Analysis

  • max time kernel
    5s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2024 02:42

General

  • Target

    a7c50465228b8a87dc31914f11d0720d33b2191171e9674c32cc774815dbd331N.exe

  • Size

    2.0MB

  • MD5

    35d64806c83e40323809a0f5d65cb010

  • SHA1

    89797682194294de224ce2aa895b7d4c437a831f

  • SHA256

    a7c50465228b8a87dc31914f11d0720d33b2191171e9674c32cc774815dbd331

  • SHA512

    dc570864b8fbf42766fde1b1da0f56bb4e53129ba06daa3d732f81acdeabfe39de323b78940cb0402cff296355b23fa783954b524269b72a3f346e807c9d63f5

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYj:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y1

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 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\a7c50465228b8a87dc31914f11d0720d33b2191171e9674c32cc774815dbd331N.exe
    "C:\Users\Admin\AppData\Local\Temp\a7c50465228b8a87dc31914f11d0720d33b2191171e9674c32cc774815dbd331N.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:5096
    • 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:2804
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 556
          3⤵
          • Program crash
          PID:4944
      • 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:2248
        • 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:3760
        • 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:556
          • 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:3088
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\z4KFlPP0f4kw.bat" "
            4⤵
              PID:1348
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1060
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3852
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4168
                    • 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:1084
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CYC8oaLUqRmH.bat" "
                      6⤵
                        PID:3424
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3148
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4496
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4168 -s 2220
                          6⤵
                          • Program crash
                          PID:404
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 2216
                      4⤵
                      • Program crash
                      PID:908
                • C:\Users\Admin\AppData\Local\Temp\a7c50465228b8a87dc31914f11d0720d33b2191171e9674c32cc774815dbd331N.exe
                  "C:\Users\Admin\AppData\Local\Temp\a7c50465228b8a87dc31914f11d0720d33b2191171e9674c32cc774815dbd331N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:4012
                • 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:528
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2804 -ip 2804
                1⤵
                  PID:1096
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:396
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:2412
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:3380
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2412 -s 520
                            3⤵
                            • Program crash
                            PID:2368
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:1684
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:512
                            • 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:1528
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2412 -ip 2412
                            1⤵
                              PID:3104
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 556 -ip 556
                              1⤵
                                PID:3616
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4168 -ip 4168
                                1⤵
                                  PID:1852
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:2028
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4796

                                    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\CYC8oaLUqRmH.bat

                                      Filesize

                                      208B

                                      MD5

                                      3d9c0e853c98e2f2de5c60ec7aec94f1

                                      SHA1

                                      380d4046ce9801fec66dac60c3d29ba1f8107b08

                                      SHA256

                                      f8e24d47d116c01ebebbbe939e3abe890da81460103f8e0473cbc5df6ceb0e65

                                      SHA512

                                      5ac52583af6f17e0b7ac65091479cff978a200d1284d1a52308ee935925aea145694d3db2f21eb1a595d1067eab5356df0562dcd39fafb2ba5075225441c6484

                                    • 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\Local\Temp\z4KFlPP0f4kw.bat

                                      Filesize

                                      208B

                                      MD5

                                      ee888e0ee28aae3c0e249a41c5dfaacb

                                      SHA1

                                      bfdb9fb559562353cec5582322a7b18a630d39d0

                                      SHA256

                                      45a8852905ffde5dfaa27aa7c39ebb6ab089b1785a4b7a55d3da990738760c3f

                                      SHA512

                                      0a871756f86b0f74c18fc8b323ea4e57186b0f73c2c0b25e5e918bd8c6a41861259867d0474ef32ccf21e7faad3a456178ce25a556ac277ac7a0bca63b5a6976

                                    • C:\Users\Admin\AppData\Roaming\Logs\10-11-2024

                                      Filesize

                                      224B

                                      MD5

                                      d4b76e196ba2467f667a17b01f2b6f2d

                                      SHA1

                                      bd14e3ec35cd9ae6d8c6b4c066b4c3d58fd51992

                                      SHA256

                                      e65550471030a390569f6773088d025889588b293b4b8b3dabe5010710a19f2d

                                      SHA512

                                      d1446dd32bbe11f5be752d9858759e6c0b7a207cd3d10aaf1f83e7808ef7b6af69674bf4c1a4f6c8c20bf0dad61b207239a9e53636d638de9faffd421cdde3d1

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      9bb9c7abfb9bcf9b2fc7df72d6ea00e7

                                      SHA1

                                      e23ef1d652c83296a077c3641aab32a930fed682

                                      SHA256

                                      a67dad0d0d1fbee32de8c4c7c23d6f7c8155d283317e579b51380b57fc74adc7

                                      SHA512

                                      3836aa590fa6f680aea09d1141fee21ae202a79db08914a3a7bfdd3876f516d5c06014a563db147f01e9f89fe38e9fd0b8a927bad7b718c7b9054d21f2126372

                                    • memory/396-88-0x0000000073DC0000-0x0000000073DDB000-memory.dmp

                                      Filesize

                                      108KB

                                    • memory/512-73-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/512-67-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/556-45-0x0000000006F10000-0x0000000006F1A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/2248-29-0x000000007299E000-0x000000007299F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2248-37-0x00000000063C0000-0x00000000063FC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2248-36-0x00000000053F0000-0x0000000005402000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2248-35-0x0000000005240000-0x00000000052A6000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2248-34-0x0000000005160000-0x00000000051F2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2248-33-0x00000000057F0000-0x0000000005D94000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2248-32-0x0000000000840000-0x000000000089E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/4012-28-0x00000000003D0000-0x00000000003F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4012-20-0x00000000003D0000-0x00000000003F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/5096-19-0x0000000004430000-0x0000000004431000-memory.dmp

                                      Filesize

                                      4KB