Analysis

  • max time kernel
    5s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-07-2024 03:21

General

  • Target

    5cd8552578a1a8712f7c8c718152c370N.exe

  • Size

    2.0MB

  • MD5

    5cd8552578a1a8712f7c8c718152c370

  • SHA1

    17759b354c32f72b6a100cb70d5cac4999aad554

  • SHA256

    71ec5c376fe72ffcb07115ec61c9e3d3a032c97362580b225c6cab8105bc24f3

  • SHA512

    e8fc08a561f117e9414087f613d1f0a8fa68efbf7f14eaba3951bfb6b94b2def88e2a504a93e0489de5d069985f2c12124600b98cd09500b76a49ad46d0f74a2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYh:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yr

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
  • 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\5cd8552578a1a8712f7c8c718152c370N.exe
    "C:\Users\Admin\AppData\Local\Temp\5cd8552578a1a8712f7c8c718152c370N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1252
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 548
          3⤵
          • Program crash
          PID:4600
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1040
        • 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:3172
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4668
          • 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:3176
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IdmaicCFVSU8.bat" "
            4⤵
              PID:972
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2684
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:3708
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3248
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 2264
                  4⤵
                  • Program crash
                  PID:1688
            • C:\Users\Admin\AppData\Local\Temp\5cd8552578a1a8712f7c8c718152c370N.exe
              "C:\Users\Admin\AppData\Local\Temp\5cd8552578a1a8712f7c8c718152c370N.exe"
              2⤵
                PID:804
              • 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:1972
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1252 -ip 1252
              1⤵
                PID:3180
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4668 -ip 4668
                1⤵
                  PID:2012
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:2612
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:1292
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:1552
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1292 -s 520
                            3⤵
                            • Program crash
                            PID:1496
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4012
                            • 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:2204
                            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                              3⤵
                                PID:3288
                                • 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:3748
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bjlF9b3V8TWY.bat" "
                                  4⤵
                                    PID:112
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 65001
                                      5⤵
                                        PID:2832
                                      • C:\Windows\SysWOW64\PING.EXE
                                        ping -n 10 localhost
                                        5⤵
                                        • Runs ping.exe
                                        PID:2448
                                      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                        5⤵
                                          PID:4396
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -u -p 3288 -s 2264
                                        4⤵
                                        • Program crash
                                        PID:384
                                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                    2⤵
                                      PID:2456
                                    • 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:3432
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1292 -ip 1292
                                    1⤵
                                      PID:4784
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 3288 -ip 3288
                                      1⤵
                                        PID:3812
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:4668
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:1792

                                          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\IdmaicCFVSU8.bat

                                            Filesize

                                            208B

                                            MD5

                                            456a7b9ab1a57ffb6a3e4edd8d388384

                                            SHA1

                                            d6c8f278fcbd547942136d508f240e0e2806d06a

                                            SHA256

                                            25b710f18ff5f44b27efa57d106743a8fc772eb82cb1b7fdaa186af5f4920394

                                            SHA512

                                            09f30a3832ac3a01695cf11d3e5b0234411b5fb720632e29ca84d8226f43600512af095a079575bab4972b681655da1ea9e9be84c573b301a91fe52e84941efa

                                          • C:\Users\Admin\AppData\Local\Temp\bjlF9b3V8TWY.bat

                                            Filesize

                                            208B

                                            MD5

                                            7e27d87aaf2f09ab145dfdffabbc1e4d

                                            SHA1

                                            d7bafaafd67b7e9af08d5fd4b692b6691e99bd9c

                                            SHA256

                                            cdaa8bc044e7c4fb1903dd8c1e07b49a7140f759122f405f81725cf68344d8b3

                                            SHA512

                                            2538765e3c92c2dce9a4ef3622dc3c394f99b864ccf4ebd73002322c429f16b21990ba6de9e1d6bea77045153717c3fddad57d3c4f056946e37582ed4cbdd610

                                          • 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\07-16-2024

                                            Filesize

                                            224B

                                            MD5

                                            036dc2e0bf83e8fea527609db842a6d5

                                            SHA1

                                            e774d05b5e036f8968233c67d6728b1bb30e0110

                                            SHA256

                                            176a8827da973886fc9eebbb543f04de5cee2f73f29a9f14caebdb4f5b2ca502

                                            SHA512

                                            1dbf2740551b6f905a8f7b404782cf5ae83398161844c19713364883c241ec66d8bf76f5b45385344610d004a0aaf3af5ef29873609494f974496dd1a2b148bd

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

                                            Filesize

                                            2.0MB

                                            MD5

                                            e3f98f7b242ca0c5158ff0c223d4568d

                                            SHA1

                                            21695398e282a6e618012ab87947235821b4e492

                                            SHA256

                                            54185861217f19cb8b830cf6df398031b2ef97c9597ff4af4cbd9ee447c15507

                                            SHA512

                                            31d6535a2f329e9831f007464de07fa913b0e43e34fc1addbce29cc2a84a2015ff48c48cd0667f6424759ea578b96fc300fa2d57b26c45bba056e0a04d7543b5

                                          • memory/804-20-0x00000000014B0000-0x00000000014D0000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/804-28-0x00000000014B0000-0x00000000014D0000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/1040-29-0x00000000734FE000-0x00000000734FF000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1040-37-0x00000000068A0000-0x00000000068DC000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/1040-36-0x0000000005CA0000-0x0000000005CB2000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/1040-35-0x0000000005630000-0x0000000005696000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/1040-34-0x0000000005720000-0x00000000057B2000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/1040-33-0x0000000005CD0000-0x0000000006274000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/1040-30-0x0000000000BD0000-0x0000000000C2E000-memory.dmp

                                            Filesize

                                            376KB

                                          • memory/2456-71-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/2652-19-0x0000000001E20000-0x0000000001E21000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4668-45-0x00000000061A0000-0x00000000061AA000-memory.dmp

                                            Filesize

                                            40KB