Analysis

  • max time kernel
    4s
  • max time network
    86s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 03:00

General

  • Target

    964221e2d1782fa804dc6e965ee4f920N.exe

  • Size

    2.0MB

  • MD5

    964221e2d1782fa804dc6e965ee4f920

  • SHA1

    be0fcc6e0e64cee8bf68ca0f8665b06dc26933e6

  • SHA256

    b3c2f56de0655f102fe52ba1aec7369f7a79bf37f563c5f1efe41211d26b2d09

  • SHA512

    ab4a683dc080d1c0f5f584a20631255d47e2745305c5e116f89e5cdb636f611fd8cf28b62acca95a8ab4c224a9bc62b21208b81722383323d1357da777305bc6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYu:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y0

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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 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\964221e2d1782fa804dc6e965ee4f920N.exe
    "C:\Users\Admin\AppData\Local\Temp\964221e2d1782fa804dc6e965ee4f920N.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:1432
    • 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:3472
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 556
          3⤵
          • Program crash
          PID:3652
      • 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:4892
        • 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:2340
        • 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:1856
          • 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:2344
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Z8TPndcivxZk.bat" "
            4⤵
              PID:2020
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1852
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:5072
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4612
                    • 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:2516
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 2260
                  4⤵
                  • Program crash
                  PID:3372
            • C:\Users\Admin\AppData\Local\Temp\964221e2d1782fa804dc6e965ee4f920N.exe
              "C:\Users\Admin\AppData\Local\Temp\964221e2d1782fa804dc6e965ee4f920N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:4756
            • 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:3484
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3472 -ip 3472
            1⤵
              PID:3968
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1856 -ip 1856
              1⤵
                PID:3432
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:1916
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:344
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:4668
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 344 -s 520
                          3⤵
                          • Program crash
                          PID:5028
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:396
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 748
                            3⤵
                            • Program crash
                            PID:116
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:2828
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 344 -ip 344
                          1⤵
                            PID:1272
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 396 -ip 396
                            1⤵
                              PID:3588
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:4448
                              • C:\Windows\system32\dwm.exe
                                "dwm.exe"
                                1⤵
                                  PID:2368
                                • C:\Windows\system32\dwm.exe
                                  "dwm.exe"
                                  1⤵
                                    PID:2452
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:3840
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:5104
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:5004
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:5032

                                          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\Temp\Z8TPndcivxZk.bat

                                            Filesize

                                            208B

                                            MD5

                                            099b6b738cf96f862bd3fb3f908b0619

                                            SHA1

                                            95cb5104249c83c2c193b443b56ada2bb561934f

                                            SHA256

                                            881a9f8fa4f10c3345a79d7cd5f505968baa0cff4d98971ba6437f65a60a7b33

                                            SHA512

                                            f7e44a8115b0f1cf69266df17fbaaa3cf56ef295bb80d44302110debab90809cca916613beac1f3b4f535fb07dcea599a1ba66077f69a4f4afb7c7bb505576f1

                                          • 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\08-18-2024

                                            Filesize

                                            224B

                                            MD5

                                            01e3e7069f763997c4e7d62348bf9351

                                            SHA1

                                            0d0d5be15c2cad0553def2ad0b71d74a3842bd76

                                            SHA256

                                            7b7114daa70350adec6e455ce87ad58f4e711042fcc94d8806d1a2ebbafec3bd

                                            SHA512

                                            c6e2eee8cf76319f5b0b50ec7b64a635332f3abcc0c5ac3261d3e49887b64dcdfbccd2f125812e8d55b50acbfd7765375d30ceb15e20a5503a81f89b7748f548

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

                                            Filesize

                                            2.0MB

                                            MD5

                                            3c8dd70aaa40d894561bdb407ce07c4d

                                            SHA1

                                            36d1e6e0ff4e7de9e7762451fcd5ffaf8ca6dc01

                                            SHA256

                                            dfe064a8fc2cfd4be51076b2a5411fe9edbc371888d9b0b2fabe60e0c0e99b6e

                                            SHA512

                                            d222cdc6c00c015f996dee7dfb7e2e2bd287557280a4b24151fa1eae1de20c0d2eaf2259eabc982b1677d33dae7da14fd41727a362805ac416208b3be7c1dd95

                                          • memory/344-82-0x00007FFC61CD0000-0x00007FFC61EC5000-memory.dmp

                                            Filesize

                                            2.0MB

                                          • memory/1432-19-0x0000000002670000-0x0000000002671000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1856-45-0x0000000006E30000-0x0000000006E3A000-memory.dmp

                                            Filesize

                                            40KB

                                          • memory/4756-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4756-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4892-27-0x00000000737EE000-0x00000000737EF000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4892-37-0x0000000006B60000-0x0000000006B9C000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/4892-36-0x0000000006620000-0x0000000006632000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/4892-35-0x0000000005810000-0x0000000005876000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/4892-34-0x00000000058D0000-0x0000000005962000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/4892-33-0x0000000005DC0000-0x0000000006364000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/4892-32-0x0000000000EF0000-0x0000000000F4E000-memory.dmp

                                            Filesize

                                            376KB