  "C:\Users\Admin\AppData\Local\Temp\31e3505cf4317007986277382935a60c2ae444065607cd2c11b35cab72ce6488N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2428
                • 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:1492
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3016 -ip 3016
                1⤵
                  PID:2772
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:768
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:2664
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:508
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 520
                            3⤵
                            • Program crash
                            PID:3140
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4244
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:1612
                            • 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:4700
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2664 -ip 2664
                            1⤵
                              PID:1572
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1552 -ip 1552
                              1⤵
                                PID:408
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2984 -ip 2984
                                1⤵
                                  PID:4040
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:1468
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4728

                                    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\kQWZKxTEjBhH.bat

                                      Filesize

                                      208B

                                      MD5

                                      d9ab541519a10d94b41d48bb0d2b5026

                                      SHA1

                                      ef3fdebaf1fc7fc91b66417c1e2242185760cbc8

                                      SHA256

                                      b993bc021b2858311e7f6d0fc43b5ef533ba8de6ff05959660237ec62f45247a

                                      SHA512

                                      ba062d62d2972624ef3fc4830e8065a192b4a4ef243b81e052fe0627931f07e2f94b4e3cc2d6556671cac4e5b5230d401df305f69132da4534d568e0268b5ef2

                                    • C:\Users\Admin\AppData\Local\Temp\oYIrpoDgb04y.bat

                                      Filesize

                                      208B

                                      MD5

                                      02a5c4df5d23096f7c9879bfbcdf0fa4

                                      SHA1

                                      21448bdedb865a9ce16f6c5fa717dbf8a7b72234

                                      SHA256

                                      80c65e61ae8935fe8f11df3dec401336de6e89d2074b17324bb9f1555b7c7420

                                      SHA512

                                      ac50167acb679037d7a8a0ab2f2fe86a2b5e56df0941083f6a8dea1c0e2821e7032081e7f4b7080ca68e83935f703394be16d89b222ec14dbd5e8b70cae4b4bb

                                    • 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\10-13-2024

                                      Filesize

                                      224B

                                      MD5

                                      bd7fe419dd5f2ec7a5a6452507e3c429

                                      SHA1

                                      70b551cf8fb0e6f5ec7c42fda1f8a565bf4be847

                                      SHA256

                                      c8b792e459cd33b77c3abf12a9123f7dc0913613b56652088e60b3a94ec8e421

                                      SHA512

                                      647a948cf26b3f12ccc968c64e50d54d9f95f77b6284ccbbf4d2a2cae6e7ab9e096b85c13a3ef29c10edee1bf8412fea0009cba995a1786edd222b5a362dc2dd

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      732aa2d6d2abe0896858b448e62cefb9

                                      SHA1

                                      91dbb65b75949841f15107c1cde4f799ec95ff55

                                      SHA256

                                      ccd8a5c699d544d4e2751d9ea8c6f9920d44ea493ffa957f069ac9bbfcf13bd6

                                      SHA512

                                      7b40d97a5e1b076a8d59105bc93593dca4c2bf7a7212bb2ac181be37b8c660746dc1566bdc32af62c8419b025c3cfde3e40020227538f70ae8d00ba3729bd521

                                    • memory/1552-45-0x0000000006110000-0x000000000611A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2428-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2428-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4400-35-0x0000000005630000-0x0000000005696000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/4400-36-0x0000000006370000-0x0000000006382000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/4400-37-0x00000000068B0000-0x00000000068EC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/4400-34-0x0000000005590000-0x0000000005622000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/4400-33-0x0000000005B40000-0x00000000060E4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/4400-30-0x0000000000C30000-0x0000000000C8E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/4400-29-0x00000000731AE000-0x00000000731AF000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4816-19-0x00000000032A0000-0x00000000032A1000-memory.dmp

                                      Filesize

                                      4KB