Analysis

  • max time kernel
    5s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-08-2024 04:45

General

  • Target

    f2c6ccdf457164522f19db6eb0e1958675422fe772f81d1a8cbd90ce1bc7005c.exe

  • Size

    2.0MB

  • MD5

    75f7501389e5b53cae221a7b85366e4d

  • SHA1

    5780f260092e7a43c5e3f50e00bc493b533a6207

  • SHA256

    f2c6ccdf457164522f19db6eb0e1958675422fe772f81d1a8cbd90ce1bc7005c

  • SHA512

    f5207b0fa821a45e5a79e1b1e63c3d0db3d1076b892389a1390fcb264e4e1bdf610e3aed0ceb191e31fff2fda603cf92ea1cd2b3a534579ef687106932f00959

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

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
  • 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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\f2c6ccdf457164522f19db6eb0e1958675422fe772f81d1a8cbd90ce1bc7005c.exe
    "C:\Users\Admin\AppData\Local\Temp\f2c6ccdf457164522f19db6eb0e1958675422fe772f81d1a8cbd90ce1bc7005c.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:3652
    • 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:4276
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4276 -s 548
          3⤵
          • Program crash
          PID:2468
      • 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:4604
        • 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:2592
        • 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:964
          • 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:2984
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8Ql7YwbGwfuD.bat" "
            4⤵
              PID:4132
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2012
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2056
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3836
                    • 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:4236
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 1980
                  4⤵
                  • Program crash
                  PID:4744
            • C:\Users\Admin\AppData\Local\Temp\f2c6ccdf457164522f19db6eb0e1958675422fe772f81d1a8cbd90ce1bc7005c.exe
              "C:\Users\Admin\AppData\Local\Temp\f2c6ccdf457164522f19db6eb0e1958675422fe772f81d1a8cbd90ce1bc7005c.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:1324
            • 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:4628
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4276 -ip 4276
            1⤵
              PID:3288
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 964 -ip 964
              1⤵
                PID:3376
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:2968
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:1064
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:1856
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1064 -s 520
                          3⤵
                          • Program crash
                          PID:2736
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:3864
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:1232
                          • 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:1088
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1064 -ip 1064
                          1⤵
                            PID:4220
                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                            1⤵
                              PID:3396
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:496

                              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\8Ql7YwbGwfuD.bat

                                Filesize

                                208B

                                MD5

                                b4866b47e4902c2db35d960ffa91866e

                                SHA1

                                e90a5ce3c5072a62b70bfc10bc3ea9fda8cb7f8a

                                SHA256

                                936407ce3eb5ba2098d8f98536bdb1c34ec7b2a6fbefa7d488dfadda6f562e13

                                SHA512

                                72d4ea75a720209432022fb9c75482e965d60bad4350cb8aba8271553cceadf2bfccab42aab8d273f8107bc9f48079adfb267a311bbc240eb53cf22f2d410e5b

                              • 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\08-07-2024

                                Filesize

                                224B

                                MD5

                                f12e0c3343eee1d1e7e1294ca5bcc952

                                SHA1

                                5544144aea54c3a6a6d64ada110f6e531868c239

                                SHA256

                                37977dd44a1a10ba6497cd2ef40b93d3b57d602418a7320ee62d5741fb8a7ed8

                                SHA512

                                8411336cbe2a46fc96593135a39645566c34d36c76d3e90b371eb62d38bc43ae4c57e2aa4a483242979b825a58ea428ee3b1f723e78231c78de25aa9e58421ff

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

                                Filesize

                                2.0MB

                                MD5

                                29103b3ed095861ffa54691e75d07f72

                                SHA1

                                063803880459133e241f92164e0f14625ac271be

                                SHA256

                                0d512dae63590dfb11d347441c444c305a8a0337dc78c7686588ab801e830a8d

                                SHA512

                                17fed0a658cd04001236c2f39207b6e967b0c104f0216eb22fb5e473b29079789e10f0f5a16d32c0a4c62c698589d0e2b70cc7457f76ba2f6914d41aa259c742

                              • memory/964-45-0x00000000062F0000-0x00000000062FA000-memory.dmp

                                Filesize

                                40KB

                              • memory/1232-80-0x0000000000A80000-0x0000000000AA0000-memory.dmp

                                Filesize

                                128KB

                              • memory/1232-74-0x0000000000A80000-0x0000000000AA0000-memory.dmp

                                Filesize

                                128KB

                              • memory/1324-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1324-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/3652-86-0x0000000076F10000-0x0000000076FEC000-memory.dmp

                                Filesize

                                880KB

                              • memory/3652-19-0x0000000003C50000-0x0000000003C51000-memory.dmp

                                Filesize

                                4KB

                              • memory/4604-29-0x000000007389E000-0x000000007389F000-memory.dmp

                                Filesize

                                4KB

                              • memory/4604-37-0x00000000064F0000-0x000000000652C000-memory.dmp

                                Filesize

                                240KB

                              • memory/4604-36-0x00000000057F0000-0x0000000005802000-memory.dmp

                                Filesize

                                72KB

                              • memory/4604-35-0x00000000053D0000-0x0000000005436000-memory.dmp

                                Filesize

                                408KB

                              • memory/4604-34-0x0000000005330000-0x00000000053C2000-memory.dmp

                                Filesize

                                584KB

                              • memory/4604-33-0x0000000005840000-0x0000000005DE4000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/4604-30-0x0000000000980000-0x00000000009DE000-memory.dmp

                                Filesize

                                376KB