Analysis

  • max time kernel
    6s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 02:26

General

  • Target

    Adobe Download Manager.exe

  • Size

    2.0MB

  • MD5

    fdb4791c0883935dd02cc7edafca23cf

  • SHA1

    05d4862a798647a2ff0999deb00efae430ebee27

  • SHA256

    56cf98c5ed8c5335f981544efebfd53e14ba0e168e4519125d20a492b82ac3c6

  • SHA512

    49e4577493d47d0227f1ca096c5ddced4f06eece4097961b3dcbf0a50eedbe7c9f48bc2bcc18d6a9042f7d14a696428e9d02ad0f87a73e6acf18ba2c636b4710

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYO:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YQ

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 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\Adobe Download Manager.exe
    "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.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:1524
    • 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:1780
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 548
          3⤵
          • Program crash
          PID:1972
      • 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:1504
        • 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:4868
        • 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:3696
          • 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:1328
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gemPAdEujL36.bat" "
            4⤵
              PID:1236
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3164
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4464
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3204
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 2244
                  4⤵
                  • Program crash
                  PID:4340
            • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
              "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4988
            • 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:1968
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1780 -ip 1780
            1⤵
              PID:3932
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:1216
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:1956
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:4540
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 520
                        3⤵
                        • Program crash
                        PID:2396
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:3624
                        • 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:4480
                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                          3⤵
                            PID:3396
                            • 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:4168
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XAsvUC5f1cx4.bat" "
                              4⤵
                                PID:760
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  5⤵
                                    PID:4560
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    5⤵
                                    • System Network Configuration Discovery: Internet Connection Discovery
                                    • Runs ping.exe
                                    PID:4428
                                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                    5⤵
                                      PID:2812
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -u -p 3396 -s 2268
                                    4⤵
                                    • Program crash
                                    PID:3240
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:3856
                                • 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:1376
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3696 -ip 3696
                                1⤵
                                  PID:4940
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1956 -ip 1956
                                  1⤵
                                    PID:2324
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3396 -ip 3396
                                    1⤵
                                      PID:5080
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2812 -ip 2812
                                      1⤵
                                        PID:752
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:2652
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:2928
                                          • C:\Windows\system32\sihost.exe
                                            sihost.exe
                                            1⤵
                                              PID:1656

                                            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\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                              Filesize

                                              701B

                                              MD5

                                              5de8527438c860bfa3140dc420a03e52

                                              SHA1

                                              235af682986b3292f20d8d71a8671353f5d6e16d

                                              SHA256

                                              d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                              SHA512

                                              77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                            • C:\Users\Admin\AppData\Local\Temp\XAsvUC5f1cx4.bat

                                              Filesize

                                              208B

                                              MD5

                                              d2ca0821dcee5a699ea638f09e159481

                                              SHA1

                                              d982a955d374523fa8e118d28f90d3b48b2e8bd6

                                              SHA256

                                              d41cdb8c4bfc811ca7f9af8a0c1c29b7c8a29b8705a35d84ce94f7dbfd58afb1

                                              SHA512

                                              27427cca0d3ddb85b75f03f1a2c94b44f44eb44924465da701c1b4bf8da4390a92f6bd6d55e98a89ef56046c752eca00c6075e0148d23e28954f85aa144bb289

                                            • C:\Users\Admin\AppData\Local\Temp\gemPAdEujL36.bat

                                              Filesize

                                              208B

                                              MD5

                                              638367dd2ea34e627628723b52517124

                                              SHA1

                                              93f96c0308270a30a6ededb60637d369aa4a72d8

                                              SHA256

                                              882cd6c7dd79edc968c8874c30fb8fe518d2a871a1f4530494e0e895448adedc

                                              SHA512

                                              8b41e12c3d335d91a350d6e62280783982edb4d9e67765931a62878ebc2f368aa039a8bab09e8c5855c8c03bfd5fc152348c12157f4da3b01cb200ee73578f6c

                                            • 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\09-17-2024

                                              Filesize

                                              224B

                                              MD5

                                              ca641257678d3073ee4e0a5fb47899c4

                                              SHA1

                                              49f8e9d189c8ff5ac882438a51e304a6ae9009eb

                                              SHA256

                                              29ac02eb9c5237fbcabd9a1b8dc253831ec21cc91b6c8c156c32a1dc86d33dc0

                                              SHA512

                                              09e6c97306ba43610e1603f5012e9aabf330dfafeeeb1da7edea08ed0da03aea1d4df0e5e1dad72e68e32db742ee493a196ec9b89ff2eb28d8baf2b57f66638f

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

                                              Filesize

                                              2.0MB

                                              MD5

                                              6e25cd018a3f4f9aaac419478e73927f

                                              SHA1

                                              63c5b1eecc8f2544f511b0f0ee73ac5f278ec404

                                              SHA256

                                              5243539b12137cde05a8141d22e32bc37b86242b79800eb6cd6f7747b79a95ee

                                              SHA512

                                              657030447580da2bff94fecd5fa7fd6ebdf9b49e3e1ecb888d00a6964011d68a63235a5b7dd0034eba97f47a98f514afd198e00aa7f8b17092211b3a5dc8537a

                                            • memory/1504-29-0x000000007371E000-0x000000007371F000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1504-36-0x0000000006170000-0x0000000006182000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/1504-37-0x00000000065B0000-0x00000000065EC000-memory.dmp

                                              Filesize

                                              240KB

                                            • memory/1504-35-0x0000000005410000-0x0000000005476000-memory.dmp

                                              Filesize

                                              408KB

                                            • memory/1504-34-0x0000000005350000-0x00000000053E2000-memory.dmp

                                              Filesize

                                              584KB

                                            • memory/1504-33-0x00000000059C0000-0x0000000005F64000-memory.dmp

                                              Filesize

                                              5.6MB

                                            • memory/1504-32-0x0000000000A30000-0x0000000000A8E000-memory.dmp

                                              Filesize

                                              376KB

                                            • memory/1524-19-0x0000000003450000-0x0000000003451000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1524-93-0x0000000077690000-0x0000000077696000-memory.dmp

                                              Filesize

                                              24KB

                                            • memory/3696-45-0x0000000005F20000-0x0000000005F2A000-memory.dmp

                                              Filesize

                                              40KB

                                            • memory/3856-77-0x0000000000400000-0x0000000000420000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/3856-71-0x0000000000400000-0x0000000000420000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/4988-20-0x00000000003A0000-0x00000000003C0000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/4988-28-0x00000000003A0000-0x00000000003C0000-memory.dmp

                                              Filesize

                                              128KB