Analysis

  • max time kernel
    5s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-06-2024 21:58

General

  • Target

    5a97f65e2fdd79140ae51e6be60c4eb5874ea5c6ad7ed71a33aa14ce178946c7.exe

  • Size

    2.0MB

  • MD5

    a7f42af0654b4ab0b1eeccb760ee6b21

  • SHA1

    6a1c14780c55495061f09292d6fa9252c0f84d34

  • SHA256

    5a97f65e2fdd79140ae51e6be60c4eb5874ea5c6ad7ed71a33aa14ce178946c7

  • SHA512

    9f1dd57d257eb50a6cbc835a7de89ba6e2a64a1af1fc0176fa02ca7269c5454478993ee9b491c42bc8b16122e9e7a739a077d44e18ad3c5ae0a78eb09c4c483f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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 3 IoCs
  • 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\5a97f65e2fdd79140ae51e6be60c4eb5874ea5c6ad7ed71a33aa14ce178946c7.exe
    "C:\Users\Admin\AppData\Local\Temp\5a97f65e2fdd79140ae51e6be60c4eb5874ea5c6ad7ed71a33aa14ce178946c7.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1332
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1784
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 548
          3⤵
          • Program crash
          PID:4564
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3008
        • 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:4864
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2456
          • 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:1456
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\q6pQxljsn7gj.bat" "
            4⤵
              PID:4572
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:5064
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:4476
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1880
                    • 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:820
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 2252
                  4⤵
                  • Program crash
                  PID:1936
            • C:\Users\Admin\AppData\Local\Temp\5a97f65e2fdd79140ae51e6be60c4eb5874ea5c6ad7ed71a33aa14ce178946c7.exe
              "C:\Users\Admin\AppData\Local\Temp\5a97f65e2fdd79140ae51e6be60c4eb5874ea5c6ad7ed71a33aa14ce178946c7.exe"
              2⤵
                PID:3788
              • 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:1880
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1476 -ip 1476
              1⤵
                PID:1084
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2456 -ip 2456
                1⤵
                  PID:5044
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4580
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:4740
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4528
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 520
                            3⤵
                            • Program crash
                            PID:4600
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3096
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:5072
                            • 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:3604
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4740 -ip 4740
                            1⤵
                              PID:3148

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            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\q6pQxljsn7gj.bat

                              Filesize

                              208B

                              MD5

                              e5540bee15dd76a72a64e1bf25ade1f3

                              SHA1

                              71a3911598c86ee756735672c0c5f65d77e9a255

                              SHA256

                              6b01ac72e492e86e272c004c72c6c17c3b4080d510546c5d507750f2927bae37

                              SHA512

                              94c437a204410fc83ec5d1f954d1bf918a8ef8fef815f9f7e8f27c22f0a469e3fcc31e48c8a769301f8a7ce2d3524e81a15ae4b15125a9958595670a7ded2ce5

                            • 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\06-19-2024

                              Filesize

                              224B

                              MD5

                              3d7ca98486e832183791e28ae01a7532

                              SHA1

                              16d00a403ab257aef6678ce8b7f72c015ec8b7a0

                              SHA256

                              69f367be0d61274d9f83d927019add0ed76102ebd52afdf636d27c50d361baef

                              SHA512

                              0af62b24c694cba1975fcfdc464213cb8094ec6f10ca1fd5242c3439389d251a1f0e53562bf4751b4972acb0f9a6ca71f4670a95820c3de07744dc215dc14c33

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

                              Filesize

                              2.0MB

                              MD5

                              1565896f5b94f032b092f9648e2150dc

                              SHA1

                              1eb9dcb6dd3e142ca0b6027b3cf45173ebc9fbc1

                              SHA256

                              ff7b9083eb08b4bf1ac431a0c762cbaac7016ada0b43ffbf01ed62ce6d9c7585

                              SHA512

                              cb7b45eeb82c9580dbdaa0a5305a6abd02a968cfceec018f8cbd157ad34ed88ab36768f7baeeba7fe2573bb6fe2b7402e98547231ee87ffce6f7c7d52c984fd8

                            • memory/1332-19-0x0000000004380000-0x0000000004381000-memory.dmp

                              Filesize

                              4KB

                            • memory/2456-46-0x00000000066E0000-0x00000000066EA000-memory.dmp

                              Filesize

                              40KB

                            • memory/3008-30-0x00000000009F0000-0x0000000000A4E000-memory.dmp

                              Filesize

                              376KB

                            • memory/3008-35-0x0000000005430000-0x0000000005496000-memory.dmp

                              Filesize

                              408KB

                            • memory/3008-36-0x0000000006130000-0x0000000006142000-memory.dmp

                              Filesize

                              72KB

                            • memory/3008-37-0x0000000006670000-0x00000000066AC000-memory.dmp

                              Filesize

                              240KB

                            • memory/3008-34-0x0000000005390000-0x0000000005422000-memory.dmp

                              Filesize

                              584KB

                            • memory/3008-33-0x0000000005880000-0x0000000005E24000-memory.dmp

                              Filesize

                              5.6MB

                            • memory/3008-29-0x0000000072A0E000-0x0000000072A0F000-memory.dmp

                              Filesize

                              4KB

                            • memory/3788-28-0x0000000000400000-0x0000000000420000-memory.dmp

                              Filesize

                              128KB

                            • memory/3788-44-0x0000000000400000-0x0000000000420000-memory.dmp

                              Filesize

                              128KB

                            • memory/3788-20-0x0000000000400000-0x0000000000420000-memory.dmp

                              Filesize

                              128KB