Analysis

  • max time kernel
    5s
  • max time network
    123s
  • 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 01:38

General

  • Target

    877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe

  • Size

    2.0MB

  • MD5

    b83b407650a4430de314fab0699bee00

  • SHA1

    daa90ab02e6073469b64ff0ff17aeb6e11cdb6f4

  • SHA256

    877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4

  • SHA512

    4bc00830b9f31f69fe45584b06373527e0941d3a967f76ce681a05fa07b1d1f0ac7ffed1f1a926bdece3c78d6ea5d5f6b02b9ce29e97899afb4c968d850497b6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YT

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 6 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\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe
    "C:\Users\Admin\AppData\Local\Temp\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.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:3924
    • 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:2948
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3572
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2948 -s 548
          3⤵
          • Program crash
          PID:2368
      • 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:1376
        • 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:3000
        • 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:3360
          • 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:1796
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3QTRvzolWySI.bat" "
            4⤵
              PID:3124
              • C:\Windows\System32\Conhost.exe
                \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                5⤵
                  PID:3000
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:2168
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:5076
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:2380
                      • 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:964
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2aalYhkUz3sP.bat" "
                        6⤵
                          PID:1828
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            7⤵
                              PID:3352
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              7⤵
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:2504
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              7⤵
                                PID:3812
                                • 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
                                  8⤵
                                  • Scheduled Task/Job: Scheduled Task
                                  PID:1984
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 2248
                              6⤵
                              • Program crash
                              PID:2636
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3360 -s 1984
                          4⤵
                          • Program crash
                          PID:1972
                    • C:\Users\Admin\AppData\Local\Temp\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe
                      "C:\Users\Admin\AppData\Local\Temp\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe"
                      2⤵
                      • System Location Discovery: System Language Discovery
                      PID:5024
                    • 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:5104
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2948 -ip 2948
                    1⤵
                      PID:4280
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4408
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:1260
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:5028
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 520
                                3⤵
                                • Program crash
                                PID:432
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:1964
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:5104
                                • 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:1984
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1260 -ip 1260
                                1⤵
                                  PID:2864
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3360 -ip 3360
                                  1⤵
                                    PID:536
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2380 -ip 2380
                                    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:4472
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:3804

                                        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\2aalYhkUz3sP.bat

                                          Filesize

                                          208B

                                          MD5

                                          e10a36fae7890449d8f873dab37fe8d9

                                          SHA1

                                          d6ba49d895693ce437e63c501654a37924594095

                                          SHA256

                                          799c85e052a02d16133eb530c709988e7c063ddd68f5622d4d9fbed700016797

                                          SHA512

                                          911247f788006bca20a38e8dc98ec38186581efac8ed6f67a868dcdb894ffcc013e2c0ffd1d32543baca4e9e3002d5d003f00ffa575d7076fd834c2b1c774481

                                        • C:\Users\Admin\AppData\Local\Temp\3QTRvzolWySI.bat

                                          Filesize

                                          208B

                                          MD5

                                          12dba5230535ed17751ad41b6e45b476

                                          SHA1

                                          1f48ef5b28b9ca74b373d0e63cdfcc45f2ee4206

                                          SHA256

                                          adfa74128f536e2a2de9906ac5c3289b5c268f32297fa85285894394d6206183

                                          SHA512

                                          3985b49a73c8e65790f363c9b8cfc7eecabffc3bd7b02440712316b32e59908b6697fd9e6936bd679fd4ae970cc42fed362b82c3c3c2674a4d7a2df8c21c1235

                                        • 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

                                          e5486acd7237728cb5f4f5ed6239b848

                                          SHA1

                                          7ceffd01597b2767e7d6755ff81db723d7597671

                                          SHA256

                                          7b0de4c2e455842c1d2503af074e0393474a3801a61596f8982b574f91597ef1

                                          SHA512

                                          f2a58b362aea350d99d1bd6c5c87272f8aec460fa9734fbf5d1408ee6a2dc9eadb7085ef76947e4905f85e73e810d111b43df709dfee54733deded0be60fbf6b

                                        • C:\Users\Admin\AppData\Roaming\Logs\08-30-2024

                                          Filesize

                                          224B

                                          MD5

                                          776a634ae583b39a50c132136dffbfc3

                                          SHA1

                                          70e5e3e3f7309cb855925576811a556e9889c176

                                          SHA256

                                          09f5972b516f5216b20485640b8e3d375ea106d1821b136d00024a34adf644cd

                                          SHA512

                                          ee8004dc558964c98ebf8c78b99d06f9a9e4deaeb9aea4ca8f96d5c19fd71f340285d065c6c5cdf13962449c7daf7b5e0b5607a1ada78d8cac166a79f384b5f3

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          09a23f068499c0b3059c608ddee2e438

                                          SHA1

                                          396fad660306f79119d44f6ae73cdf07c3ba39ed

                                          SHA256

                                          694951eb9e84675821f9ad3cae14e0436f18e516834d19cfab44a074b5d9289c

                                          SHA512

                                          337ee192e20777ed4f6c3f1a8048ce33eb9bbdc45bf0600c67ae2651879b7d7375e6b3f658f8387a346bc45ce58cfeac525392aab22c095bc2c80549cdb7b7b5

                                        • memory/1376-30-0x0000000000A50000-0x0000000000AAE000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/1376-35-0x0000000005470000-0x00000000054D6000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/1376-36-0x0000000006070000-0x0000000006082000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1376-37-0x00000000065B0000-0x00000000065EC000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/1376-34-0x0000000005370000-0x0000000005402000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/1376-33-0x0000000005820000-0x0000000005DC4000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/1376-29-0x0000000072C7E000-0x0000000072C7F000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3360-45-0x0000000006540000-0x000000000654A000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/3924-19-0x0000000001040000-0x0000000001041000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/5024-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/5024-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                          Filesize

                                          128KB