Analysis

  • max time kernel
    6s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 20:45

General

  • Target

    38d924802d2318a1d21b109786c0c2fffa8e7bc6af9d041d1e8003f17bcf63b6.exe

  • Size

    2.0MB

  • MD5

    35ea1b8c1de4baf8dcb1d18912847665

  • SHA1

    02da7a077ffeb1700b23f10bb70447fcc743c5af

  • SHA256

    38d924802d2318a1d21b109786c0c2fffa8e7bc6af9d041d1e8003f17bcf63b6

  • SHA512

    7958e12561e691c5bab069d2cb4ac722baf95e44fbcbabfc4e182bbbd01e90a4228e099c51cde2815c42e9c41ddf40b0e4e10de9e06cced6a4b6ed60dbe7a09b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y+

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 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\38d924802d2318a1d21b109786c0c2fffa8e7bc6af9d041d1e8003f17bcf63b6.exe
    "C:\Users\Admin\AppData\Local\Temp\38d924802d2318a1d21b109786c0c2fffa8e7bc6af9d041d1e8003f17bcf63b6.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:3544
    • 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:5000
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2416
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 556
          3⤵
          • Program crash
          PID:1596
      • 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:2380
        • 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:4928
        • 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:4420
          • 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:3288
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5noG6lDRCxC1.bat" "
            4⤵
              PID:336
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2528
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2796
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4356
                    • 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:2732
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gvvmHS8US94B.bat" "
                      6⤵
                        PID:4848
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2964
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2252
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:1664
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4356 -s 2248
                            6⤵
                            • Program crash
                            PID:4908
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 2244
                        4⤵
                        • Program crash
                        PID:1144
                  • C:\Users\Admin\AppData\Local\Temp\38d924802d2318a1d21b109786c0c2fffa8e7bc6af9d041d1e8003f17bcf63b6.exe
                    "C:\Users\Admin\AppData\Local\Temp\38d924802d2318a1d21b109786c0c2fffa8e7bc6af9d041d1e8003f17bcf63b6.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:5080
                  • 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:5040
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5000 -ip 5000
                  1⤵
                    PID:3204
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:1248
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:2072
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4552
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 520
                              3⤵
                              • Program crash
                              PID:320
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:348
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2284
                              • 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:4052
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2072 -ip 2072
                              1⤵
                                PID:516
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4420 -ip 4420
                                1⤵
                                  PID:1884
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4356 -ip 4356
                                  1⤵
                                    PID:4820
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:2676

                                    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\5noG6lDRCxC1.bat

                                      Filesize

                                      208B

                                      MD5

                                      6e04792becadace0db4637962db2de08

                                      SHA1

                                      e49b7ff7575551dbd0f0472f35227b5eaa07a6d0

                                      SHA256

                                      018f85fb9453ade2af2ba9d419dcd3596f0730160d0df70d667177297fe73034

                                      SHA512

                                      c650c3c5837fa5284676ac726067fe825e0a234b597e64c46d3281bca45891d08c762e8df4aa26b64aa7f61e3409fb6dc7e59d2be3751db03253a6c28b03beed

                                    • C:\Users\Admin\AppData\Local\Temp\gvvmHS8US94B.bat

                                      Filesize

                                      208B

                                      MD5

                                      5af94ab71f3a22cf2bbd700b8e5b3559

                                      SHA1

                                      960622a624e6df2dd045adb2cb45444483a1a87a

                                      SHA256

                                      9bae2d61066e89c4cb6684789c1653ce175e1a329a264798e5108fbf5bf6d5d7

                                      SHA512

                                      2c964814a5aff476d80d173bf492c88718aa3c067207a2967ea4fef64f7233aa2abb248e37519530ca049feaa3f99a142d73aa4c8f4d995dca887eb5d2a9c77c

                                    • 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\10-04-2024

                                      Filesize

                                      224B

                                      MD5

                                      df1036fa8159b27dc344d7d92ada2583

                                      SHA1

                                      cb7f672ccf079eec55e2fde3406f6129515c1ed9

                                      SHA256

                                      f8021e006df8356ef2cf5c5457a105801a7a8561f9ed2e31aa2e6bdcee8b5259

                                      SHA512

                                      7b2ff8147c00e6269ca059f066d2a6e8cdeb2200bc8055f54aca939928817440d01019541e0dc53538131a1a8d3e66e72c211c7b6c8866ba0711066f78e0c242

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      ed110089ba48ee93b2d2d0b7a84f072f

                                      SHA1

                                      9d5b28f6ed39a058dec6c12aa3f3baac4d728bce

                                      SHA256

                                      71f74f40b38181b479e5be8319eb7d1ac18e785a6841b6a987d440ada1b31872

                                      SHA512

                                      a6a545c8b288be6fb1c445cb07c65bc6afcc9b8522e004158ad409174d32155f055fcdf42f7e77ab4cb8edc78b1a907f5572dfc6b8dfa7a77dd2a46b073957d5

                                    • memory/2380-34-0x0000000005140000-0x00000000051A6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2380-33-0x00000000051D0000-0x0000000005262000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2380-35-0x0000000005E60000-0x0000000005E72000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2380-36-0x00000000063A0000-0x00000000063DC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2380-32-0x0000000005650000-0x0000000005BF4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2380-31-0x00000000006E0000-0x000000000073E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3544-19-0x00000000042E0000-0x00000000042E1000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4420-44-0x00000000067B0000-0x00000000067BA000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/5080-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/5080-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB