Analysis

  • max time kernel
    5s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 04:44

General

  • Target

    165da7719b11bea7b193d918cc6ba110N.exe

  • Size

    2.0MB

  • MD5

    165da7719b11bea7b193d918cc6ba110

  • SHA1

    ac0100dbc2ad7d90d6ca1133dfe5db6d21627640

  • SHA256

    88afed83552b6f8e563cb8dc6e62d1a30dbb521f4bb564bf6ab432fce94b0ca3

  • SHA512

    ab84a8e93ed958b1afa1802b35dc29b45c0e778dc34b1d92a00b67162d8d75364069974940edf236a22d1687fa9c0edc2f56e33184f2104d25e1e14015687e2f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY5:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y7

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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\165da7719b11bea7b193d918cc6ba110N.exe
    "C:\Users\Admin\AppData\Local\Temp\165da7719b11bea7b193d918cc6ba110N.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:468
    • 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:4880
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 548
          3⤵
          • Program crash
          PID:452
      • 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:1476
        • 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:4208
        • 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:2076
          • 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:3996
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\wIZEAx0DIoUf.bat" "
            4⤵
              PID:1956
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4784
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1452
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2756
                    • 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:4524
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CLKRrXsXa26U.bat" "
                      6⤵
                        PID:3916
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3540
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4556
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2464
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 2236
                            6⤵
                            • Program crash
                            PID:3892
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 2024
                        4⤵
                        • Program crash
                        PID:2788
                  • C:\Users\Admin\AppData\Local\Temp\165da7719b11bea7b193d918cc6ba110N.exe
                    "C:\Users\Admin\AppData\Local\Temp\165da7719b11bea7b193d918cc6ba110N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:3668
                  • 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:3580
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4880 -ip 4880
                  1⤵
                    PID:3040
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:4176
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:2448
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:556
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 520
                              3⤵
                              • Program crash
                              PID:2948
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:4444
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:5064
                              • 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:3752
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2448 -ip 2448
                              1⤵
                                PID:4380
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2076 -ip 2076
                                1⤵
                                  PID:4528
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2756 -ip 2756
                                  1⤵
                                    PID:2316
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4512
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:3532

                                      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\CLKRrXsXa26U.bat

                                        Filesize

                                        208B

                                        MD5

                                        529d0717c687a4ae4a30487e2c6b671c

                                        SHA1

                                        a0b5182dd5e9894e74b5c9c258ccd1b989bc6d47

                                        SHA256

                                        49690b4d13a611290fb0f1998fdc335a84d23fc070a126ec7c610e5cd5b78a91

                                        SHA512

                                        48b12257bc6406ae191b99ea092c6f55c367a3c17bad4c3cce81f38a8d4b165e77cdc1ab45099a6d37d3bec36c840b0f8a71670cea00a06d803d2ecf9301eed7

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

                                        Filesize

                                        405KB

                                        MD5

                                        b8ba87ee4c3fc085a2fed0d839aadce1

                                        SHA1

                                        b3a2e3256406330e8b1779199bb2b9865122d766

                                        SHA256

                                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                        SHA512

                                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                      • C:\Users\Admin\AppData\Local\Temp\wIZEAx0DIoUf.bat

                                        Filesize

                                        208B

                                        MD5

                                        71ba565a5188909e94cbc05964cbe9f3

                                        SHA1

                                        cd5f188b2837b8ed23fbd9ab9821f5aa939b1b10

                                        SHA256

                                        891d6c7a7021cc4b6acd7f501c841e900e061c950a24d8e15b2e0334aae13dfe

                                        SHA512

                                        e57c7f88bfe368e09d45fc4e94522da1d83055f098a5d9b4e3bde1e86db1f3629fa96a835958a53959b22195a8056924dab7adbc4a1fa4a2cc7f957b2b39d103

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

                                        Filesize

                                        349KB

                                        MD5

                                        b4a202e03d4135484d0e730173abcc72

                                        SHA1

                                        01b30014545ea526c15a60931d676f9392ea0c70

                                        SHA256

                                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                        SHA512

                                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                      • C:\Users\Admin\AppData\Roaming\Logs\08-14-2024

                                        Filesize

                                        224B

                                        MD5

                                        b6148db70324049149c87bf0167c9f90

                                        SHA1

                                        63269730b0446ded321bb69ce27fa6fce934360d

                                        SHA256

                                        048901cab163c2753fb4573329be0cf54857eec9d1c4af866c8cbf3687f0a5db

                                        SHA512

                                        c9cf1503d59e1967022bf931e1fbeea808f64cdd6e7dd18021f773c1ae45751d96d47e56f5d2eec8a06c116b73024239a03c9d137f21285db5c487c1b4485bcd

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

                                        Filesize

                                        2.0MB

                                        MD5

                                        1e8ded991057c8b360a4a02d42dc2f83

                                        SHA1

                                        4ea034260eb4fb9cf0b4790aa332185f0b17c215

                                        SHA256

                                        1994500b1876a34d0408505d3958724da4761b3b954ebbd5eabb97d0f05a24c2

                                        SHA512

                                        326fa6bb18ea83ec661f333faa3d43f53771531dcdd0dbf94b4a5a1de91a4b480664baabb8b9377a4aad7bd438f3028296f2e77d5ed467332c9b1f8932ebf12a

                                      • memory/468-20-0x0000000003D10000-0x0000000003D11000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/1476-34-0x0000000004B60000-0x0000000004BF2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/1476-35-0x0000000004AD0000-0x0000000004B36000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/1476-36-0x00000000058E0000-0x00000000058F2000-memory.dmp

                                        Filesize

                                        72KB

                                      • memory/1476-37-0x0000000005E20000-0x0000000005E5C000-memory.dmp

                                        Filesize

                                        240KB

                                      • memory/1476-33-0x0000000005110000-0x00000000056B4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/1476-30-0x0000000000040000-0x000000000009E000-memory.dmp

                                        Filesize

                                        376KB

                                      • memory/1476-19-0x0000000072CDE000-0x0000000072CDF000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2076-45-0x0000000006030000-0x000000000603A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/3668-29-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/3668-22-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/5064-73-0x00000000003E0000-0x0000000000400000-memory.dmp

                                        Filesize

                                        128KB

                                      • memory/5064-67-0x00000000003E0000-0x0000000000400000-memory.dmp

                                        Filesize

                                        128KB