Analysis

  • max time kernel
    5s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-08-2024 00:12

General

  • Target

    8d7bb9dbe0bad7f7c9cf73075404abfecc5b510b6654093267ee88f03528fb34.exe

  • Size

    2.0MB

  • MD5

    89beb4c95eea3b7de8d90d13bf618228

  • SHA1

    4bec38bf13fb645fe1942b088445f49d158f7299

  • SHA256

    8d7bb9dbe0bad7f7c9cf73075404abfecc5b510b6654093267ee88f03528fb34

  • SHA512

    3257760b0e2c6589a1c96da0a5d8b18f6e58a3da64ab3665d8107d13f5dc106e89fcfd587668715de8ef93c923d574fab7c50958a648e6076dae66185b40b73f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYY:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi

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\8d7bb9dbe0bad7f7c9cf73075404abfecc5b510b6654093267ee88f03528fb34.exe
    "C:\Users\Admin\AppData\Local\Temp\8d7bb9dbe0bad7f7c9cf73075404abfecc5b510b6654093267ee88f03528fb34.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:4312
    • 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:3068
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3068 -s 548
          3⤵
          • Program crash
          PID:4984
      • 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:1464
        • 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:3116
        • 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:1868
          • 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:1768
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Js5MPHd2wjeu.bat" "
            4⤵
              PID:2432
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2976
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4396
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    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
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:3212
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hZH9QCyHHWAg.bat" "
                      6⤵
                        PID:4408
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4920
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:564
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:216
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4036 -s 1984
                            6⤵
                            • Program crash
                            PID:1416
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 2280
                        4⤵
                        • Program crash
                        PID:3756
                  • C:\Users\Admin\AppData\Local\Temp\8d7bb9dbe0bad7f7c9cf73075404abfecc5b510b6654093267ee88f03528fb34.exe
                    "C:\Users\Admin\AppData\Local\Temp\8d7bb9dbe0bad7f7c9cf73075404abfecc5b510b6654093267ee88f03528fb34.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:4468
                  • 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:4208
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3068 -ip 3068
                  1⤵
                    PID:4260
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1868 -ip 1868
                    1⤵
                      PID:316
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4028
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:208
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2632
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 520
                                3⤵
                                • Program crash
                                PID:4404
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3296
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4196
                                • 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:3892
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 208 -ip 208
                                1⤵
                                  PID:1104
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4036 -ip 4036
                                  1⤵
                                    PID:5032
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4212
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:2056

                                      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\Js5MPHd2wjeu.bat

                                        Filesize

                                        208B

                                        MD5

                                        18fc79d7a93f38ee0f9e9eb869584432

                                        SHA1

                                        5e42c2bce51408b20843cb97ad7dcc054ba94dde

                                        SHA256

                                        ad3c81aea7c88f6838ecf5b43df7168dbb171c4f8397897c0ef74ee549de053b

                                        SHA512

                                        03ec80d7f34907a83da5edb852fcbcb489ab05c9934391af5cd56faff317d312849a8727ada1f2fd4e5aaede764534f8a625926a9ce84cd7d5508eabda91477b

                                      • C:\Users\Admin\AppData\Local\Temp\hZH9QCyHHWAg.bat

                                        Filesize

                                        208B

                                        MD5

                                        4b795947a8cd29c3adbf2d55ac944219

                                        SHA1

                                        3f7f5c2f77c9dd9df8524301083b939163f12284

                                        SHA256

                                        c29e25e72dcf4dd900102aaf02ef93cf95fab12ab3eece4a2f4622da8a7bf126

                                        SHA512

                                        2d97ab9085491f2f4b5f0c82a85ea76a6e85cd186712adef045aff766fe5663c38b033365d73034c02580abbab9594c68dbcf61e3a6586c776ad4c604f8e23c5

                                      • 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\08-30-2024

                                        Filesize

                                        224B

                                        MD5

                                        79e3f96d3c6d1daf46e95abfd87f085d

                                        SHA1

                                        447af41bdb695acac15419a227b7c79c0aad6e1a

                                        SHA256

                                        22d0cc73ee9a46ba1bed954961c64d0db8db2a47f58232b9c91f320cc6f761e1

                                        SHA512

                                        432888dba91fb58bf317194f6a556a98b112d83e77236d48cdf5d53b4351bf517cbb473981131d52c2b153356edc0346005ef71fcf62ec36f20ff0d948835096

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        1699e64527fb3b9e312780c4d429c007

                                        SHA1

                                        59c67959e903c2463a2b20dc181b9e14f06a0293

                                        SHA256

                                        a34981cc6d6e3f42c17a5bc6ca4b57a1b8ac4e25fcbfc98424fef0ed84d30149

                                        SHA512

                                        3711ac2913a6c4be8653eee1bd0d988a7ffd34813ca461d9545d691bbd9728218d94ded773dee98428843552190b38e7aa5e1823480961ec118fa6040ea5cf69

                                      • memory/1464-29-0x0000000072ECE000-0x0000000072ECF000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/1464-30-0x0000000000480000-0x00000000004DE000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/1464-35-0x0000000004E70000-0x0000000004ED6000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/1464-36-0x0000000005AD0000-0x0000000005AE2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/1464-37-0x0000000006010000-0x000000000604C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/1464-34-0x0000000004DD0000-0x0000000004E62000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/1464-33-0x00000000052E0000-0x0000000005884000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/1868-45-0x0000000006390000-0x000000000639A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/4196-74-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4196-80-0x0000000000400000-0x0000000000420000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4312-19-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4312-88-0x0000000074BA0000-0x0000000074FF0000-memory.dmp

                                        Filesize

                                        4.3MB

                                      • memory/4468-28-0x0000000000100000-0x0000000000120000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/4468-20-0x0000000000100000-0x0000000000120000-memory.dmp

                                        Filesize

                                        128KB