Analysis

  • max time kernel
    5s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-08-2024 00:49

General

  • Target

    a70511977d037cdd483e138b70b608efaeb81a736634593a5107345f0b1be928.exe

  • Size

    2.0MB

  • MD5

    198393ec783414fa2a0626c72507e9e9

  • SHA1

    419f495b04728002a7d9a7e878bfb0201e9b4aac

  • SHA256

    a70511977d037cdd483e138b70b608efaeb81a736634593a5107345f0b1be928

  • SHA512

    7e8ffae2570aea7e8f83c61b785435d1bbfab3b8cdcfc16ca79306ae74eae6bcff51a3f9ae6c2406fb3a1d5ab4f9ed1b6af7d26e173e9d396dabf948a36b3b59

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY9:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YD

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 7 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 WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a70511977d037cdd483e138b70b608efaeb81a736634593a5107345f0b1be928.exe
    "C:\Users\Admin\AppData\Local\Temp\a70511977d037cdd483e138b70b608efaeb81a736634593a5107345f0b1be928.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:4880
    • 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:4388
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 556
          3⤵
          • Program crash
          PID:4968
      • 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:1632
        • 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:4472
        • 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
          PID:2576
          • 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:2096
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1Y8go6ldnBPQ.bat" "
            4⤵
              PID:4456
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3236
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4228
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3620
                    • 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:1124
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SNKOL5rFrsLH.bat" "
                      6⤵
                        PID:2344
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4636
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1936
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 2216
                          6⤵
                          • Program crash
                          PID:3244
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 1988
                      4⤵
                      • Program crash
                      PID:2764
                • C:\Users\Admin\AppData\Local\Temp\a70511977d037cdd483e138b70b608efaeb81a736634593a5107345f0b1be928.exe
                  "C:\Users\Admin\AppData\Local\Temp\a70511977d037cdd483e138b70b608efaeb81a736634593a5107345f0b1be928.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2632
                • 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:232
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4388 -ip 4388
                1⤵
                  PID:1252
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:1844
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:384
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1600
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 384 -s 520
                            3⤵
                            • Program crash
                            PID:1892
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4292
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:2680
                            • 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:1940
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 384 -ip 384
                            1⤵
                              PID:2756
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2576 -ip 2576
                              1⤵
                                PID:3032
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3620 -ip 3620
                                1⤵
                                  PID:1552
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4568
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1080

                                    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\1Y8go6ldnBPQ.bat

                                      Filesize

                                      208B

                                      MD5

                                      615d66a35ee76fbda685ffa93e408947

                                      SHA1

                                      e2a218fbea1475c8a1ae2f10a02d41c3cccdf1f5

                                      SHA256

                                      e5cb33e9fa94784b6368b1e132f48ec9340deb73970e07f1b3c7986ac2e590b2

                                      SHA512

                                      2f64ac8acbe2af5b002d30eec0f92194491beea19f21c5098b4c3fb940a9789a7d2193436e01e952e91338007a4c0be61db6940555fe8252c69f2b3d71d85b3a

                                    • C:\Users\Admin\AppData\Local\Temp\SNKOL5rFrsLH.bat

                                      Filesize

                                      208B

                                      MD5

                                      d392d71bea398cdd953a5d914d7a64e5

                                      SHA1

                                      284ad8b3b1d0b3ac28cf040f957e41fc897a9b43

                                      SHA256

                                      293cc1a7abbcb843d775f2f061583a8f691499d2ede61e49920ceed891b68d4d

                                      SHA512

                                      fc9432a44b642f416313806f1458c0af9fcebf7549c8c177fa6b31fc90c776896b4e6f01ee44d62901f8e86c9ae7da7a399366809cfd34437fafad92814a20c3

                                    • 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\08-09-2024

                                      Filesize

                                      224B

                                      MD5

                                      4ea4976c19443b07ac297ff016049d0b

                                      SHA1

                                      c6b8a2a1049b3528a83e8cd0ce6c2194f9baf3fa

                                      SHA256

                                      bc5ac55ce6696c995258b376ad71630ccacbd4a0665d4cdc9ba97bf3c681d97f

                                      SHA512

                                      fe11b34a22b27117ccbb08a41bbf8ec0b983683d4148f4096c9ce06ce230b1fb8d88af70e91a5177fd79a475c4f24f0587152c736524e57619f2acaac4cabe5f

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      4fa8e361a7fe86968dc3a6cb2ea8e4f6

                                      SHA1

                                      acc3f024c6305de8e3a7c2ed0d55a3ce6c282628

                                      SHA256

                                      75cb6397bc9a43451615d6801a3ce602b2578106f72419d9709a5092823b77ea

                                      SHA512

                                      6672ccb08bd52a9aaf50109c4b2f315ab90d2d0203486fd7128d408260d8def17ce4ceab883b5a3a29fcdc4a706a4919f650870ebaa20e4a89bf25b1a5d107c4

                                    • memory/1632-32-0x0000000000600000-0x000000000065E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/1632-34-0x0000000004F40000-0x0000000004FD2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/1632-35-0x0000000004FE0000-0x0000000005046000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1632-36-0x0000000005C30000-0x0000000005C42000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1632-37-0x0000000006170000-0x00000000061AC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1632-33-0x0000000005450000-0x00000000059F4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1632-29-0x0000000072B7E000-0x0000000072B7F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2576-45-0x0000000006960000-0x000000000696A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2632-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2632-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4880-18-0x0000000004450000-0x0000000004451000-memory.dmp

                                      Filesize

                                      4KB