Analysis

  • max time kernel
    4s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-08-2024 01:41

General

  • Target

    9bfd821054a41c8ff5c629ef23bdd0b0N.exe

  • Size

    2.0MB

  • MD5

    9bfd821054a41c8ff5c629ef23bdd0b0

  • SHA1

    bf9c19693271611de564b3fe71355361ff0f3aad

  • SHA256

    0850ade9bd2a4a978010ef9fff1614124b3b1335a4b7b9c23dd668cce23c1e5d

  • SHA512

    13e3ba2216221d3b90f5df7f336ebd0feee8912e33b949244da13a5208cd4ff7bc16aef489e24d4709e84a77a7ebef450b7bbc97f33d22dd148da8ef8a6a748e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYf:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YV

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\9bfd821054a41c8ff5c629ef23bdd0b0N.exe
    "C:\Users\Admin\AppData\Local\Temp\9bfd821054a41c8ff5c629ef23bdd0b0N.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:4616
    • 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:3000
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4516
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3000 -s 548
          3⤵
          • Program crash
          PID:3896
      • 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:2604
        • 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:2728
        • 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:988
          • 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:2036
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PndLvVERFFNw.bat" "
            4⤵
              PID:2796
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1312
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4420
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4328
                    • 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:1312
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\w2cPI7VOIbBQ.bat" "
                      6⤵
                        PID:2044
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:436
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:64
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:536
                              • 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:2604
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 2236
                            6⤵
                            • Program crash
                            PID:3032
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 2256
                        4⤵
                        • Program crash
                        PID:2512
                  • C:\Users\Admin\AppData\Local\Temp\9bfd821054a41c8ff5c629ef23bdd0b0N.exe
                    "C:\Users\Admin\AppData\Local\Temp\9bfd821054a41c8ff5c629ef23bdd0b0N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1588
                  • 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:800
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3000 -ip 3000
                  1⤵
                    PID:4708
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3956,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3988 /prefetch:8
                    1⤵
                      PID:436
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:2716
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:4712
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:4352
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 520
                                3⤵
                                • Program crash
                                PID:1932
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:3540
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:4408
                                • 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:1208
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4712 -ip 4712
                                1⤵
                                  PID:180
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 988 -ip 988
                                  1⤵
                                    PID:2252
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4328 -ip 4328
                                    1⤵
                                      PID:2848
                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                      1⤵
                                        PID:3856
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:1600

                                        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\PndLvVERFFNw.bat

                                          Filesize

                                          208B

                                          MD5

                                          4b4fec251881d8a8422a9c8bf30f92de

                                          SHA1

                                          d79e86e6403f065e49a8faa67fc29b220e89ae1d

                                          SHA256

                                          73ecf3993d4fb70bcfb8133c55437b5885b32fbfd12181d0683c09b9d71cb081

                                          SHA512

                                          83325ceb08c32440cfb35258d6b1fe076b00b7b8c325f3356869298ce24ac6ff145f80cc38adbdfd7b26b700d27d5c60f2fdfd4792f23258c2a74f8b34f34549

                                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                          Filesize

                                          405KB

                                          MD5

                                          b8ba87ee4c3fc085a2fed0d839aadce1

                                          SHA1

                                          b3a2e3256406330e8b1779199bb2b9865122d766

                                          SHA256

                                          4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                          SHA512

                                          7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                        • C:\Users\Admin\AppData\Local\Temp\w2cPI7VOIbBQ.bat

                                          Filesize

                                          208B

                                          MD5

                                          b966679e6201a00fdb500f6d37db57c5

                                          SHA1

                                          a544897e76848c10d4dbb3908fccf0c05b784b88

                                          SHA256

                                          9d0eba8df603eda553ca8fa627b16a60dc5c9ed44fef4bd4bd1a6379d589f212

                                          SHA512

                                          c59aef681acef2a1ce82ed949cfab2c2d8316ae7609956247d1c8456f124d3274bc0579de939c66163d43be873a3570bca461671203af259226bf63fa8b16d27

                                        • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                          Filesize

                                          349KB

                                          MD5

                                          b4a202e03d4135484d0e730173abcc72

                                          SHA1

                                          01b30014545ea526c15a60931d676f9392ea0c70

                                          SHA256

                                          7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                          SHA512

                                          632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                        • C:\Users\Admin\AppData\Roaming\Logs\08-29-2024

                                          Filesize

                                          224B

                                          MD5

                                          9d9e0079fba51d36b5532461f777e925

                                          SHA1

                                          6381f2cb86995af44de4831dd2fde5c496e9e01f

                                          SHA256

                                          41f40621fa5f7cd58ffc03b32ab0d1799cfac68d52b12bfd72dc0b7eeed6c284

                                          SHA512

                                          a822e1e1e1eabc2227e82713a47b3cce8d96bc9d0df3c89cd66fb9ea26f39ca0cc98b7dbc11b5362ceb337c43305fcf82faad0c9277b1da09a71639c6d57a0d4

                                        • C:\Users\Admin\AppData\Roaming\Logs\08-29-2024

                                          Filesize

                                          224B

                                          MD5

                                          4d58d88dc64f2134c5ce7fa031d3f6bc

                                          SHA1

                                          a9352425328f464da15e6525d16e092e154ce097

                                          SHA256

                                          5dcbe8a78ad634963a09300afec1e01a9c06bb5f86315e9dacf020f4536c6caa

                                          SHA512

                                          8f1cb0fd513b837a8480b37774d3f7229fbde976f490ebc6d90f1a0efa88272faf5b227f510d17801b7cd1ec3b8b5936dd7ecba9b785bd2cf75182dfb410cdd8

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

                                          Filesize

                                          2.0MB

                                          MD5

                                          5c163e64c154cf1d22eb938ebb7340ef

                                          SHA1

                                          c209bbacef2c06df5b6796a7f72093024171bfde

                                          SHA256

                                          13e972b1388ecdcb8522eec5f5fd6ab6597a232faae11b4594fe58900c894b25

                                          SHA512

                                          2bb971f97b5889fb37c5c4f068c08989dee0adb539b9d161ceafa045016f09782601b7228e575da3650ea1031aba7d7471e97c65290be64e11c6c3246b17e6e4

                                        • memory/988-45-0x00000000064B0000-0x00000000064BA000-memory.dmp

                                          Filesize

                                          40KB

                                        • memory/1588-21-0x0000000000360000-0x0000000000380000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/1588-29-0x0000000000360000-0x0000000000380000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/2604-36-0x00000000065E0000-0x00000000065F2000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/2604-37-0x0000000006B20000-0x0000000006B5C000-memory.dmp

                                          Filesize

                                          240KB

                                        • memory/2604-35-0x00000000058C0000-0x0000000005926000-memory.dmp

                                          Filesize

                                          408KB

                                        • memory/2604-34-0x0000000005820000-0x00000000058B2000-memory.dmp

                                          Filesize

                                          584KB

                                        • memory/2604-31-0x0000000005EF0000-0x0000000006494000-memory.dmp

                                          Filesize

                                          5.6MB

                                        • memory/2604-30-0x0000000000EA0000-0x0000000000EFE000-memory.dmp

                                          Filesize

                                          376KB

                                        • memory/2604-19-0x0000000072D1E000-0x0000000072D1F000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2716-90-0x0000000076D60000-0x0000000076E33000-memory.dmp

                                          Filesize

                                          844KB

                                        • memory/2716-89-0x00000000749B0000-0x0000000074E00000-memory.dmp

                                          Filesize

                                          4.3MB

                                        • memory/4408-67-0x0000000000130000-0x0000000000150000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4408-73-0x0000000000130000-0x0000000000150000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/4616-20-0x0000000002850000-0x0000000002851000-memory.dmp

                                          Filesize

                                          4KB